id	sid	tid	token	lemma	pos
ispiv-166	1	1	14th	14th	ADJ
ispiv-166	1	2	international	international	ADJ
ispiv-166	1	3	symposium	symposium	NOUN
ispiv-166	1	4	on	on	ADP
ispiv-166	1	5	particle	particle	NOUN
ispiv-166	1	6	image	image	NOUN
ispiv-166	1	7	velocimetry	velocimetry	NOUN
ispiv-166	1	8	–	–	PUNCT
ispiv-166	1	9	ispiv	ispiv	NOUN
ispiv-166	1	10	2021	2021	NUM
ispiv-166	1	11	august	august	PROPN
ispiv-166	1	12	1–5	1–5	NUM
ispiv-166	1	13	,	,	PUNCT
ispiv-166	1	14	2021	2021	NUM
ispiv-166	1	15	flow	flow	NOUN
ispiv-166	1	16	characteristics	characteristic	NOUN
ispiv-166	1	17	analysis	analysis	NOUN
ispiv-166	1	18	for	for	ADP
ispiv-166	1	19	flow	flow	NOUN
ispiv-166	1	20	past	past	ADP
ispiv-166	1	21	the	the	DET
ispiv-166	1	22	porous	porous	ADJ
ispiv-166	1	23	spheres	sphere	NOUN
ispiv-166	1	24	:	:	PUNCT
ispiv-166	1	25	wake	wake	VERB
ispiv-166	1	26	structures	structure	NOUN
ispiv-166	1	27	likun	likun	ADJ
ispiv-166	1	28	ma13	ma13	PROPN
ispiv-166	1	29	,	,	PUNCT
ispiv-166	1	30	sina	sina	PROPN
ispiv-166	1	31	kashanj2	kashanj2	PROPN
ispiv-166	1	32	,	,	PUNCT
ispiv-166	1	33	shuliang	shuliang	PROPN
ispiv-166	1	34	xu1	xu1	PROPN
ispiv-166	1	35	,	,	PUNCT
ispiv-166	1	36	mao	mao	PROPN
ispiv-166	1	37	ye1	ye1	PROPN
ispiv-166	1	38	,	,	PUNCT
ispiv-166	1	39	david	david	PROPN
ispiv-166	1	40	s	s	PROPN
ispiv-166	1	41	nobes2∗	nobes2∗	PROPN
ispiv-166	1	42	1	1	NUM
ispiv-166	1	43	dalian	dalian	PROPN
ispiv-166	1	44	institute	institute	PROPN
ispiv-166	1	45	of	of	ADP
ispiv-166	1	46	chemical	chemical	PROPN
ispiv-166	1	47	physics	physics	PROPN
ispiv-166	1	48	,	,	PUNCT
ispiv-166	1	49	chinese	chinese	PROPN
ispiv-166	1	50	academy	academy	PROPN
ispiv-166	1	51	of	of	ADP
ispiv-166	1	52	sciences	sciences	PROPN
ispiv-166	1	53	,	,	PUNCT
ispiv-166	1	54	dalian	dalian	PROPN
ispiv-166	1	55	,	,	PUNCT
ispiv-166	1	56	p.r.china	p.r.china	ADJ
ispiv-166	1	57	2	2	NUM
ispiv-166	1	58	university	university	NOUN
ispiv-166	1	59	of	of	ADP
ispiv-166	1	60	alberta	alberta	PROPN
ispiv-166	1	61	,	,	PUNCT
ispiv-166	1	62	department	department	PROPN
ispiv-166	1	63	of	of	ADP
ispiv-166	1	64	mechanical	mechanical	ADJ
ispiv-166	1	65	engineering	engineering	PROPN
ispiv-166	1	66	,	,	PUNCT
ispiv-166	1	67	edmonton	edmonton	PROPN
ispiv-166	1	68	,	,	PUNCT
ispiv-166	1	69	canada	canada	PROPN
ispiv-166	1	70	3	3	NUM
ispiv-166	1	71	university	university	PROPN
ispiv-166	1	72	of	of	ADP
ispiv-166	1	73	chinese	chinese	PROPN
ispiv-166	1	74	academy	academy	PROPN
ispiv-166	1	75	of	of	ADP
ispiv-166	1	76	sciences	sciences	PROPN
ispiv-166	1	77	,	,	PUNCT
ispiv-166	1	78	beijing	beijing	PROPN
ispiv-166	1	79	,	,	PUNCT
ispiv-166	1	80	p.r.china	p.r.china	PROPN
ispiv-166	1	81	∗	∗	NOUN
ispiv-166	1	82	dnobes@ualberta.ca	dnobes@ualberta.ca	PROPN
ispiv-166	1	83	abstract	abstract	ADJ
ispiv-166	1	84	flow	flow	NOUN
ispiv-166	1	85	past	past	ADP
ispiv-166	1	86	a	a	DET
ispiv-166	1	87	permeable	permeable	ADJ
ispiv-166	1	88	sphere	sphere	NOUN
ispiv-166	1	89	is	be	AUX
ispiv-166	1	90	different	different	ADJ
ispiv-166	1	91	from	from	ADP
ispiv-166	1	92	that	that	PRON
ispiv-166	1	93	of	of	ADP
ispiv-166	1	94	a	a	DET
ispiv-166	1	95	solid	solid	ADJ
ispiv-166	1	96	sphere	sphere	NOUN
ispiv-166	1	97	due	due	ADP
ispiv-166	1	98	to	to	ADP
ispiv-166	1	99	the	the	DET
ispiv-166	1	100	penetration	penetration	NOUN
ispiv-166	1	101	of	of	ADP
ispiv-166	1	102	the	the	DET
ispiv-166	1	103	fluid	fluid	NOUN
ispiv-166	1	104	within	within	ADP
ispiv-166	1	105	porous	porous	ADJ
ispiv-166	1	106	structures	structure	NOUN
ispiv-166	1	107	,	,	PUNCT
ispiv-166	1	108	which	which	PRON
ispiv-166	1	109	can	can	AUX
ispiv-166	1	110	arise	arise	VERB
ispiv-166	1	111	a	a	DET
ispiv-166	1	112	change	change	NOUN
ispiv-166	1	113	of	of	ADP
ispiv-166	1	114	flow	flow	NOUN
ispiv-166	1	115	fields	field	NOUN
ispiv-166	1	116	.	.	PUNCT
ispiv-166	2	1	in	in	ADP
ispiv-166	2	2	this	this	DET
ispiv-166	2	3	work	work	NOUN
ispiv-166	2	4	,	,	PUNCT
ispiv-166	2	5	flow	flow	VERB
ispiv-166	2	6	past	past	ADP
ispiv-166	2	7	porous	porous	ADJ
ispiv-166	2	8	spheres	sphere	NOUN
ispiv-166	2	9	with	with	ADP
ispiv-166	2	10	darcy	darcy	PROPN
ispiv-166	2	11	numbers	number	NOUN
ispiv-166	2	12	(	(	PUNCT
ispiv-166	2	13	da	da	NOUN
ispiv-166	2	14	)	)	PUNCT
ispiv-166	2	15	ranging	range	VERB
ispiv-166	2	16	from	from	ADP
ispiv-166	2	17	[	[	X
ispiv-166	2	18	0,10−3	0,10−3	X
ispiv-166	2	19	]	]	PUNCT
ispiv-166	2	20	were	be	AUX
ispiv-166	2	21	measured	measure	VERB
ispiv-166	2	22	using	use	VERB
ispiv-166	2	23	planar	planar	ADJ
ispiv-166	2	24	particle	particle	NOUN
ispiv-166	2	25	image	image	NOUN
ispiv-166	2	26	velocimetry	velocimetry	NOUN
ispiv-166	2	27	(	(	PUNCT
ispiv-166	2	28	piv	piv	NOUN
ispiv-166	2	29	)	)	PUNCT
ispiv-166	2	30	.	.	PUNCT
ispiv-166	3	1	the	the	DET
ispiv-166	3	2	whole	whole	ADJ
ispiv-166	3	3	flow	flow	NOUN
ispiv-166	3	4	fields	field	NOUN
ispiv-166	3	5	,	,	PUNCT
ispiv-166	3	6	including	include	VERB
ispiv-166	3	7	both	both	DET
ispiv-166	3	8	leading	lead	VERB
ispiv-166	3	9	edge	edge	NOUN
ispiv-166	3	10	and	and	CCONJ
ispiv-166	3	11	trailing	trailing	NOUN
ispiv-166	3	12	edge	edge	NOUN
ispiv-166	3	13	,	,	PUNCT
ispiv-166	3	14	were	be	AUX
ispiv-166	3	15	captured	capture	VERB
ispiv-166	3	16	at	at	ADP
ispiv-166	3	17	six	six	NUM
ispiv-166	3	18	different	different	ADJ
ispiv-166	3	19	reynolds	reynold	NOUN
ispiv-166	3	20	numbers	number	NOUN
ispiv-166	3	21	(	(	PUNCT
ispiv-166	3	22	re	re	NOUN
ispiv-166	3	23	)	)	PUNCT
ispiv-166	3	24	varying	vary	VERB
ispiv-166	3	25	from	from	ADP
ispiv-166	3	26	400	400	NUM
ispiv-166	3	27	to	to	ADP
ispiv-166	3	28	1400	1400	NUM
ispiv-166	3	29	.	.	PUNCT
ispiv-166	4	1	time	time	NOUN
ispiv-166	4	2	-	-	PUNCT
ispiv-166	4	3	average	average	ADJ
ispiv-166	4	4	flow	flow	NOUN
ispiv-166	4	5	fields	field	NOUN
ispiv-166	4	6	were	be	AUX
ispiv-166	4	7	calculated	calculate	VERB
ispiv-166	4	8	based	base	VERB
ispiv-166	4	9	on	on	ADP
ispiv-166	4	10	instantaneous	instantaneous	ADJ
ispiv-166	4	11	flow	flow	NOUN
ispiv-166	4	12	fields	field	NOUN
ispiv-166	4	13	within	within	ADP
ispiv-166	4	14	fully	fully	ADV
ispiv-166	4	15	-	-	PUNCT
ispiv-166	4	16	developed	develop	VERB
ispiv-166	4	17	stages	stage	NOUN
ispiv-166	4	18	.	.	PUNCT
ispiv-166	5	1	local	local	ADJ
ispiv-166	5	2	minimum	minimum	ADJ
ispiv-166	5	3	method	method	NOUN
ispiv-166	5	4	was	be	AUX
ispiv-166	5	5	used	use	VERB
ispiv-166	5	6	to	to	PART
ispiv-166	5	7	search	search	VERB
ispiv-166	5	8	for	for	ADP
ispiv-166	5	9	stagnation	stagnation	NOUN
ispiv-166	5	10	point	point	NOUN
ispiv-166	5	11	positions	position	NOUN
ispiv-166	5	12	.	.	PUNCT
ispiv-166	6	1	the	the	DET
ispiv-166	6	2	results	result	NOUN
ispiv-166	6	3	show	show	VERB
ispiv-166	6	4	positions	position	NOUN
ispiv-166	6	5	of	of	ADP
ispiv-166	6	6	stagnation	stagnation	NOUN
ispiv-166	6	7	points	point	NOUN
ispiv-166	6	8	are	be	AUX
ispiv-166	6	9	nearly	nearly	ADV
ispiv-166	6	10	proportional	proportional	ADJ
ispiv-166	6	11	to	to	ADP
ispiv-166	6	12	the	the	DET
ispiv-166	6	13	logarithm	logarithm	NOUN
ispiv-166	6	14	of	of	ADP
ispiv-166	6	15	re	re	PROPN
ispiv-166	6	16	.	.	PUNCT
ispiv-166	7	1	for	for	ADP
ispiv-166	7	2	most	most	ADJ
ispiv-166	7	3	porous	porous	ADJ
ispiv-166	7	4	spheres	sphere	NOUN
ispiv-166	7	5	,	,	PUNCT
ispiv-166	7	6	positions	position	NOUN
ispiv-166	7	7	of	of	ADP
ispiv-166	7	8	stagnation	stagnation	NOUN
ispiv-166	7	9	points	point	NOUN
ispiv-166	7	10	are	be	AUX
ispiv-166	7	11	extended	extend	VERB
ispiv-166	7	12	to	to	ADP
ispiv-166	7	13	farther	far	ADV
ispiv-166	7	14	downstream	downstream	ADJ
ispiv-166	7	15	positions	position	NOUN
ispiv-166	7	16	than	than	ADP
ispiv-166	7	17	that	that	PRON
ispiv-166	7	18	of	of	ADP
ispiv-166	7	19	a	a	DET
ispiv-166	7	20	solid	solid	ADJ
ispiv-166	7	21	sphere	sphere	NOUN
ispiv-166	7	22	.	.	PUNCT
ispiv-166	8	1	however	however	ADV
ispiv-166	8	2	,	,	PUNCT
ispiv-166	8	3	at	at	ADP
ispiv-166	8	4	some	some	DET
ispiv-166	8	5	certain	certain	ADJ
ispiv-166	8	6	darcy	darcy	NOUN
ispiv-166	8	7	numbers	number	NOUN
ispiv-166	8	8	,	,	PUNCT
ispiv-166	8	9	ranging	range	VERB
ispiv-166	8	10	from	from	ADP
ispiv-166	8	11	5∗10−6	5∗10−6	NUM
ispiv-166	8	12	to	to	ADP
ispiv-166	8	13	2∗10−5	2∗10−5	NUM
ispiv-166	8	14	,	,	PUNCT
ispiv-166	8	15	positions	position	NOUN
ispiv-166	8	16	of	of	ADP
ispiv-166	8	17	stagnation	stagnation	NOUN
ispiv-166	8	18	points	point	NOUN
ispiv-166	8	19	are	be	AUX
ispiv-166	8	20	closer	close	ADJ
ispiv-166	8	21	to	to	ADP
ispiv-166	8	22	the	the	DET
ispiv-166	8	23	sphere	sphere	NOUN
ispiv-166	8	24	centers	center	NOUN
ispiv-166	8	25	than	than	ADP
ispiv-166	8	26	that	that	PRON
ispiv-166	8	27	of	of	ADP
ispiv-166	8	28	an	an	DET
ispiv-166	8	29	impermeable	impermeable	ADJ
ispiv-166	8	30	one	one	NUM
ispiv-166	8	31	.	.	PUNCT
ispiv-166	9	1	1	1	NUM
ispiv-166	9	2	introduction	introduction	NOUN
ispiv-166	9	3	the	the	DET
ispiv-166	9	4	flow	flow	NOUN
ispiv-166	9	5	through	through	ADP
ispiv-166	9	6	and	and	CCONJ
ispiv-166	9	7	around	around	ADP
ispiv-166	9	8	a	a	DET
ispiv-166	9	9	group	group	NOUN
ispiv-166	9	10	of	of	ADP
ispiv-166	9	11	particles	particle	NOUN
ispiv-166	9	12	or	or	CCONJ
ispiv-166	9	13	a	a	DET
ispiv-166	9	14	permeable	permeable	ADJ
ispiv-166	9	15	body	body	NOUN
ispiv-166	9	16	is	be	AUX
ispiv-166	9	17	widely	widely	ADV
ispiv-166	9	18	seen	see	VERB
ispiv-166	9	19	in	in	ADP
ispiv-166	9	20	many	many	ADJ
ispiv-166	9	21	industrial	industrial	ADJ
ispiv-166	9	22	processes	process	NOUN
ispiv-166	9	23	,	,	PUNCT
ispiv-166	9	24	including	include	VERB
ispiv-166	9	25	the	the	DET
ispiv-166	9	26	motion	motion	NOUN
ispiv-166	9	27	of	of	ADP
ispiv-166	9	28	clusters	cluster	NOUN
ispiv-166	9	29	in	in	ADP
ispiv-166	9	30	fluidized	fluidize	VERB
ispiv-166	9	31	bed	bed	NOUN
ispiv-166	9	32	reactors	reactor	NOUN
ispiv-166	9	33	,	,	PUNCT
ispiv-166	9	34	movement	movement	NOUN
ispiv-166	9	35	of	of	ADP
ispiv-166	9	36	coal	coal	NOUN
ispiv-166	9	37	particles	particle	NOUN
ispiv-166	9	38	in	in	ADP
ispiv-166	9	39	power	power	NOUN
ispiv-166	9	40	stations	station	NOUN
ispiv-166	9	41	and	and	CCONJ
ispiv-166	9	42	transport	transport	NOUN
ispiv-166	9	43	of	of	ADP
ispiv-166	9	44	porous	porous	ADJ
ispiv-166	9	45	microcarriers	microcarrier	NOUN
ispiv-166	9	46	in	in	ADP
ispiv-166	9	47	bioreactors	bioreactor	NOUN
ispiv-166	9	48	.	.	PUNCT
ispiv-166	10	1	understanding	understand	VERB
ispiv-166	10	2	flow	flow	NOUN
ispiv-166	10	3	characteristics	characteristic	NOUN
ispiv-166	10	4	,	,	PUNCT
ispiv-166	10	5	especially	especially	ADV
ispiv-166	10	6	wake	wake	VERB
ispiv-166	10	7	structures	structure	NOUN
ispiv-166	10	8	and	and	CCONJ
ispiv-166	10	9	fluid	fluid	ADJ
ispiv-166	10	10	-	-	PUNCT
ispiv-166	10	11	particle	particle	NOUN
ispiv-166	10	12	interaction	interaction	NOUN
ispiv-166	10	13	forces	force	NOUN
ispiv-166	10	14	,	,	PUNCT
ispiv-166	10	15	of	of	ADP
ispiv-166	10	16	permeable	permeable	ADJ
ispiv-166	10	17	bodies	body	NOUN
ispiv-166	10	18	which	which	PRON
ispiv-166	10	19	are	be	AUX
ispiv-166	10	20	different	different	ADJ
ispiv-166	10	21	from	from	ADP
ispiv-166	10	22	solid	solid	ADJ
ispiv-166	10	23	bodies	body	NOUN
ispiv-166	10	24	,	,	PUNCT
ispiv-166	10	25	is	be	AUX
ispiv-166	10	26	important	important	ADJ
ispiv-166	10	27	for	for	ADP
ispiv-166	10	28	the	the	DET
ispiv-166	10	29	control	control	NOUN
ispiv-166	10	30	of	of	ADP
ispiv-166	10	31	these	these	DET
ispiv-166	10	32	processes	process	NOUN
ispiv-166	10	33	yu	yu	PROPN
ispiv-166	10	34	et	et	PROPN
ispiv-166	10	35	al	al	PROPN
ispiv-166	10	36	.	.	PROPN
ispiv-166	11	1	(	(	PUNCT
ispiv-166	11	2	2012	2012	NUM
ispiv-166	11	3	)	)	PUNCT
ispiv-166	11	4	.	.	PUNCT
ispiv-166	12	1	theoretical	theoretical	ADJ
ispiv-166	12	2	analysis	analysis	NOUN
ispiv-166	12	3	of	of	ADP
ispiv-166	12	4	flow	flow	NOUN
ispiv-166	12	5	characteristics	characteristic	NOUN
ispiv-166	12	6	for	for	ADP
ispiv-166	12	7	flow	flow	NOUN
ispiv-166	12	8	past	past	ADP
ispiv-166	12	9	a	a	DET
ispiv-166	12	10	porous	porous	ADJ
ispiv-166	12	11	sphere	sphere	NOUN
ispiv-166	12	12	has	have	AUX
ispiv-166	12	13	been	be	AUX
ispiv-166	12	14	limited	limit	VERB
ispiv-166	12	15	to	to	ADP
ispiv-166	12	16	the	the	DET
ispiv-166	12	17	creeping	creep	VERB
ispiv-166	12	18	flow	flow	NOUN
ispiv-166	12	19	regime	regime	NOUN
ispiv-166	12	20	where	where	SCONJ
ispiv-166	12	21	inertial	inertial	ADJ
ispiv-166	12	22	effects	effect	NOUN
ispiv-166	12	23	can	can	AUX
ispiv-166	12	24	be	be	AUX
ispiv-166	12	25	neglected	neglect	VERB
ispiv-166	12	26	.	.	PUNCT
ispiv-166	13	1	for	for	ADP
ispiv-166	13	2	higher	high	ADJ
ispiv-166	13	3	reynolds	reynold	NOUN
ispiv-166	13	4	numbers	number	NOUN
ispiv-166	13	5	,	,	PUNCT
ispiv-166	13	6	many	many	ADJ
ispiv-166	13	7	numerical	numerical	ADJ
ispiv-166	13	8	simulations	simulation	NOUN
ispiv-166	13	9	studies	study	NOUN
ispiv-166	13	10	wu	wu	PROPN
ispiv-166	13	11	and	and	CCONJ
ispiv-166	13	12	lee	lee	PROPN
ispiv-166	13	13	(	(	PUNCT
ispiv-166	13	14	1999	1999	NUM
ispiv-166	13	15	)	)	PUNCT
ispiv-166	13	16	;	;	PUNCT
ispiv-166	13	17	wittig	wittig	X
ispiv-166	13	18	et	et	PROPN
ispiv-166	13	19	al	al	PROPN
ispiv-166	13	20	.	.	PROPN
ispiv-166	14	1	(	(	PUNCT
ispiv-166	14	2	2017	2017	NUM
ispiv-166	14	3	)	)	PUNCT
ispiv-166	14	4	have	have	AUX
ispiv-166	14	5	been	be	AUX
ispiv-166	14	6	carried	carry	VERB
ispiv-166	14	7	out	out	ADP
ispiv-166	14	8	and	and	CCONJ
ispiv-166	14	9	it	it	PRON
ispiv-166	14	10	has	have	AUX
ispiv-166	14	11	been	be	AUX
ispiv-166	14	12	found	find	VERB
ispiv-166	14	13	yu	yu	PROPN
ispiv-166	14	14	et	et	PROPN
ispiv-166	14	15	al	al	PROPN
ispiv-166	14	16	.	.	PROPN
ispiv-166	15	1	(	(	PUNCT
ispiv-166	15	2	2012	2012	NUM
ispiv-166	15	3	)	)	PUNCT
ispiv-166	15	4	the	the	DET
ispiv-166	15	5	length	length	NOUN
ispiv-166	15	6	of	of	ADP
ispiv-166	15	7	wake	wake	NOUN
ispiv-166	15	8	for	for	ADP
ispiv-166	15	9	flow	flow	NOUN
ispiv-166	15	10	past	past	ADP
ispiv-166	15	11	a	a	DET
ispiv-166	15	12	porous	porous	ADJ
ispiv-166	15	13	sphere	sphere	NOUN
ispiv-166	15	14	is	be	AUX
ispiv-166	15	15	different	different	ADJ
ispiv-166	15	16	from	from	ADP
ispiv-166	15	17	that	that	PRON
ispiv-166	15	18	of	of	ADP
ispiv-166	15	19	a	a	DET
ispiv-166	15	20	solid	solid	ADJ
ispiv-166	15	21	sphere	sphere	NOUN
ispiv-166	15	22	and	and	CCONJ
ispiv-166	15	23	varies	vary	VERB
ispiv-166	15	24	with	with	ADP
ispiv-166	15	25	permeability	permeability	NOUN
ispiv-166	15	26	.	.	PUNCT
ispiv-166	16	1	a	a	DET
ispiv-166	16	2	detached	detach	VERB
ispiv-166	16	3	or	or	CCONJ
ispiv-166	16	4	penetrating	penetrating	NOUN
ispiv-166	16	5	wake	wake	NOUN
ispiv-166	16	6	is	be	AUX
ispiv-166	16	7	also	also	ADV
ispiv-166	16	8	observed	observe	VERB
ispiv-166	16	9	for	for	ADP
ispiv-166	16	10	a	a	DET
ispiv-166	16	11	certain	certain	ADJ
ispiv-166	16	12	permeability	permeability	NOUN
ispiv-166	16	13	range	range	NOUN
ispiv-166	16	14	,	,	PUNCT
ispiv-166	16	15	which	which	PRON
ispiv-166	16	16	is	be	AUX
ispiv-166	16	17	different	different	ADJ
ispiv-166	16	18	from	from	ADP
ispiv-166	16	19	the	the	DET
ispiv-166	16	20	attached	attached	ADJ
ispiv-166	16	21	wake	wake	NOUN
ispiv-166	16	22	of	of	ADP
ispiv-166	16	23	a	a	DET
ispiv-166	16	24	solid	solid	ADJ
ispiv-166	16	25	sphere	sphere	NOUN
ispiv-166	16	26	.	.	PUNCT
ispiv-166	17	1	additionally	additionally	ADV
ispiv-166	17	2	,	,	PUNCT
ispiv-166	17	3	the	the	DET
ispiv-166	17	4	changed	change	VERB
ispiv-166	17	5	wake	wake	VERB
ispiv-166	17	6	structures	structure	NOUN
ispiv-166	17	7	can	can	AUX
ispiv-166	17	8	affect	affect	VERB
ispiv-166	17	9	the	the	DET
ispiv-166	17	10	force	force	NOUN
ispiv-166	17	11	acting	act	VERB
ispiv-166	17	12	on	on	ADP
ispiv-166	17	13	the	the	DET
ispiv-166	17	14	sphere	sphere	NOUN
ispiv-166	17	15	,	,	PUNCT
ispiv-166	17	16	such	such	ADJ
ispiv-166	17	17	as	as	ADP
ispiv-166	17	18	the	the	DET
ispiv-166	17	19	pressure	pressure	NOUN
ispiv-166	17	20	drag	drag	NOUN
ispiv-166	17	21	force	force	NOUN
ispiv-166	17	22	.	.	PUNCT
ispiv-166	18	1	however	however	ADV
ispiv-166	18	2	,	,	PUNCT
ispiv-166	18	3	it	it	PRON
ispiv-166	18	4	’s	’	VERB
ispiv-166	18	5	difficult	difficult	ADJ
ispiv-166	18	6	for	for	SCONJ
ispiv-166	18	7	numerical	numerical	ADJ
ispiv-166	18	8	simulations	simulation	NOUN
ispiv-166	18	9	to	to	PART
ispiv-166	18	10	determine	determine	VERB
ispiv-166	18	11	appropriate	appropriate	ADJ
ispiv-166	18	12	fluid	fluid	ADJ
ispiv-166	18	13	-	-	PUNCT
ispiv-166	18	14	porous	porous	ADJ
ispiv-166	18	15	interface	interface	NOUN
ispiv-166	18	16	boundary	boundary	ADJ
ispiv-166	18	17	conditions	condition	NOUN
ispiv-166	18	18	for	for	ADP
ispiv-166	18	19	porous	porous	ADJ
ispiv-166	18	20	spheres	sphere	NOUN
ispiv-166	18	21	,	,	PUNCT
ispiv-166	18	22	which	which	PRON
ispiv-166	18	23	can	can	AUX
ispiv-166	18	24	significantly	significantly	ADV
ispiv-166	18	25	affect	affect	VERB
ispiv-166	18	26	the	the	DET
ispiv-166	18	27	simulation	simulation	NOUN
ispiv-166	18	28	results	result	NOUN
ispiv-166	18	29	.	.	PUNCT
ispiv-166	19	1	thus	thus	ADV
ispiv-166	19	2	,	,	PUNCT
ispiv-166	19	3	there	there	PRON
ispiv-166	19	4	is	be	VERB
ispiv-166	19	5	a	a	DET
ispiv-166	19	6	need	need	NOUN
ispiv-166	19	7	for	for	ADP
ispiv-166	19	8	detailed	detailed	ADJ
ispiv-166	19	9	experimental	experimental	ADJ
ispiv-166	19	10	results	result	NOUN
ispiv-166	19	11	of	of	ADP
ispiv-166	19	12	porous	porous	ADJ
ispiv-166	19	13	spheres	sphere	NOUN
ispiv-166	19	14	as	as	ADP
ispiv-166	19	15	a	a	DET
ispiv-166	19	16	benchmark	benchmark	NOUN
ispiv-166	19	17	to	to	PART
ispiv-166	19	18	understand	understand	VERB
ispiv-166	19	19	wake	wake	VERB
ispiv-166	19	20	characteristics	characteristic	NOUN
ispiv-166	19	21	and	and	CCONJ
ispiv-166	19	22	validate	validate	VERB
ispiv-166	19	23	numerical	numerical	ADJ
ispiv-166	19	24	simulations	simulation	NOUN
ispiv-166	19	25	results	result	NOUN
ispiv-166	19	26	.	.	PUNCT
ispiv-166	20	1	piv	piv	NOUN
ispiv-166	20	2	is	be	AUX
ispiv-166	20	3	a	a	DET
ispiv-166	20	4	non	non	ADJ
ispiv-166	20	5	-	-	ADJ
ispiv-166	20	6	intrusive	intrusive	ADJ
ispiv-166	20	7	measurement	measurement	NOUN
ispiv-166	20	8	technique	technique	NOUN
ispiv-166	20	9	which	which	PRON
ispiv-166	20	10	can	can	AUX
ispiv-166	20	11	provide	provide	VERB
ispiv-166	20	12	velocity	velocity	NOUN
ispiv-166	20	13	field	field	NOUN
ispiv-166	20	14	of	of	ADP
ispiv-166	20	15	full	full	ADJ
ispiv-166	20	16	field	field	NOUN
ispiv-166	20	17	with	with	ADP
ispiv-166	20	18	excellent	excellent	ADJ
ispiv-166	20	19	temporal	temporal	ADJ
ispiv-166	20	20	and	and	CCONJ
ispiv-166	20	21	spatial	spatial	ADJ
ispiv-166	20	22	resolution	resolution	NOUN
ispiv-166	20	23	.	.	PUNCT
ispiv-166	21	1	in	in	ADP
ispiv-166	21	2	this	this	DET
ispiv-166	21	3	paper	paper	NOUN
ispiv-166	21	4	,	,	PUNCT
ispiv-166	21	5	the	the	DET
ispiv-166	21	6	effect	effect	NOUN
ispiv-166	21	7	of	of	ADP
ispiv-166	21	8	the	the	DET
ispiv-166	21	9	permeability	permeability	NOUN
ispiv-166	21	10	for	for	ADP
ispiv-166	21	11	flow	flow	NOUN
ispiv-166	21	12	fields	field	NOUN
ispiv-166	21	13	is	be	AUX
ispiv-166	21	14	investigated	investigate	VERB
ispiv-166	21	15	by	by	ADP
ispiv-166	21	16	applying	apply	VERB
ispiv-166	21	17	piv	piv	NOUN
ispiv-166	21	18	technique	technique	NOUN
ispiv-166	21	19	to	to	PART
ispiv-166	21	20	visualize	visualize	VERB
ispiv-166	21	21	the	the	DET
ispiv-166	21	22	difference	difference	NOUN
ispiv-166	21	23	of	of	ADP
ispiv-166	21	24	the	the	DET
ispiv-166	21	25	flow	flow	NOUN
ispiv-166	21	26	past	past	ADP
ispiv-166	21	27	a	a	DET
ispiv-166	21	28	solid	solid	ADJ
ispiv-166	21	29	sphere	sphere	NOUN
ispiv-166	21	30	and	and	CCONJ
ispiv-166	21	31	a	a	DET
ispiv-166	21	32	porous	porous	ADJ
ispiv-166	21	33	one	one	NUM
ispiv-166	21	34	.	.	PUNCT
ispiv-166	22	1	2	2	NUM
ispiv-166	22	2	experimental	experimental	ADJ
ispiv-166	22	3	setup	setup	NOUN
ispiv-166	22	4	in	in	ADP
ispiv-166	22	5	our	our	PRON
ispiv-166	22	6	experiments	experiment	NOUN
ispiv-166	22	7	,	,	PUNCT
ispiv-166	22	8	all	all	DET
ispiv-166	22	9	spheres	sphere	NOUN
ispiv-166	22	10	are	be	AUX
ispiv-166	22	11	connected	connect	VERB
ispiv-166	22	12	to	to	ADP
ispiv-166	22	13	a	a	DET
ispiv-166	22	14	traverse	traverse	NOUN
ispiv-166	22	15	moving	move	VERB
ispiv-166	22	16	in	in	ADP
ispiv-166	22	17	horizontal	horizontal	ADJ
ispiv-166	22	18	direction	direction	NOUN
ispiv-166	22	19	which	which	PRON
ispiv-166	22	20	can	can	AUX
ispiv-166	22	21	be	be	AUX
ispiv-166	22	22	controlled	control	VERB
ispiv-166	22	23	with	with	ADP
ispiv-166	22	24	a	a	DET
ispiv-166	22	25	controller	controller	NOUN
ispiv-166	22	26	to	to	PART
ispiv-166	22	27	be	be	AUX
ispiv-166	22	28	given	give	VERB
ispiv-166	22	29	a	a	DET
ispiv-166	22	30	constant	constant	ADJ
ispiv-166	22	31	velocity	velocity	NOUN
ispiv-166	22	32	with	with	ADP
ispiv-166	22	33	400	400	NUM
ispiv-166	22	34	≤	≤	NUM
ispiv-166	22	35	re	re	NOUN
ispiv-166	22	36	≤	≤	NOUN
ispiv-166	22	37	1400	1400	NUM
ispiv-166	22	38	.	.	PUNCT
ispiv-166	23	1	2d	2d	NOUN
ispiv-166	23	2	-	-	PUNCT
ispiv-166	23	3	piv	piv	NOUN
ispiv-166	23	4	is	be	AUX
ispiv-166	23	5	used	use	VERB
ispiv-166	23	6	to	to	PART
ispiv-166	23	7	capture	capture	VERB
ispiv-166	23	8	time	time	NOUN
ispiv-166	23	9	-	-	PUNCT
ispiv-166	23	10	dependent	dependent	ADJ
ispiv-166	23	11	flow	flow	NOUN
ispiv-166	23	12	field	field	NOUN
ispiv-166	23	13	and	and	CCONJ
ispiv-166	23	14	a	a	DET
ispiv-166	23	15	double	double	ADJ
ispiv-166	23	16	frame	frame	NOUN
ispiv-166	23	17	ccd	ccd	NOUN
ispiv-166	23	18	camera	camera	NOUN
ispiv-166	23	19	is	be	AUX
ispiv-166	23	20	synchronized	synchronize	VERB
ispiv-166	23	21	to	to	ADP
ispiv-166	23	22	a	a	DET
ispiv-166	23	23	double	double	ADJ
ispiv-166	23	24	pulse	pulse	NOUN
ispiv-166	23	25	laser	laser	NOUN
ispiv-166	23	26	to	to	PART
ispiv-166	23	27	capture	capture	VERB
ispiv-166	23	28	images	image	NOUN
ispiv-166	23	29	of	of	ADP
ispiv-166	23	30	fluid	fluid	ADJ
ispiv-166	23	31	flow	flow	NOUN
ispiv-166	23	32	seeded	seed	VERB
ispiv-166	23	33	with	with	ADP
ispiv-166	23	34	18	18	NUM
ispiv-166	23	35	µm	µm	NUM
ispiv-166	23	36	hollow	hollow	ADJ
ispiv-166	23	37	glass	glass	NOUN
ispiv-166	23	38	particles	particle	NOUN
ispiv-166	23	39	.	.	PUNCT
ispiv-166	24	1	both	both	DET
ispiv-166	24	2	camera	camera	NOUN
ispiv-166	24	3	and	and	CCONJ
ispiv-166	24	4	the	the	DET
ispiv-166	24	5	sphere	sphere	NOUN
ispiv-166	24	6	are	be	AUX
ispiv-166	24	7	connected	connect	VERB
ispiv-166	24	8	to	to	ADP
ispiv-166	24	9	the	the	DET
ispiv-166	24	10	traverse	traverse	NOUN
ispiv-166	24	11	to	to	PART
ispiv-166	24	12	capture	capture	VERB
ispiv-166	24	13	the	the	DET
ispiv-166	24	14	images	image	NOUN
ispiv-166	24	15	in	in	ADP
ispiv-166	24	16	an	an	DET
ispiv-166	24	17	eulerian	eulerian	ADJ
ispiv-166	24	18	reference	reference	NOUN
ispiv-166	24	19	frame	frame	NOUN
ispiv-166	24	20	.	.	PUNCT
ispiv-166	25	1	3	3	NUM
ispiv-166	25	2	results	result	NOUN
ispiv-166	25	3	and	and	CCONJ
ispiv-166	25	4	discussion	discussion	NOUN
ispiv-166	25	5	figure	figure	NOUN
ispiv-166	25	6	1	1	NUM
ispiv-166	25	7	:	:	PUNCT
ispiv-166	25	8	variation	variation	NOUN
ispiv-166	25	9	of	of	ADP
ispiv-166	25	10	stagnation	stagnation	NOUN
ispiv-166	25	11	points	point	NOUN
ispiv-166	25	12	positions	position	NOUN
ispiv-166	25	13	along	along	ADP
ispiv-166	25	14	re	re	ADP
ispiv-166	25	15	at	at	ADP
ispiv-166	25	16	nine	nine	NUM
ispiv-166	25	17	different	different	ADJ
ispiv-166	25	18	darcy	darcy	PROPN
ispiv-166	25	19	numbers	number	NOUN
ispiv-166	25	20	darcy	darcy	PROPN
ispiv-166	25	21	numbers	number	NOUN
ispiv-166	25	22	is	be	AUX
ispiv-166	25	23	dimensionless	dimensionless	ADJ
ispiv-166	25	24	permeability	permeability	NOUN
ispiv-166	25	25	,	,	PUNCT
ispiv-166	25	26	which	which	PRON
ispiv-166	25	27	can	can	AUX
ispiv-166	25	28	be	be	AUX
ispiv-166	25	29	written	write	VERB
ispiv-166	25	30	as	as	ADP
ispiv-166	25	31	da=	da=	PROPN
ispiv-166	25	32	k	k	PROPN
ispiv-166	25	33	/	/	SYM
ispiv-166	25	34	d2	d2	PROPN
ispiv-166	25	35	=	=	PUNCT
ispiv-166	25	36	d2	d2	PROPN
ispiv-166	25	37	·	·	PUNCT
ispiv-166	25	38	ε3/	ε3/	X
ispiv-166	25	39	(	(	PUNCT
ispiv-166	25	40	d2	d2	PROPN
ispiv-166	25	41	·	·	PUNCT
ispiv-166	25	42	180	180	NUM
ispiv-166	25	43	(	(	PUNCT
ispiv-166	25	44	1−	1−	NUM
ispiv-166	25	45	ε	ε	PROPN
ispiv-166	25	46	2	2	NUM
ispiv-166	25	47	)	)	PUNCT
ispiv-166	25	48	)	)	PUNCT
ispiv-166	25	49	.	.	PUNCT
ispiv-166	26	1	in	in	ADP
ispiv-166	26	2	this	this	DET
ispiv-166	26	3	study	study	NOUN
ispiv-166	26	4	,	,	PUNCT
ispiv-166	26	5	flow	flow	NOUN
ispiv-166	26	6	fields	field	NOUN
ispiv-166	26	7	of	of	ADP
ispiv-166	26	8	porous	porous	ADJ
ispiv-166	26	9	spheres	sphere	NOUN
ispiv-166	26	10	with	with	ADP
ispiv-166	26	11	darcy	darcy	PROPN
ispiv-166	26	12	numbers	number	NOUN
ispiv-166	26	13	ranging	range	VERB
ispiv-166	26	14	from	from	ADP
ispiv-166	26	15	[	[	X
ispiv-166	26	16	0,10−3	0,10−3	X
ispiv-166	26	17	]	]	PUNCT
ispiv-166	26	18	were	be	AUX
ispiv-166	26	19	captured	capture	VERB
ispiv-166	26	20	at	at	ADP
ispiv-166	26	21	re	re	NOUN
ispiv-166	26	22	=	=	NOUN
ispiv-166	26	23	400,600,800,1000,1200,1400	400,600,800,1000,1200,1400	NUM
ispiv-166	26	24	.	.	PUNCT
ispiv-166	27	1	instantaneous	instantaneous	ADJ
ispiv-166	27	2	frames	frame	NOUN
ispiv-166	27	3	in	in	ADP
ispiv-166	27	4	fully	fully	ADV
ispiv-166	27	5	-	-	PUNCT
ispiv-166	27	6	developed	develop	VERB
ispiv-166	27	7	stage	stage	NOUN
ispiv-166	27	8	were	be	AUX
ispiv-166	27	9	used	use	VERB
ispiv-166	27	10	to	to	PART
ispiv-166	27	11	calculate	calculate	VERB
ispiv-166	27	12	time	time	NOUN
ispiv-166	27	13	-	-	PUNCT
ispiv-166	27	14	average	average	ADJ
ispiv-166	27	15	flow	flow	NOUN
ispiv-166	27	16	fields	field	NOUN
ispiv-166	27	17	.	.	PUNCT
ispiv-166	28	1	local	local	ADJ
ispiv-166	28	2	minimums	minimum	NOUN
ispiv-166	28	3	of	of	ADP
ispiv-166	28	4	the	the	DET
ispiv-166	28	5	vector	vector	NOUN
ispiv-166	28	6	field	field	NOUN
ispiv-166	28	7	were	be	AUX
ispiv-166	28	8	regarded	regard	VERB
ispiv-166	28	9	as	as	ADP
ispiv-166	28	10	stagnation	stagnation	NOUN
ispiv-166	28	11	point	point	NOUN
ispiv-166	28	12	positions	position	NOUN
ispiv-166	28	13	.	.	PUNCT
ispiv-166	29	1	it	it	PRON
ispiv-166	29	2	can	can	AUX
ispiv-166	29	3	be	be	AUX
ispiv-166	29	4	found	find	VERB
ispiv-166	29	5	for	for	ADP
ispiv-166	29	6	a	a	DET
ispiv-166	29	7	high	high	ADJ
ispiv-166	29	8	permeability	permeability	NOUN
ispiv-166	29	9	when	when	SCONJ
ispiv-166	29	10	da	da	PROPN
ispiv-166	29	11	is	be	AUX
ispiv-166	29	12	more	more	ADJ
ispiv-166	29	13	than	than	ADP
ispiv-166	29	14	5.05	5.05	NUM
ispiv-166	29	15	∗	∗	NOUN
ispiv-166	29	16	10−4	10−4	NUM
ispiv-166	29	17	,	,	PUNCT
ispiv-166	29	18	as	as	SCONJ
ispiv-166	29	19	shown	show	VERB
ispiv-166	29	20	in	in	ADP
ispiv-166	29	21	figure	figure	NOUN
ispiv-166	29	22	1	1	NUM
ispiv-166	29	23	,	,	PUNCT
ispiv-166	29	24	positions	position	NOUN
ispiv-166	29	25	of	of	ADP
ispiv-166	29	26	stagnations	stagnation	NOUN
ispiv-166	29	27	points	point	VERB
ispiv-166	29	28	from	from	ADP
ispiv-166	29	29	sphere	sphere	NOUN
ispiv-166	29	30	centers	center	NOUN
ispiv-166	29	31	are	be	AUX
ispiv-166	29	32	significantly	significantly	ADV
ispiv-166	29	33	increased	increase	VERB
ispiv-166	29	34	compared	compare	VERB
ispiv-166	29	35	with	with	ADP
ispiv-166	29	36	that	that	PRON
ispiv-166	29	37	of	of	ADP
ispiv-166	29	38	a	a	DET
ispiv-166	29	39	solid	solid	ADJ
ispiv-166	29	40	sphere	sphere	NOUN
ispiv-166	29	41	.	.	PUNCT
ispiv-166	30	1	for	for	ADP
ispiv-166	30	2	most	most	ADJ
ispiv-166	30	3	porous	porous	ADJ
ispiv-166	30	4	spheres	sphere	NOUN
ispiv-166	30	5	,	,	PUNCT
ispiv-166	30	6	positions	position	NOUN
ispiv-166	30	7	of	of	ADP
ispiv-166	30	8	stagnation	stagnation	NOUN
ispiv-166	30	9	points	point	NOUN
ispiv-166	30	10	are	be	AUX
ispiv-166	30	11	extended	extend	VERB
ispiv-166	30	12	to	to	ADP
ispiv-166	30	13	farther	far	ADV
ispiv-166	30	14	downstream	downstream	ADJ
ispiv-166	30	15	positions	position	NOUN
ispiv-166	30	16	than	than	ADP
ispiv-166	30	17	that	that	PRON
ispiv-166	30	18	of	of	ADP
ispiv-166	30	19	a	a	DET
ispiv-166	30	20	solid	solid	ADJ
ispiv-166	30	21	sphere	sphere	NOUN
ispiv-166	30	22	while	while	SCONJ
ispiv-166	30	23	it	it	PRON
ispiv-166	30	24	is	be	AUX
ispiv-166	30	25	only	only	ADV
ispiv-166	30	26	increased	increase	VERB
ispiv-166	30	27	slightly	slightly	ADV
ispiv-166	30	28	for	for	ADP
ispiv-166	30	29	the	the	DET
ispiv-166	30	30	low	low	ADJ
ispiv-166	30	31	permeability	permeability	NOUN
ispiv-166	30	32	spheres	sphere	NOUN
ispiv-166	30	33	.	.	PUNCT
ispiv-166	31	1	however	however	ADV
ispiv-166	31	2	,	,	PUNCT
ispiv-166	31	3	at	at	ADP
ispiv-166	31	4	some	some	DET
ispiv-166	31	5	certain	certain	ADJ
ispiv-166	31	6	darcy	darcy	NOUN
ispiv-166	31	7	numbers	number	NOUN
ispiv-166	31	8	,	,	PUNCT
ispiv-166	31	9	ranging	range	VERB
ispiv-166	31	10	from	from	ADP
ispiv-166	31	11	5	5	NUM
ispiv-166	31	12	∗	∗	NOUN
ispiv-166	31	13	10−6	10−6	NUM
ispiv-166	31	14	to	to	ADP
ispiv-166	31	15	2	2	NUM
ispiv-166	31	16	∗	∗	NOUN
ispiv-166	31	17	10−5	10−5	NUM
ispiv-166	31	18	,	,	PUNCT
ispiv-166	31	19	positions	position	NOUN
ispiv-166	31	20	of	of	ADP
ispiv-166	31	21	stagnation	stagnation	NOUN
ispiv-166	31	22	points	point	NOUN
ispiv-166	31	23	are	be	AUX
ispiv-166	31	24	closer	close	ADJ
ispiv-166	31	25	to	to	ADP
ispiv-166	31	26	the	the	DET
ispiv-166	31	27	sphere	sphere	NOUN
ispiv-166	31	28	centers	center	NOUN
ispiv-166	31	29	than	than	ADP
ispiv-166	31	30	that	that	PRON
ispiv-166	31	31	of	of	ADP
ispiv-166	31	32	an	an	DET
ispiv-166	31	33	impermeable	impermeable	ADJ
ispiv-166	31	34	one	one	NUM
ispiv-166	31	35	.	.	PUNCT
ispiv-166	32	1	these	these	DET
ispiv-166	32	2	phenomena	phenomenon	NOUN
ispiv-166	32	3	are	be	AUX
ispiv-166	32	4	because	because	SCONJ
ispiv-166	32	5	,	,	PUNCT
ispiv-166	32	6	for	for	ADP
ispiv-166	32	7	a	a	DET
ispiv-166	32	8	large	large	ADJ
ispiv-166	32	9	permeability	permeability	NOUN
ispiv-166	32	10	,	,	PUNCT
ispiv-166	32	11	a	a	DET
ispiv-166	32	12	higher	high	ADJ
ispiv-166	32	13	percentage	percentage	NOUN
ispiv-166	32	14	of	of	ADP
ispiv-166	32	15	fluid	fluid	NOUN
ispiv-166	32	16	will	will	AUX
ispiv-166	32	17	go	go	VERB
ispiv-166	32	18	through	through	ADP
ispiv-166	32	19	rather	rather	ADV
ispiv-166	32	20	than	than	ADP
ispiv-166	32	21	flow	flow	VERB
ispiv-166	32	22	around	around	ADP
ispiv-166	32	23	the	the	DET
ispiv-166	32	24	porous	porous	ADJ
ispiv-166	32	25	sphere	sphere	NOUN
ispiv-166	32	26	,	,	PUNCT
ispiv-166	32	27	causing	cause	VERB
ispiv-166	32	28	a	a	DET
ispiv-166	32	29	decrease	decrease	NOUN
ispiv-166	32	30	on	on	ADP
ispiv-166	32	31	the	the	DET
ispiv-166	32	32	effective	effective	ADJ
ispiv-166	32	33	re	re	NOUN
ispiv-166	32	34	with	with	ADP
ispiv-166	32	35	a	a	DET
ispiv-166	32	36	closer	close	ADJ
ispiv-166	32	37	position	position	NOUN
ispiv-166	32	38	of	of	ADP
ispiv-166	32	39	stagnation	stagnation	NOUN
ispiv-166	32	40	point	point	NOUN
ispiv-166	32	41	.	.	PUNCT
ispiv-166	33	1	the	the	DET
ispiv-166	33	2	penetrating	penetrate	VERB
ispiv-166	33	3	flow	flow	NOUN
ispiv-166	33	4	also	also	ADV
ispiv-166	33	5	pushes	push	VERB
ispiv-166	33	6	the	the	DET
ispiv-166	33	7	stagnation	stagnation	NOUN
ispiv-166	33	8	point	point	NOUN
ispiv-166	33	9	’s	’s	PART
ispiv-166	33	10	position	position	NOUN
ispiv-166	33	11	away	away	ADV
ispiv-166	33	12	from	from	ADP
ispiv-166	33	13	the	the	DET
ispiv-166	33	14	porous	porous	ADJ
ispiv-166	33	15	sphere	sphere	NOUN
ispiv-166	33	16	,	,	PUNCT
ispiv-166	33	17	causing	cause	VERB
ispiv-166	33	18	farther	farth	ADJ
ispiv-166	33	19	stagnation	stagnation	NOUN
ispiv-166	33	20	points	point	NOUN
ispiv-166	33	21	.	.	PUNCT
ispiv-166	34	1	thus	thus	ADV
ispiv-166	34	2	,	,	PUNCT
ispiv-166	34	3	the	the	DET
ispiv-166	34	4	final	final	ADJ
ispiv-166	34	5	position	position	NOUN
ispiv-166	34	6	of	of	ADP
ispiv-166	34	7	stagnation	stagnation	NOUN
ispiv-166	34	8	points	point	NOUN
ispiv-166	34	9	are	be	AUX
ispiv-166	34	10	depended	depend	VERB
ispiv-166	34	11	on	on	ADP
ispiv-166	34	12	the	the	DET
ispiv-166	34	13	combination	combination	NOUN
ispiv-166	34	14	of	of	ADP
ispiv-166	34	15	the	the	DET
ispiv-166	34	16	above	above	ADJ
ispiv-166	34	17	two	two	NUM
ispiv-166	34	18	opposite	opposite	ADJ
ispiv-166	34	19	effects	effect	NOUN
ispiv-166	34	20	.	.	PUNCT
ispiv-166	35	1	it	it	PRON
ispiv-166	35	2	is	be	AUX
ispiv-166	35	3	also	also	ADV
ispiv-166	35	4	clear	clear	ADJ
ispiv-166	35	5	that	that	SCONJ
ispiv-166	35	6	positions	position	NOUN
ispiv-166	35	7	of	of	ADP
ispiv-166	35	8	stagnation	stagnation	NOUN
ispiv-166	35	9	points	point	NOUN
ispiv-166	35	10	are	be	AUX
ispiv-166	35	11	nearly	nearly	ADV
ispiv-166	35	12	proportional	proportional	ADJ
ispiv-166	35	13	to	to	ADP
ispiv-166	35	14	the	the	DET
ispiv-166	35	15	logarithm	logarithm	NOUN
ispiv-166	35	16	of	of	ADP
ispiv-166	35	17	re	re	NOUN
ispiv-166	35	18	for	for	ADP
ispiv-166	35	19	all	all	DET
ispiv-166	35	20	different	different	ADJ
ispiv-166	35	21	permeability	permeability	NOUN
ispiv-166	35	22	.	.	PUNCT
ispiv-166	36	1	acknowledgements	acknowledgement	NOUN
ispiv-166	36	2	this	this	DET
ispiv-166	36	3	work	work	NOUN
ispiv-166	36	4	was	be	AUX
ispiv-166	36	5	finished	finish	VERB
ispiv-166	36	6	in	in	ADP
ispiv-166	36	7	university	university	PROPN
ispiv-166	36	8	of	of	ADP
ispiv-166	36	9	alberta	alberta	PROPN
ispiv-166	36	10	,	,	PUNCT
ispiv-166	36	11	canada	canada	PROPN
ispiv-166	36	12	,	,	PUNCT
ispiv-166	36	13	supported	support	VERB
ispiv-166	36	14	from	from	ADP
ispiv-166	36	15	a	a	DET
ispiv-166	36	16	scholarship	scholarship	NOUN
ispiv-166	36	17	by	by	ADP
ispiv-166	36	18	the	the	DET
ispiv-166	36	19	university	university	PROPN
ispiv-166	36	20	of	of	ADP
ispiv-166	36	21	chinese	chinese	PROPN
ispiv-166	36	22	academy	academy	PROPN
ispiv-166	36	23	of	of	ADP
ispiv-166	36	24	sciences	sciences	PROPN
ispiv-166	36	25	,	,	PUNCT
ispiv-166	36	26	china	china	PROPN
ispiv-166	36	27	.	.	PUNCT
ispiv-166	37	1	references	reference	NOUN
ispiv-166	37	2	wittig	wittig	VERB
ispiv-166	37	3	k	k	NOUN
ispiv-166	37	4	,	,	PUNCT
ispiv-166	37	5	nikrityuk	nikrityuk	NOUN
ispiv-166	37	6	p	p	X
ispiv-166	37	7	,	,	PUNCT
ispiv-166	37	8	and	and	CCONJ
ispiv-166	37	9	richter	richter	PROPN
ispiv-166	37	10	a	a	PRON
ispiv-166	37	11	(	(	PUNCT
ispiv-166	37	12	2017	2017	NUM
ispiv-166	37	13	)	)	PUNCT
ispiv-166	37	14	drag	drag	NOUN
ispiv-166	37	15	coefficient	coefficient	NOUN
ispiv-166	37	16	and	and	CCONJ
ispiv-166	37	17	nusselt	nusselt	VERB
ispiv-166	37	18	number	number	NOUN
ispiv-166	37	19	for	for	ADP
ispiv-166	37	20	porous	porous	ADJ
ispiv-166	37	21	particles	particle	NOUN
ispiv-166	37	22	under	under	ADP
ispiv-166	37	23	laminar	laminar	ADJ
ispiv-166	37	24	flow	flow	NOUN
ispiv-166	37	25	conditions	condition	NOUN
ispiv-166	37	26	.	.	PUNCT
ispiv-166	38	1	international	international	ADJ
ispiv-166	38	2	journal	journal	PROPN
ispiv-166	38	3	of	of	ADP
ispiv-166	38	4	heat	heat	NOUN
ispiv-166	38	5	and	and	CCONJ
ispiv-166	38	6	mass	mass	NOUN
ispiv-166	38	7	transfer	transfer	NOUN
ispiv-166	38	8	112:1005–1016	112:1005–1016	NUM
ispiv-166	38	9	wu	wu	PROPN
ispiv-166	38	10	r	r	NOUN
ispiv-166	38	11	and	and	CCONJ
ispiv-166	38	12	lee	lee	PROPN
ispiv-166	38	13	d	d	PROPN
ispiv-166	38	14	(	(	PUNCT
ispiv-166	38	15	1999	1999	NUM
ispiv-166	38	16	)	)	PUNCT
ispiv-166	38	17	highly	highly	ADV
ispiv-166	38	18	porous	porous	ADJ
ispiv-166	38	19	sphere	sphere	NOUN
ispiv-166	38	20	moving	move	VERB
ispiv-166	38	21	through	through	ADP
ispiv-166	38	22	centerline	centerline	NOUN
ispiv-166	38	23	of	of	ADP
ispiv-166	38	24	circular	circular	ADJ
ispiv-166	38	25	tube	tube	NOUN
ispiv-166	38	26	filled	fill	VERB
ispiv-166	38	27	with	with	ADP
ispiv-166	38	28	newtonian	newtonian	ADJ
ispiv-166	38	29	fluid	fluid	NOUN
ispiv-166	38	30	.	.	PUNCT
ispiv-166	39	1	chemical	chemical	NOUN
ispiv-166	39	2	engineering	engineering	PROPN
ispiv-166	39	3	science	science	NOUN
ispiv-166	39	4	54:5717–5722	54:5717–5722	NUM
ispiv-166	39	5	yu	yu	PROPN
ispiv-166	39	6	p	p	PROPN
ispiv-166	39	7	,	,	PUNCT
ispiv-166	39	8	zeng	zeng	PROPN
ispiv-166	39	9	y	y	PROPN
ispiv-166	39	10	,	,	PUNCT
ispiv-166	39	11	lee	lee	PROPN
ispiv-166	39	12	t	t	PROPN
ispiv-166	39	13	,	,	PUNCT
ispiv-166	39	14	chen	chen	PROPN
ispiv-166	39	15	x	x	X
ispiv-166	39	16	,	,	PUNCT
ispiv-166	39	17	and	and	CCONJ
ispiv-166	39	18	low	low	ADJ
ispiv-166	39	19	h	h	NOUN
ispiv-166	39	20	(	(	PUNCT
ispiv-166	39	21	2012	2012	NUM
ispiv-166	39	22	)	)	PUNCT
ispiv-166	39	23	numerical	numerical	ADJ
ispiv-166	39	24	simulation	simulation	NOUN
ispiv-166	39	25	on	on	ADP
ispiv-166	39	26	steady	steady	ADJ
ispiv-166	39	27	flow	flow	NOUN
ispiv-166	39	28	around	around	ADV
ispiv-166	39	29	and	and	CCONJ
ispiv-166	39	30	through	through	ADP
ispiv-166	39	31	a	a	DET
ispiv-166	39	32	porous	porous	ADJ
ispiv-166	39	33	sphere	sphere	NOUN
ispiv-166	39	34	.	.	PUNCT
ispiv-166	40	1	international	international	ADJ
ispiv-166	40	2	journal	journal	PROPN
ispiv-166	40	3	of	of	ADP
ispiv-166	40	4	heat	heat	NOUN
ispiv-166	40	5	and	and	CCONJ
ispiv-166	40	6	fluid	fluid	ADJ
ispiv-166	40	7	flow	flow	NOUN
ispiv-166	40	8	36:142–152	36:142–152	NUM
ispiv-166	40	9	introduction	introduction	NOUN
ispiv-166	40	10	experimental	experimental	ADJ
ispiv-166	40	11	setup	setup	NOUN
ispiv-166	40	12	results	result	NOUN
ispiv-166	40	13	and	and	CCONJ
ispiv-166	40	14	discussion	discussion	NOUN