id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ispiv-118	Klinner, Joachim; Voges, Melanie; Schroll, Michael; Bassetti, Alessandro; Willert, Christian	Time-resolved flow field investigation in an industrial centrifugal compressor application involving TR-PIV synchronized with unsteady pressure measurements	2021	10	.pdf	application/pdf	5119	183	49	Besides the challenging task to provide safer operation of the machine near surge in such experiments, advanced PIV methods in combination with unsteady pressure measurements can pro- vide important insights into the formation of stall cells and the interactions between pressure and velocity fluctuations as well as the propagation of aeroacoustic modes in the machine (cf. [ms] 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 C or r. co ef f. R Run 53 U - K2.1 U - K7 (a) 20 15 10 5 0 5 10 15 20 Lag [ms] 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 C or r. co ef f. R Run 100 U - K2.1 Uflt - K2.1 U - K7 Uflt - K7 (b) Figure 9: Cross-correlations of velocities of the inlet flow at location #1 (a) and the impeller exit flow at location #2 (b) at 100% speed ‘RI’ correlated with unsteady pressure signals on impeller casing entry at x/sm = 5% (K21) and immediately downstream of the rotor at x/sm = 110% (K7).	cache/ispiv-118.pdf	txt/ispiv-118.txt