id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
gs-278	Omar Lanchava; George Nozadze	PISTON EFFECT ANALYSIS FOR THE METRO VENTILATION	2021	14	.pdf	application/pdf	4682	220	51	If necessary, it is possible to define oncoming air flow speeds as well as air flow in annular space between the perimeters of tunnel and train. Based to the numerical modeling results, for the different scenarios of train speed and tunnel filling coefficients, some of which are represented in figures 2, 3 and 4, the process duration is divided into 2 phases.	cache/gs-278.pdf	txt/gs-278.txt