id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
47429882s5v	Donald Wittich	Subsonic Flow over Open and Partially Covered, Rectangular Cavities	2009		.txt	text/plain	184	6	41	When the cavity was open, the well known Rossiter modes were excited, but when the cavity was partially covered, peak frequencies arose which were lower than the Rossiter modes for a cavity with the same opening length. Additionally, the acquisition of time-resolved schlieren images of the shear layer allowed the development of a novel form of schlieren velocimetry, which revealed that coherent optical structures in the shear layer traverse the length of the cavity at speeds lower than those presupposed by the Rossiter or long-path formulations.	cache/47429882s5v.txt	txt/47429882s5v.txt