id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-6721	Hetyei, Csaba; Szlivka, Ferenc	COUNTER-ROTATING DUAL ROTOR WIND TURBINE LAYOUT OPTIMISATION	2021	8	.pdf	application/pdf	4146	260	55	The swept area for dual rotor wind turbines vary depending on the second turbine’s position, its value can be between S = π · r2 and S = 2 · π · r2 (r is the swept area’s radius). Wind turbines are no exception.	cache/ap-6721.pdf	txt/ap-6721.txt