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1篇 您的检索式：作者名="Zihai Geng"

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		题名	作者	年代	出处	被引量
	1	On Aircraft Lift and Drag Reduction Using V Shaped Riblets显示文摘Reducing drag during take-off and nominal(cruise)conditions is a problem of fundamental importance in aeronautical engineering.Existing studies have demonstrated that v-shaped symmetrical riblets can effectively be used for turbulence control,with those with dimensionless depth h+=15 and dimensionless width s+=15 having the best drag reduction effect.In the present study,experimental tests have been conducted considering two models of the same size,one with smooth surface,the other with v-shaped riblets of the h+=15 and s+=15 type.The results show that for an angle of attack in the 8°~20°range(take-off stage),the maximum lift coefficient can be increased by 22%.For angle of attack between 8°and 14°,a drag reduction effect can be produced using riblets,which increases with the Reynolds number,leading to a decrease in the drag coefficient maximum of 36%.Flow visualization experiments have been carried out by means of Laser Induced fluorescence.	Zihai Geng Jinsheng Cai Yubiao Jiang Weiguo Zhang	2021	Fluid Dynamics & Materials Processing2021，17，5：	0

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