大迎角细长旋成体绕流结构演变过程实验研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2003, Vol. 24 ›› Issue (6): 503-506.

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Experimental Study of the Evolutionary Process of the Flowfield Around Slender Body at High Angle of Attack

LIU Pei-qing, SHAO Yan-feng, DENG Xue-ying, MA Yu

Fluid Mechanics Institute; Beijing University of Aeronautics and Astronautics; Beijng100083; China

Received:2002-11-13 Revised:2003-03-01 Online:2003-12-25 Published:2003-12-25

Abstract

Abstract: Based on v isualizing and tr acking t he flow by smoke stream and surface pr essure measurement, the entire process o f t he flow behavior around a slender og ive cylinder at angles of at tack from 0°to 90°is observ ed and analy zed systematically. It is found that in the exper iment, at various angles of attack, the structur e of the flowfieldaround the slender body is differ ent and the r ange of the angles of attack invo lved by the evolvement process is small.The evolvement pro cess can mainly be finished in a small rang e of angles of attack.

Key words: slender body, asymmetric vortices, high angle of attack, flow visualization, unsteady character

CLC Number:

V211.7

LIU Pei-qing;SHAO Yan-feng;DENG Xue-ying;MA Yu. Experimental Study of the Evolutionary Process of the Flowfield Around Slender Body at High Angle of Attack[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2003, 24(6): 503-506.

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Experimental Study of the Evolutionary Process of the Flowfield Around Slender Body at High Angle of Attack

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