壁压法用于高速风洞大迎角实验力和力矩修正

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1996, Vol. 17 ›› Issue (3): 337-340.

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FORCES AND PITCHING MOMENT CORRECTION FOR HIGH ANGLE OF ATTACK TESTS IN HIGH SPEED WIND TUNNEL USING WALL SIGNATURE METHOD

Zhang Qiwei¹, Chen Zhen²

1. Dept.of Aerodynamics,Nanjing University of Aeronautics and Astronautics,Nanjing,210016;2. Shenyang Aerodynamics Research Institute, Shenyang, 110034

Received:1994-10-12 Revised:1995-03-27 Online:1996-06-25 Published:1996-06-25

Abstract

Abstract: An improved high speed wind tunnel wall signature method is used for a practical high blockage aircraft model test under the conditions of \%Ma\%≤0.9 and high angle of attack to calculate the wind tunnel interference effects on model aerodynamic forces and pitching moment.It takes the interference velocity undulation into account for the aerodynamic forces and pitching moment corrections to solve the difficult moment correction problem in high angle of attack tests.The tunnel interference effects are assessed and corrected using the measured tunnel wall pressure data,so the method can be applied to various ventilated or solid wall wind tunnels.

Key words: wind tunnel tests, wind tunnel walls, inter ference, data processing

CLC Number:

V211. 71

Zhang Qiwei;Chen Zhen. FORCES AND PITCHING MOMENT CORRECTION FOR HIGH ANGLE OF ATTACK TESTS IN HIGH SPEED WIND TUNNEL USING WALL SIGNATURE METHOD[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1996, 17(3): 337-340.

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FORCES AND PITCHING MOMENT CORRECTION FOR HIGH ANGLE OF ATTACK TESTS IN HIGH SPEED WIND TUNNEL USING WALL SIGNATURE METHOD

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