Aerodynamics of indirect thrust measurement by the impulse method |
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| Authors: | Cheng-Kang Wu Hai-Xing Wang Xian Meng Xi Chen Wen-Xia Pan |
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| Institution: | (1) Department of Aerospace and Mechanical Engineering, University of Southern California, Los Angeles, USA;(2) Present address: Department of Mechanical and Aeronautical Engineering, University of Pretoria, Pretoria, 0002, South Africa;(3) Department of Theoretical Ecology, Lund University, Ecology Building, 223 62 Lund, Sweden |
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| Abstract: | The aerodynamic aspects of indirect thrust measurement by the impulse method have been studied both experimentally and numerically.
The underlying basic aerodynamic principle is outlined, the phenomena in subsonic, supersonic and arc-heated jets are explored,
and factors affecting the accuracy of the method are studied and discussed. Results show that the impulse method is reliable
for indirect thrust measurement if certain basic requirements are met, and a simple guideline for its proper application is
given. |
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| Keywords: | Thrust measurement · Impulse method · Aerodynamic features · Cold jet · Arc-heated jet |
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