Development of near-space-vehicle anemometer and calibration tests in low-temperature-low-static-pressure wind tunnel

Zhang Shiyu; Fu Zengliang; Zhao Junbo; Gao Qing; Qian Er

doi:10.11729/syltlx20160137

Volume 31 Issue 2

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Journal of Experiments in Fluid Mechanics > 2017 > 31(2): 81-85, 103. > DOI: 10.11729/syltlx20160137

Zhang Shiyu, Fu Zengliang, Zhao Junbo, Gao Qing, Qian Er. Development of near-space-vehicle anemometer and calibration tests in low-temperature-low-static-pressure wind tunnel[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(2): 81-85, 103. DOI: 10.11729/syltlx20160137

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Development of near-space-vehicle anemometer and calibration tests in low-temperature-low-static-pressure wind tunnel

1.
China Academy of Aerospace Aerodynamics, Beijing 100074, China
2.
The 21 th Research Institute of China Electronics Technology Group Corporation, Shanghai 200233, China

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Received Date: September 05, 2016
Revised Date: January 08, 2017

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Abstract

A new kind of anemometer to measure the air speed of the near-space low speed vehicle is introduced in this paper. This equipment is designed based on the theory that rotating the measuring arms increases the acquired dynamic pressure. Benefitted from this theory, the anemometer can measure the wind speed with reasonable precision in situations of ultralow dynamic pressure in the near space environment. A series of tests are completed in the near-space environment simulation wind tunnel in the 21th Research Institute of CETC, whose inflow air speed is available from 5 to 14 meters per second. The results show that the measured dynamic pressure curves are coincident with the sine function curves and there is a significant linear correlation between the amplitude of the dynamic pressure and the inflow airspeed. Based on the linear fit method, a calibration model of the anemometer is established.
- near space,
- wind speed measuring,
- near-space environment simulation wind tunnel,
- wind tunnel test

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