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Authors: Xiyuan Li 1 ; Xiaofang Yin 1 ; Qinghua Gao 1 ; Qiong Li 1 and Jing Wang 2

Affiliations: 1 Beijing Institute of Spacecraft Environment Engineering, China ; 2 College of Bioresources Chemical and Material Engineering, Shaanxi University of Science and Technology, China

Keyword(s): Low pressure, CFD, Hot bulb anemometer, Convection heat transfer

Abstract: In the Mars exploration, the atmosphere and wind speed on the surface of Mars result in the difference in heat transfer between Mars rover and general earth orbit spacecraft. In addition to solar radiation and infrared radiation, surface heat conduction and convection heat transfer of the atmosphere are the primary heat transfer forms on the surface of Mars. In order to correct the thermal model of Mars rover and verify the ability of thermal control system to maintain the system at working temperature under extreme thermal environment, the low pressure and wind speed environment of Mars surface should be simulated in the Mars rover test. Therefore, the wind speed should be measured on multiple positions in the thermal test under low pressure. The dynamic, thermal and ultrasonic anemometers have the problems such as small signal, low precision and need to be recalibrated under low pressure. A numerical simulation model for constant heat flow hot bulb anemometer under low pressure has been established by CFD method. The response characteristics at low pressure are analyzed by the model. A test system was built in space environment simulation chamber to verify the simulation. Test and CFD method reach a similar result, which proves the validity of the analysis. (More)

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Paper citation in several formats:
Li, X., Yin, X., Gao, Q., Li, Q. and Wang, J. (2018). Simulation Research on Hot Bulb Anemometer Under Low Pressure. In 3rd International Conference on Electromechanical Control Technology and Transportation - ICECTT; ISBN 978-989-758-312-4, SciTePress, pages 487-491. DOI: 10.5220/0006973004870491

@conference{icectt18,
author={Xiyuan Li and Xiaofang Yin and Qinghua Gao and Qiong Li and Jing Wang},
title={Simulation Research on Hot Bulb Anemometer Under Low Pressure},
booktitle={3rd International Conference on Electromechanical Control Technology and Transportation - ICECTT},
year={2018},
pages={487-491},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006973004870491},
isbn={978-989-758-312-4},
}

TY - CONF

JO - 3rd International Conference on Electromechanical Control Technology and Transportation - ICECTT
TI - Simulation Research on Hot Bulb Anemometer Under Low Pressure
SN - 978-989-758-312-4
AU - Li, X.
AU - Yin, X.
AU - Gao, Q.
AU - Li, Q.
AU - Wang, J.
PY - 2018
SP - 487
EP - 491
DO - 10.5220/0006973004870491
PB - SciTePress

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