Parametric Design of Static Tube for Long-Distance Outboard Precision Atmospheric Static Pressure Measurement

Abstract:

Trailing cone method is generally used for atmospheric pressure measurement among airspeed calibration, of which the accuracy is not high enough and the hysteresis error exists. So a long-distance outboard precision airspeed calibration method is put forward. This paper focuses on the study on parametric design of static tube which is the sensing element of the newmethod. The flow field of the static tube is simulated and analyzed to get position error curve in flight test environment by using Computational Fluid Dynamics (CFD) technology. Based on the simulation result and considering the impact of front and rear connectors, the main geometric paramters of static tube is determined and optimized. The calculation result indicates that, pressure coefficient C_p of the static tube is less than 0.0198.

• Periodical: Advanced Materials Research (Volume 904)
• Pages: 404-407
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.904.404
• Online since: March 2014
• Authors: Du Xi Liu, Sen Zhang*, Yun Long Zhu, Qiu Xia Qin
• Keywords: Airspeed Calibration, CFD, Parametric Design, Static Pressure Measurement

References

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