Research on Operational Safety of Driving System of Continuous Transonic Wind Tunnel

doi:10.3969/j.issn.1000-1093.2016.07.023

Acta Armamentarii ›› 2016, Vol. 37 ›› Issue (7): 1330-1336.doi: 10.3969/j.issn.1000-1093.2016.07.023

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Research on Operational Safety of Driving System of Continuous Transonic Wind Tunnel

ZHANG Wen¹, ZHOU En-min^1,2, LIU Kai¹, CHENG Song¹, LIU Feng¹

(1.High Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang 621000, Sichuan, China;2.College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China)

Received:2015-06-09 Revised:2015-06-09 Online:2016-09-05
Contact: ZHANG Wen E-mail:myzwabc@163.com

Abstract

Abstract: In order to enhance the operational safety of driving system in continuous transonic wind tunnel, the effects of closed-circuit configuration on airflow temperature rise and wind tunnel tube pressure loss is analyzed based on construction, debugging and operation of 0.6 m×0.6 m continuous transonic wind tunnel. The safety features of shafting, surge and Mach number control for axial compressor used in wind tunnel are researched. The test results show that the performance of heat exchanger meets the requirement of axial compressor operation and total temperature in wind tunnel. The experimental basis of operation parameter alarm threshold values of axial compressor shafting and setting of anti-surge curves is achieved, and the critical speeds of torsional vibration are measured. The flow rate and pressure ratio at 100 kPa total pressure are used for the anti-surge curves of axial compressor, and Mach number can be controlled by the rotational speed of axial compressor and the position of mechanical central part.

Key words: aerocraft experimental technology, continuous transonic wind tunnel, operational safety, heat exchange, surge

CLC Number:

V211.74⁺1

ZHANG Wen, ZHOU En-min, LIU Kai, CHENG Song, LIU Feng. Research on Operational Safety of Driving System of Continuous Transonic Wind Tunnel[J]. Acta Armamentarii, 2016, 37(7): 1330-1336.

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Research on Operational Safety of Driving System of Continuous Transonic Wind Tunnel

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