The design of total pressure control strategy for 0.6m continuous transonic wind tunnel

Li Zhuangsheng; Yang Pengcheng; Chen Dan; Zhang Yongshuang; Guo Shouchun; Chen Tianyi

doi:10.11729/syltlx20150129

Volume 30 Issue 4

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Li Zhuangsheng, Yang Pengcheng, Chen Dan, et al. The design of total pressure control strategy for 0.6m continuous transonic wind tunnel[J]. Journal of Experiments in Fluid Mechanics, 2016, 30(4): 87-92. doi: 10.11729/syltlx20150129

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The design of total pressure control strategy for 0.6m continuous transonic wind tunnel

doi: 10.11729/syltlx20150129

China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

Received Date: 2015-11-04
Rev Recd Date: 2016-03-25
Publish Date: 2016-08-25

Abstract

Abstract

The total pressure is one of the key indicators of the continuous tunnel control system, the control precision and speed of which are very important to improve the efficiency of wind tunnel test and reduce energy consumption. The 0.6m wind tunnel is the first domestic continuous transonic wind tunnel with the negative pressure test ability, which can provide lots of test conditions covering wide total pressures. Based on its pressure condition, the total pressure control strategy is designed, and the different control ways of valve combination are ascertained depending on the different pressure conditions. Meanwhile, the control algorithm of segmented parameters combining with the fuzzy PID is proposed, to improve the poor adaptability of fuzzy PID to the wide pressure range and multi-adjustment condition in continuous transonic wind tunnels. In our algorithm, the reasonable benchmark parameters P and I under the different segmentation interval due to the target total pressure should been determined firstly. Then it would been modified by fuzzy control algorithm. The result shows that the total pressure control accuracy is better than 0.1%, and the control strategy can adapt to the control requirement of different working conditions.
- continuous transonic wind tunnel,
- total pressure,
- control strategy,
- segmented variable parameter,
- fuzzy PID

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References(20)

References

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