Experimental study on droplet size measurement and control of icing cloud in icing wind tunnel

Guo Long; Cheng Yao; Wang Zixu

doi:10.11729/syltlx20170096

Volume 32 Issue 2

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Guo Long, Cheng Yao, Wang Zixu. Experimental study on droplet size measurement and control of icing cloud in icing wind tunnel[J]. Journal of Experiments in Fluid Mechanics, 2018, 32(2): 55-60. doi: 10.11729/syltlx20170096

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Experimental study on droplet size measurement and control of icing cloud in icing wind tunnel

doi: 10.11729/syltlx20170096

Guo Long^{1
,
,},
Cheng Yao²,
Wang Zixu²

1.
Northwestern Polytechnical University, Xi'an 710072, China
2.
China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

Received Date: 2017-08-04
Rev Recd Date: 2017-10-09
Publish Date: 2018-04-25

Abstract

Abstract

Accurately measuring and controlling the droplet size is important for icing wind tunnel tests. To study droplet characteristics and its effects in the 3m×2m icing wind tunnel, a PDI-FP (Phase Doppler Interferometer Flight Probe)system is used for the MVD (Median Volume Diameter) measurement and control test, and the effect factors such as pressure, airspeed, and temperature are analyzed. The experimental results show that there are sensitive relationships between the droplet size and spray air/water pressures. The MVD is inversely proportional to the spray air pressure. The air speed and temperature don't have impact on MVD obviously with the maximum deviation less than ±10%. The MVD is significantly reduced by applying negative pressure.
- icing wind tunnel,
- spray system,
- cloud parameters,
- droplet,
- evaporation,
- environment pressure

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References(18)

References

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