结冰环境下结冰/除冰过程的气动参数测量实验技术

肖春华; 于昆龙; 陈辅政; 李明

doi:10.13224/j.cnki.jasp.2018.12.001

结冰环境下结冰/除冰过程的气动参数测量实验技术

doi: 10.13224/j.cnki.jasp.2018.12.001

1.
中国空气动力研究与发展中心空气动力学国家重点实验室，四川绵阳 621000
2.
中国空气动力研究与发展中心低速空气动力研究所，四川绵阳 621000

基金项目: 国家自然科学基金委员会资助面上项目（11572338）；国家重点基础研究计划（2015CB755804）

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出版历程
- 收稿日期: 2017-11-14
- 刊出日期: 2018-12-28

Test technique of aerodynamic parameters measurement during icing/de-icing process under icing environment

摘要

摘要: 采用结冰风洞实验方法，在0.3m×0.2m结冰风洞第二实验段对圆柱模型的结冰/除冰过程进行了气动参数测量实验。建立了电加热圆柱模型和适合低温高湿环境的五分量外式微量天平，获得了结冰气象环境下圆柱模型结冰/除冰过程的气动力/力矩随时间的变化规律。喷雾对载荷和动压的影响可以忽略，单位时间内模型受到喷雾的最大水平力、最大动压增量分别为0.6%和0.2%。基于结冰风洞低温高湿环境的测力实验技术可以捕捉结冰/除冰过程的气动力/力矩变化。结冰过程中，圆柱模型阻力系数随时间不断增大，呈现出近似线性增长趋势，而升力系数、俯仰力矩系数、偏航力矩系数、滚转力矩系数的变化可忽略不计。除冰过程中，前缘冰壳滑动改变了姿态，会造成阻力系数、偏航力矩系数、滚转力矩系数等迅速变化，其对气动性能的影响难以预测。
- 结冰风洞 /
- 除冰 /
- 电热 /
- 圆柱 /
- 气动参数 /
- 天平
Abstract: Aerodynamics parameters measurement of the cylinder was studied in the secondary test section of 0.3m×0.2m icing wind tunnel during icing/de-icing process. The electrothermal cylinder model and five-component external balance for low temperature and high humidity environment were established. The variation of aerodynamics force/moment on cylinder was studied during icing/de-icing process under icing meteorological environment. The influence of spraying on loading and dynamic pressure can be ignored. The increments of maximum horizontal force and dynamic pressure on cylinder in unit time were 0.6% and 0.2%, respectively. The aerodynamics force measurement technique for low temperature and high humidity environment can capture the variation of aerodynamics force/moment during icing/de-icing process. The variation of resistance coefficient of cylinder became larger and larger, showing an approximately linear increasing trend during icing process. And the variations of lift, pitching, yawing and rolling coefficient were small, which can be ignored. The ice shell slippage on the leading edge changed the position during de-icing process, resulting in the fast variation of resistance, yawing and rolling coefficient. Further it would bring about unpredictable influence on aerodynamics performance.
- icing wind tunnel /
- de-icing /
- electrothermal /
- cylinder /
- aerodynamic parameters /
- balance

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