Volume 33 Issue 12
Dec.  2018
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Test technique of aerodynamic parameters measurement during icing/de-icing process under icing environment[J]. Journal of Aerospace Power, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.001
Citation: Test technique of aerodynamic parameters measurement during icing/de-icing process under icing environment[J]. Journal of Aerospace Power, 2018, 33(12). doi: 10.13224/j.cnki.jasp.2018.12.001

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

doi: 10.13224/j.cnki.jasp.2018.12.001
  • Received Date: 2017-11-14
  • Publish Date: 2018-12-28
  • 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.

     

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