Volume 31 Issue 05
May  2005
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Yuan Lingshuang, Li Yunze, Wang Junet al. Pressure characteristics and control method of wind tunnel for sand and dust test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(05): 592-594. (in Chinese)
Citation: Yuan Lingshuang, Li Yunze, Wang Junet al. Pressure characteristics and control method of wind tunnel for sand and dust test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(05): 592-594. (in Chinese)

Pressure characteristics and control method of wind tunnel for sand and dust test

  • Received Date: 09 Apr 2004
  • Publish Date: 31 May 2005
  • Pressure adjustment of wind tunnel for sand and dust test is different from general circumfluent one. In order to determine characteristics of pressure variation, dynamic model for controlling-pressure point, testing port andinjecting-sand-and-dust port was established, by the means of lumped parameter method(LPM) with physical analysis and simplification. Control method was offered according to the model. The rule that different disturbance effects on pressure distribution was observed, and control system of wind tunnel for sand and dust test was studied by the means of simulation. The results are satisfied. This work is important to optimize the configuration of the wind tunnel and to enhance its ability of sustaining pressure and is significant to ascertain the control precision for each component of the wind tunnel.

     

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