Volume 35 Issue 10
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TAN Wenyuan, CAO Yihua. Simulation of flow field and calculation of safe operating envelope of shipborne helicopter based on chimera grid[J]. Journal of Aerospace Power, 2020, 35(10): 2166-2175. doi: 10.13224/j.cnki.jasp.2020.10.017
Citation: TAN Wenyuan, CAO Yihua. Simulation of flow field and calculation of safe operating envelope of shipborne helicopter based on chimera grid[J]. Journal of Aerospace Power, 2020, 35(10): 2166-2175. doi: 10.13224/j.cnki.jasp.2020.10.017

Simulation of flow field and calculation of safe operating envelope of shipborne helicopter based on chimera grid

doi: 10.13224/j.cnki.jasp.2020.10.017
  • Received Date: 2019-11-14
  • Publish Date: 2020-10-28
  • In order to ensure the shipboard helicopter safety, based on the chimera grid method, the flow field of CG-47 Ticonderoga class cruiser with UH-60 Black Hawk helicopter was simulated. The flow field of this combination under different wind direction angles and speed conditions was studied. The flight dynamics model was used to calculate manipulated variable and attitude angle. Finally, according to the safe landing criterion, the theoretical safe operating envelope of this combination was drawn. The results showed that the roll angle and periodic pitch control increased with the incoming velocity, while the pitching angle was affected by the incoming flow and the ship structure. The smaller wind direction angle meant the greater maximum landing speed. Generally, the left side speed was larger than the right side speed.

     

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