Volume 36 Issue 6
Jun.  2021
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YANG Guang, TAN Meijing, NIE Chunsheng, YAN Hao, LI Yu, ZHOU Yu, CAO Zhanwei. Effect on heating environment of ablation recession in plate-rudder interaction region[J]. Journal of Aerospace Power, 2021, 36(6): 1145-1155. doi: 10.13224/j.cnki.jasp.2021.06.003
Citation: YANG Guang, TAN Meijing, NIE Chunsheng, YAN Hao, LI Yu, ZHOU Yu, CAO Zhanwei. Effect on heating environment of ablation recession in plate-rudder interaction region[J]. Journal of Aerospace Power, 2021, 36(6): 1145-1155. doi: 10.13224/j.cnki.jasp.2021.06.003

Effect on heating environment of ablation recession in plate-rudder interaction region

doi: 10.13224/j.cnki.jasp.2021.06.003
  • Received Date: 2020-09-17
  • Publish Date: 2021-06-28
  • The effect of the ablation recession on the heat flux near a rudder gap interaction region was studied. High temperature thermal-chemical non-equilibrium numerical simulation was conducted for a plate-rudder configuration under typical hypersonic flow condition. The flow and aeroheating mechanism was analyzed for the rudder gap interaction region. The shape change caused by ablation recession was modeled and its effect on the flow structure and aeroheating mechanism was studied. Results indicated that the ablation recession changed the pressure distribution in the interaction region and decreased the spanwise pressure gradient, which inhibited the thickness reduction of the boundary layer by the cross-flow, and led to decrease of the heat flux in the interaction region. This heat flux decrease value was intensified as the ablation recession depth increased, which can reach 28.9% at a 5 mm recession depth.

     

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