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已知研究认为,相比冻结流动下的压力值,热化学非平衡条件下HB2模型扩张裙体部分压力的偏大是由黏性干扰引起的.研究探讨了黏性干扰和高温气体效应对HB2扩张裙体部分压力的影响规律.数值求解了有限速率的N-S方程,化学反应模型考虑了5种组分、17个基元反应,并采用Park T-Tv双温度模型求解.对比扩张裙体部分压力对黏性干扰和化学反应的敏感性发现,热化学反应流动中扩张裙体部分压力的偏大并非由黏性的改变引起,而是由化学反应所主导.对比流动各参量对压力的贡献值发现,压力上升速率增加主要来源于温度项的贡献.
It is known that compared with the pressure under freezing flow, the partial pressure of the skirt in HB2 model is unbalanced due to viscous interference under the condition of thermochemical non-equilibrium, and the effects of viscous interference and high temperature gas effect on HB2 The influence of pressure on the part of the skirt is expanded.The finite-rate NS equation is solved numerically.The chemical reaction model considers five components and 17 elementary reactions and is solved by Park T-Tv dual temperature model.Compared with the expansion skirt part The sensitivity of pressure to viscous interference and chemical reaction found that the partial pressure of dilatation skirt in thermochemical reaction flow is not caused by the change of viscous, but dominated by chemical reaction. The contribution of each parameter of flow to pressure It has been found that the increase of the rate of pressure increase mainly comes from the contribution of the temperature term.