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Continuum Simulation of Hypersonic Flows using the Quantum-Kinetic Chemical Reaction Model

机译:利用量子动力学化学反应模型连续模拟高超音速流

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The Quantum-Kinetic (Q-K) chemical reaction model is implemented in a Navier-Stokes solver, US3D, and tested on the Bow Shock Ultra Violet flight experiments. The chemical reaction rates predicted by the Q-K model are compared to a commonly used Park model for flows in thermal non-equilibrium. The results show that in thermal equilibrium the reaction rates between these two models are comparable. The Q-K model predicts greater rates for some chemical reactions and lesser rates for other reactions in an five species air chemistry model. In thermal non-equilibrium, the Q-K model maintains comparable rates near thermal equilibrium, while avoiding issues of strong thermal non-equilibrium seen in the Park model.The application of the Q-K model to the Bow Shock Ultra Violet flight experiments show that the model remains consistent with previous Navier-Stokes and DSMC computations over altitudes ranging from 53.5 km up to 87.5 km despite the enforcement of translational-rotational equilibrium. The commonly used Park model was unable to match this performance.
机译:量子动力学(Q-K)化学反应模型是在Navier-Stokes求解器US3D中实现的,并在Bow Shock紫外线飞行实验中进行了测试。将Q-K模型预测的化学反应速率与热非平衡流动中常用的Park模型进行比较。结果表明,在热平衡下,这两个模型之间的反应速率是可比的。在五种空气化学模型中,Q-K模型预测某些化学反应的速率较高,而其他反应的速率较低。在热不平衡中,QK模型保持接近热平衡的可比速率,同时避免了Park模型中出现的强烈的热不平衡问题.QK模型在Bow Shock紫外线飞行实验中的应用表明该模型仍然存在尽管执行了平移-旋转平衡,但与先前的Navier-Stokes和DSMC计算在53.5 km至87.5 km的高度上保持一致。常用的Park模型无法达到此性能。

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