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首页> 外文期刊>Journal of Spacecraft and Rockets >Loose-Coupling Algorithm for Simulating Hypersonic Flows with Radiation and Ablation
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Loose-Coupling Algorithm for Simulating Hypersonic Flows with Radiation and Ablation

机译：具有辐射和烧蚀的高超声速流的松耦合算法

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摘要

Aprocedure has been developed to couple a hypersonic reacting flowmodel, a radiative heat transfermodel, and ansurface ablation model to study the surface heat transfer and surface ablation rate of atmospheric reentry vehicles.nThe two-way loose-coupling algorithm is described for each of the models, as is the solution procedure to achievenconvergence. Observations on the challenges of the loose-coupling strategy are given. Representative results arenpresented for two-dimensional benchmark examples and for three-dimensional flow at an angle of attack past ansymmetric capsule based on the Crew Exploration Vehicle reentry vehicle. Effects due to the interaction withnradiation and ablation are shown for two quantities of interest: the predicted peak surface heat flux and the ablationnrate on the vehicle heat shield. Uncertain parameters are identified in each of the submodels, and a preliminarynparameter sensitivity study is carried out by varying these values to examine their effects on the heat transfer andnablation rates in the coupled problem.
机译：已经开发了一种程序来耦合高超声速反应流模型，辐射传热模型和表面消融模型，以研究大气再入飞行器的表面传热和表面消融速率。n为每种模型描述了双向松耦合算法，这是实现融合的解决方案。给出了松耦合策略挑战的观察。代表代表性的结果是针对二维基准示例和基于Crew Exploration Vehicle再入运载工具的非对称胶囊经过攻角的三维流场的。对于两个感兴趣的量，显示了由于与辐射和烧蚀的相互作用而产生的影响：预测的峰值表面热通量和车辆隔热板上的烧蚀。在每个子模型中都确定了不确定的参数，并通过改变这些值来进行初步的参数敏感性研究，以检查它们对耦合问题中传热和消融速率的影响。

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