A New Formulation of the Model using Elliptic Blending and its Application to Heat Transfer Prediction
A New Formulation of the Model using Elliptic Blending and its Application to Heat Transfer Prediction
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椭圆混合模型的新表述及其在传热预测中的应用
DOI：
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发表时间：
2008
期刊：
影响因子：
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通讯作者：
D. Laurence
中科院分区：
文献类型：
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作者：
Juan Uribe Torres;F. Billard;J. Uribe;D. Laurence
！ v2 " f模型，它解决了通常在这些模型中出现的数值问题，而不会损失预测精度。该模型基于椭圆混合，与之前的“代码友好”模型不同，它正确地预测了近壁渐近行为，而不会损害其整体鲁棒性，这使其达到与工业应用中使用的大多数标准涡流粘度模型相同的稳定性水平。该模型在浮力强烈影响湍流状态及其各向异性的传热情况下进行了测试。研究了空气在受热无限管内和受热通道内向上流动的情况。不同的配方
! v 2 " f model that addresses numerical issues usually arising with such models without any loss in prediction accuracy. The model is based on elliptic blending, and unlike its “codefriendly” predecessors, it correctly predicts nearwall asymptotic behaviours without impairing its overall robustness, which brings it to the same level of stability as most standard eddy viscosity models used in industrial applications. The model is tested in cases featuring heat transfer when buoyant forces strongly influence the turbulence regime, and its anisotropy. The case of air flowing upwards inside a heated infinite pipe and a heated channel are studied. The different formulations of the