A hybrid collocation/Galerkin scheme for convective heat transfer problems with stochastic boundary conditions
A hybrid collocation/Galerkin scheme for convective heat transfer problems with stochastic boundary conditions
复制标题
随机边界条件对流传热问题的混合搭配/伽辽金方案
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
G. Iaccarino
中科院分区：
文献类型：
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作者：
P. Constantine;A. Doostan;G. Iaccarino
本文提出了一种数值方法来研究高雷诺数不可压缩圆柱绕流中的对流换热问题。我们利用能量和动量输运的单向耦合来导出半侵入式不确定性传播方案，该方案结合了Galerkin和配置方法来计算随机温度场的近似统计。与传统的不确定性传播格式相比，该混合格式收敛速度快，大大降低了总的计算成本。版权所有© 2009约翰威利父子有限公司。
We present a numerical method to study convective heat transfer in a high Reynolds number incompressible flow around a cylinder subject to uncertain boundary conditions. We exploit the one‐way coupling of the energy and momentum transport to derive a semi‐intrusive uncertainty propagation scheme, which combines Galerkin and collocation approaches for computing approximate statistics of the stochastic temperature field. The hybrid scheme converges rapidly and dramatically reduces the overall computational cost compared with the conventional uncertainty propagation schemes. Copyright © 2009 John Wiley & Sons, Ltd.