Numerical solvers for radiation and conduction in high temperature gas flows

Seaid  M; Klar  A; Pinnau  R

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Numerical solvers for radiation and conduction in high temperature gas flows

机译：Numerical solvers for radiation and conduction in high temperature gas flows

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In this paper, the authors introduce a robust numerical technique for radiation-conduction heat transfer in the high temperature fields of gas turbine combustors. The conduction and radiation effects are analyzed by a differential and an integral equation, respectively. Using discrete ordinates for the angular discretization of the integral equation for the radiation effects and a Galerkin discretization for the heat equation, the authors propose a fast multilevel algorithm to solve the fully discretized problem. The algorithm uses the same mesh hierarchy for both radiation and conduction effects, but with two different smoothing operators. Numerical results are shown for test problems in three space dimensions, and comparisons to other methods are also given.

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来源
《Flow, turbulence and combustion》 |2005年第4期|173-190|共18页
作者
Seaid M; Klar A; Pinnau R;
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作者单位

Tech Univ Darmstadt, Fachbereich Math, D-64289 Darmstadt, Germany;

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原文格式 PDF
正文语种英语
中图分类力学;
关键词
radiation-conduction heat transfer; discrete ordinates; Galerkin method; multilevel algorithms; DISCRETE ORDINATES METHOD; RECTANGULAR FURNACES; ALGORITHM; EQUATIONS; SYSTEMS; MODELS; FLUX;

Numerical solvers for radiation and conduction in high temperature gas flows

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