Simulation of bluff body stabilized flows with hybrid RANS and PDF method

Minming Zhu; Xingsi Han; Haiwen Ge; Yiliang Chen

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Simulation of bluff body stabilized flows with hybrid RANS and PDF method

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摘要

The motivation of this study is to investigate the turbulence-chemistry interactions by using probability density function (PDF) method. A consistent hybrid Reynolds Averaged Navier-Stokes (RANS)/PDF method is used to simulate the turbulent nonreacting and reacting flows. The joint fluctuating velocity-frequency-composition PDF equa-tion coupled with the Reynolds averaged density, momentum and energy equations are solved on unstructured meshes by the Lagrangian Monte Carlo (MC) method combined with the finite volume (FV) method. The simulation of the axi-symmetric bluff body stabilized non-reacting flow fields is presented in this paper. The calculated length of the recircu-lation zone is in good agreement with the experimental data.Moreover, the significant change of the flow pattern with the increase of thejet-to-coflow momentum flux ratio is well predicted. In addition, comparisons are made between the joint PDF model and two different Reynolds stress models.

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《力学学报：英文版》 |2007年第003期|263-273|共11页
作者
Minming Zhu; Xingsi Han; Haiwen Ge; Yiliang Chen;
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作者单位

Department of Thermal Science and Energy Engineering,University of Science and Technology of China, Hefei 230027, China;

Department of Thermal Science and Energy Engineering,University of Science and Technology of China, Hefei 230027, China;

Department of Thermal Science and Energy Engineering,University of Science and Technology of China, Hefei 230027, China;

Department of Thermal Science and Energy Engineering,University of Science and Technology of China, Hefei 230027, China;

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原文格式 PDF
正文语种 chi
中图分类力学;
关键词
Hybrid algorithm · Unstructured mesh · Finite volume method · PDF method ~ Bluff body stabilized flow;

机译：混合算法·非结构化网格·有限体积法·PDF方法〜钝体稳定流;

Simulation of bluff body stabilized flows with hybrid RANS and PDF method

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