用改进的高勇湍流模型对三角形圆柱绕流的数值研究

Proceedings 2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC) Pub Date : 2013-12-01 DOI:10.1109/MEC.2013.6885553

He Dong, Zhiqiang Li, G. Gao, Zhong Shi

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引用次数: 0

摘要

采用基于单侧统计平均法的改进的高勇湍流模型，模拟了三角圆柱的非定常流场。本文所采用的数值模拟方法是一种非结构化交错网格格式。计算结果表明，修正后的高勇湍流模型能够较好地模拟旋涡脱落特性。Strouhal数和时均速度曲线也比高勇湍流模型更符合实验结果。

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Numerical investigation of flow around a triangle cylinder using a modified Gao-Yong turbulence model

The unsteady flow around a triangle cylinder was simulated using a modified Gao-Yong turbulence model based on the unilateral statistical average method. The numerical method used in this simulation is an unstructured staggered mesh scheme. The computational results show that the modified Gao-Yong turbulence model can successfully simulate vortex shedding characteristics. The Strouhal number and time-averaged velocity profiles also agree better with experiments than that of the original Gao-Yong turbulence model.

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Proceedings 2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC)

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