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| 引用本文： | 谭忠权,毛洁,刘克.�����������ֱ����ֵģ���о�[J].核聚变与等离子体物理,2016,36(4):309-314. |
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| 作者姓名： | 谭忠权 毛洁 刘克 |
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| 作者单位： | (1. ??????????????е???????????? 310018??2. ?????????????????????????????? 116024) |
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| 基金项目： | 国家自然科学基金(11375049)；国家磁约束核聚变能发展研究专项(2014GB125003) |
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| 摘 要： | 在开源的CFD工具包OpenFOAM环境下开发了基于低磁雷诺数的磁流体湍流数值模拟求解器，对2π×1×1的方管中无磁场湍流和磁流体湍流进行直接数值模拟研究，给出了截面瞬时速度、平均速度的分布，截面对称中心线上的脉动速度的均方根值、湍动能的分布。计算结果表明，外加磁场对磁流体湍流具有抑制作用和并且这种抑制作用具有各向异性。
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| 关 键 词： | 磁流体 湍流 直接数值模拟 OpenFOAM |
Direct numerical simulations of magnetohydrodynamics on turbulent duct flow |
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| TAN Zhong-quan,MAO Jie,LIU Ke.Direct numerical simulations of magnetohydrodynamics on turbulent duct flow[J].Nuclear Fusion and Plasma Physics,2016,36(4):309-314. |
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| Authors: | TAN Zhong-quan MAO Jie LIU Ke |
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| Institution: | (1. Hangzhou Dianzi University, School of Mechanical Engineering, Hangzhou 310018?? 2. Dalian University of Technology, School of Energy & Power Engineering, Dalian 116024) |
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| Abstract: | Magnetohydrodynamic turbulent flow solver with low magnetic Reynolds number was developed in open source CFD software toolbox of OpenFOAM. Hydrodynamic turbulent flow and magnetohydrodynamic turbulent flow in a 2π×1×1 square duct were simulated by the validated turbulent DNS solver. The distribution of instantaneous velocity, average velocity on the cross section, the root mean square value of the fluctuation velocity and the turbulent kinetic energy along bisector of the cross section were presented. The numerical results show that the applied external magnetic field has a suppression effect on MHD turbulent fluctuation. At the same time, the suppression effect is anisotropic. |
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| Keywords: | Magnetohydrodynamic flow Turbulent flow DNS OpenFOAM |
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