| 一种基于多矩的有限体积浸入边界法 |
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| 引用本文： | 朱祥德,陈春刚,肖锋.一种基于多矩的有限体积浸入边界法[J].计算物理,2010,27(3):342-352. |
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| 作者姓名： | 朱祥德 陈春刚 肖锋 |
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| 作者单位： | 中国科学院力学研究所高温气体动力学重点实验室, 北京 100190 |
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| 基金项目： | 国家自然基金(10852001,10902116)资助项目 |
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| 摘 要： | 基于多矩VSIAM3格式及浸入边界法,提出一套在复杂计算区域内求解不可压缩流动的数值格式.不可压N-S方程使用VSIAM3格式进行离散,引入浸入边界法处理复杂、移动边界,使用虚拟网格方法计算动量方程修正项,同时还考虑了对连续方程的修正.使用标准算例对数值模式进行验证.
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| 关 键 词： | 多矩有限体积法 浸入边界法 虚拟网格法 不可压缩流 |
| 收稿时间： | 2009-02-13 |
| 修稿时间： | 2009-08-21 |
A Multi-moment Immersed-boundary Finite-volume Scheme |
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| ZHU Xiangde,CHEN Chungang,XIAO Feng.A Multi-moment Immersed-boundary Finite-volume Scheme[J].Chinese Journal of Computational Physics,2010,27(3):342-352. |
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| Authors: | ZHU Xiangde CHEN Chungang XIAO Feng |
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| Institution: | LHD, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | A numerical model for incompressible flows in complex geometries is proposed by using multi-moment VSIAM3 scheme and immersed boundary method.Incompressible N-S equations are discretised by VSIAM3 scheme and complex and moving boundaries are treated with immersed boundary method.Immersed-boundary source terms in momentum equations are effectively represented by an extrapolated velocity field in ghost cells across the interface.Continuity equation is modified to take into account effective fluxes in boundary... |
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| Keywords: | multi-moment finite volume method immersed boundary method ghost-cell method incompressible flows |
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