| 用贴体正交曲线网格求解二维复杂几何域对流扩散问题 |
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| 引用本文： | 陈汉平.用贴体正交曲线网格求解二维复杂几何域对流扩散问题[J].上海交通大学学报,1989(5). |
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| 作者姓名： | 陈汉平 |
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| 作者单位： | 上海交通大学动力机械工程系 |
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| 摘 要： | 文章结合有限差分法和边界元法的优点,利用贴体正交曲线网格和有限控制体积积分来分析二维复杂几何域对流扩散问题.叙述了构作贴体正交网格的边界元技术,推导了通用微分方程形式下粘性可压缩层流流动动量方程和紊流流动时均动量方程的源项表达式,给出了曲壁通道内紊流流场的计算实例和实验测量结果.
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| 关 键 词： | 贴体正交网格 正交曲线坐标 对流扩散问题 数值分析 |
A Solution of Convection and Diffusion Based on Body Fitted Curvi-Linear Orthogonal Mesh |
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| Chen Hanping.A Solution of Convection and Diffusion Based on Body Fitted Curvi-Linear Orthogonal Mesh[J].Journal of Shanghai Jiaotong University,1989(5). |
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| Authors: | Chen Hanping |
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| Institution: | Chen Hanping |
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| Abstract: | The paper attempts combine the advantages of finite difference withthose of the boundary element method to solve two dimensional convection anddiffusion problems in an irregular geometric domain.The computation isbased on control-volume formulation and on a body-fitted curvi-linear orthog-onal mesh.The boundary element technique generating the ortnogonal meshis described.The source terms of the momentum equation for laminar flow andthe time-averaged momentum equation for turbulent flow are derived in curvi-linear orthogonal coordinates.As an example,the numerical analysis and theexperimental measurement of a turbulent flow in a curvi-wall passage are given. |
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| Keywords: | body fitted orthogonal mesh orthogonal curvi-linear coordinates convection and diffusion numerical analysis |
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