IMECH-IR  > 流固耦合系统力学重点实验室
Alternative TitleNumerical simulation for 2-D flows over a cube or a cylinder and moving boundary problems based on adaptive Cartesian grid with a gridless method
李现今; 杨国伟
Source Publication振动与冲击
Other AbstractA quadtree-based adaptive Cartesian grid generation and a flow solver for 2-D flow of Navier-Stokes equations and solutions to Euler equation with a moving boundary were developed . The grid adaptation based on pressure or density gradient was performed and a gridless or meshless method based on the least-square fashion was used to treat a wall surface boundary condition handled difficulty with a common Cartesian grid. Firstly, to validate the technique of grid adaptation, the flows over a cube were computed. Secondly, the flows over a cylinder were calculated to validate the developed gridless method. Thirdly, Euler solutions of Naca0012 wing under three working cases were solved and computed with moving grid with gridless method. The computational results indicated the developed methods are reasonable for complex flows. So these methods provides a new idea to simulate flows over objects with complex geometric shepes using more reasonable distribution of grids and easier boundary treatment.
KeywordCartesian网格 无网格法 动边界 数值模拟
Subject Area计算流体力学
Indexed ByEI ; CSCD
Funding Organization国家“九七三”计划项目(2011CB711100);国家科技支撑计划项目(2009BAG12A03)资助
Citation statistics
Document Type期刊论文
Corresponding Author李现今
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GB/T 7714
李现今,杨国伟. Cartesian网格结合无网格法处理的二维柱体绕流及动边界问题数值模拟[J]. 振动与冲击,2013,32(8):134-142.
APA 李现今,&杨国伟.(2013).Cartesian网格结合无网格法处理的二维柱体绕流及动边界问题数值模拟.振动与冲击,32(8),134-142.
MLA 李现今,et al."Cartesian网格结合无网格法处理的二维柱体绕流及动边界问题数值模拟".振动与冲击 32.8(2013):134-142.
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