基于非结构化同位网格的SIMPLE算法
Implement of SIMPLE algorithm based on unstructured colocated meshes
查看参考文献18篇
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文摘
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通过基于非结构化网络的有限体积法对二维稳态Navier-Stokes方程进行了数值求解。其中对流项采用延迟修正的二阶格式进行离散；扩散项的离散采用二阶中心差分格式；对于压力-速度耦合利用SIMPLE算法进行处理；计算节点的布置采用同位网格技术，界面流速通过动量插值确定。本文对方腔驱动流、倾斜腔驱动流和圆柱外部绕流问题进行了计算，讨论了非结构化同位网格有限体积法在实现SIMPLE算法时，迭代次数与欠松弛系数的关系、不同网格情况的收敛性、同结构化网格的对比以及流场尾迹结构。通过和以往结果比较可知，本文的方法是准确和可信的。 |
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其他语种文摘
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An unstructured colocated meshes based on the finite volume method has been applied for numerical simulation of two-dimensional, steady, incompressible Navier-Stokes equations. The convective flux is evaluated using the second-order scheme with deferred correction. The diffusive flux is solved using central difference scheme. SIMPLE algorithm is adopted to deal with the pressure-velocity coupling. A colocated arrangement of variables is introduced on numerical grids, and the cell face velocities are calculated by the momentum interpolation. As test cases, a lid-driven flow> a skewed lid-driven flow and a laminar flow around a circular cylinder in a channel have been carried out to examine the accuracy of the implement of SIMPLE algorithm based on unstructured colocated grids. Numerical results include the relationship between outer iteration numbers and under-relaxation parameters, the convergence of different computational grids, the comparison with the situation of structure meshes, and the flow status. Comparison with the benchmark results shows that the present method is accurate and trus table. |
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来源
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计算力学学报
,2003,20(6):702-710 【核心库】
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关键词
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非结构化网格
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同位网格
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有限体积法
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SIMPLE算法
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地址
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中国科学院力学研究所, 北京, 100080
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-4708 |
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学科
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力学 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:1201891
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参考文献 共
18
共1页
|
|
1.
Darwish M S. A new-high resolution scheme basedon the normalized variable formulation[J].
Numer Heat Transfer, Part B,1993,24:353-371
|
被引
5
次
|
|
|
|
|
2.
Choi S K. three-dimensional numerical experiment[J].
Numer Heat Transfer, Part B,1995,28:23-28
|
被引
1
次
|
|
|
|
|
3.
Jasak H. High resolution NVD differencing scheme for arbitrarily unstructured meshes[J].
Int Jour Numer Methods Fluids,1999,31:431-449
|
被引
22
次
|
|
|
|
|
4.
Khosla P K. A diagonally dominant second-order accurate implicit scheme[J].
Comp Fluids,1974,2:207-209
|
被引
12
次
|
|
|
|
|
5.
Patankar S V. A calculation proced-ure for heat.
Int Jour Heat Mass Transfer,1972,15:1787-1806
|
被引
177
次
|
|
|
|
|
6.
Patankar S V. A calculation procedure for twod-imensional elliptic situations[J].
Numer Heat Transfer,1981,4:409-425
|
被引
28
次
|
|
|
|
|
7.
Van Doormaal J P. Enhancement of the SIMPLE method for predicting incompressible fluid flows[J].
Numer Heat Transfer,1984,7:147-163
|
被引
104
次
|
|
|
|
|
8.
Issa R I. Solution of the implicit discretized fluid-flow equations by operator spliting[J].
Jour Comp Phys,1986,62:40-65
|
被引
168
次
|
|
|
|
|
9.
Peric M. Comparison of finite-volume numerical methods with staggered and colocated grids[J].
Comp Fluids,1988,16:389-403
|
被引
15
次
|
|
|
|
|
10.
Ushijima S. Three-dimensional arbitrary lagrangian-eulerian numerical prediction method for non-linear free surface oscillation[J].
Int Jour Numer Mech Fluids,1998,26:605-623
|
被引
7
次
|
|
|
|
|
11.
Thakur S. Multiblock interface treatments in a pressure-based flow solver[J].
Numer Heat Transfer, Part B,1998,31:431-449
|
被引
1
次
|
|
|
|
|
12.
Mathur S R. A pressure-based method for unstructured meshes[J].
Numer Heat Transfer,1997,31:195-215
|
被引
19
次
|
|
|
|
|
13.
Weatherill N P. Efficient three-dimensional delaunay triangulation with automatic point creation and imposed boundary constraints[J].
Int Jour Numer Methods Eng,1994,37:2005-2039
|
被引
28
次
|
|
|
|
|
14.
Subramanian G. Robust boundary triangulation and Delaunay triangulation of arbitrary planar domains[J].
Int Jour Numer Methods Eng,1994,37:1779-1789
|
被引
4
次
|
|
|
|
|
15.
Li P W. Numerical and experimental investigations on heat/mass transfer of slot-jet impingement in a rectangular cavity[J].
Int Jour Heat Fluid Flow,1993,14(3):246-253
|
被引
3
次
|
|
|
|
|
16.
Ghia U. High re-solutions for incompressible flow using the Navier-Stokes equations and a multigrid method[J].
Jour Comp Phys,1982,48:387-411
|
被引
200
次
|
|
|
|
|
17.
Demirdzic I. bench-mark solutions[J].
Int Jour Numer Meth Fluids,1992,15:329-354
|
被引
13
次
|
|
|
|
|
18.
Braza M. Numerical study and physical analysis of the pressure and velocity fields in the near wake of a circular cylinder.
Jour Fluid Mech,1986,165:79-130
|
被引
42
次
|
|
|
|
|
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