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四边形网格     
相关语句
  quadrilateral mesh
    All quadrilateral mesh automatic generation for regular quadric surfaces based on Auto CAD AME
    基于Auto CAD AME的规则二次曲面壳的全四边形网格自动剖分
短句来源
    An Unstructured Automatic Quadrilateral Mesh Generation on Arbitrary Geometry
    一类非结构任意四边形网格自动生成
短句来源
    Quadrilateral Mesh Generation Based on Features
    基于特征的四边形网格生成
短句来源
    Automatic quadrilateral mesh generation for planar regions
    平面区域四边形网格自动生成技术
短句来源
    Basic Area Linking Method on Quadrilateral Mesh Generation
    四边形网格生成的基区拼合法
短句来源
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  quadrilateral meshes
    Mixed Adjustment Method for Quadrilateral Meshes Cutted by a Line
    四边形网格被直线切割的混合调整法
短句来源
    1. By construction of quasi-Wilson element on referenceelement, we prove that the resulting elements pass through Irons? patch test for arbitrary narrow quadrilateral meshes.
    1.通过参考元上Wilson元的构造,证明了由此产生的有限元对任意窄四边形网格剖分通过Irons分片检查。
短句来源
    Then quadrilateral meshes will be generated around them using Paving methods to guarantee the quality of the meshes around them, and they won't be deleted during the generation of the quadrilateral mesh as well.
    然后用Paving方法在特征附近生成一圈四边形网格,从而不但可以使得它们在四边形网格的生成过程中不会被删除,而且可以保证它们周围的四边形网格的质量。
短句来源
    In this paper, two new nonconforming arbitrary quadrilateral elements MD61 and MD62 are constructed by using the analysis technique of specht element. It is proved that these elements pass through Irons patch test and the generalized patch test for arbitrary quadrilateral meshes. The convergence behavior is similar to Wilson elements and like Wilson elements.
    利用分析specht元的技巧,构造了两种非协调任意凸四边形单元MD61及MD62,证明了由此产生的有限元对任意四边形网格通过Irons分片检查和广义分片检查,其形状函数不依赖于单元本身.理论精度同Wilson元及类Wilson元.数值计算的结果表明,MD61元的整体效果好于Wilson元及类Wilson元;
短句来源
    In this paper,a kind of nonconforming quadrilateral elements is presented by adding a nonconforming high order term to Q 4 element. The authors prove that these elements pass through Irons' patch test and the generalized patch test for arbitrary quadrilateral meshes. The choice of shape functions is independent of the elements geometrical parameters.
    通过对Q4元增加一个非协调高阶项,构造了一类新的非协调四边形单元,并证明由此产生的单元对任意四边形网格通过Irons分片检查和广义分片检查,且形状函数不依赖于单元本身.QM5是其中的一个特例.数值结果表明,该类单元有很好的收敛效果.
短句来源
  quadrilateral grids
    An Algebraic Multigrid Method on Anisotropic Quadrilateral Grids and a Two-grid Discretization Method for Coupled System of Partial Differential Equations
    一类各向异性四边形网格下的代数多重网格法和一类耦合偏微分方程组的两层网格离散方法
短句来源
    In the first part, for a kind of isotropic elliptic boundary value problems, we are concerned with the joint adaptation of the anisotropic quadrilateral grids and the algebraic multigrid(AMG) solver. We find that the pure AMG methods are less efficient for some classical anisotropic quadrilateral grids. Furthermore, we design a new AMG method by an effective use of geometric information and analytic properties of underlying differential equation.
    第一部分针对椭圆问题的双线性有限元方程,研究了几种具有代表性的复杂各向异性四边形网格对纯代数多重网格(pure AMG)法的影响,并通过利用问题以及网格的部分几何和分析信息,设计了一种新的AMG法。
短句来源
    The Friedrichs Lax Scheme is extended to arbitrary quadrilateral grids. during itaration process the streamline positions are computed from streamline equation after the velocity field is obtained. Finally,the high resolution results obtained by the method are shown.
    FriedrichsLax格式推广到任意四边形网格,在迭代过程中得到速度场后,从流线方程计算流线的位置,最后算出由本方法得到高分辨率结果
短句来源
  quadrilateral elements
    Two algorithms for generating quadrilateral elements
    有限元四边形网格划分的两种算法
短句来源
    The dissertation presents a quadrilateral mesh generation algorithm-domain decomposition algorithm-for finite element method, the algorithm is based on a recursive decomposition of the domain into quadrilateral elements.
    本文论述了一种用于有限元计算的四边形网格生成算法—区域递归分解算法,其基本思想是将几何区域递归地分解成一系列四边形单元。
短句来源
    In this paper, two new nonconforming arbitrary quadrilateral elements MD61 and MD62 are constructed by using the analysis technique of specht element. It is proved that these elements pass through Irons patch test and the generalized patch test for arbitrary quadrilateral meshes. The convergence behavior is similar to Wilson elements and like Wilson elements.
    利用分析specht元的技巧,构造了两种非协调任意凸四边形单元MD61及MD62,证明了由此产生的有限元对任意四边形网格通过Irons分片检查和广义分片检查,其形状函数不依赖于单元本身.理论精度同Wilson元及类Wilson元.数值计算的结果表明,MD61元的整体效果好于Wilson元及类Wilson元;
短句来源
    Using the analysis techniques of specht elements, a class of new nonconforming quadrilateral elements is presented. It is proved that these elements have the similar convergence behavior to that of Wilson element. QP6 element is special of our elements.
    利用分析specht元的技巧,构造了一类新的非协调四边形单元,并证明由此产生的有限元对任意四边形网格收敛且效果同Wilson元.QP6元是其中的特例
短句来源
    In this paper,a kind of nonconforming quadrilateral elements is presented by adding a nonconforming high order term to Q 4 element. The authors prove that these elements pass through Irons' patch test and the generalized patch test for arbitrary quadrilateral meshes. The choice of shape functions is independent of the elements geometrical parameters.
    通过对Q4元增加一个非协调高阶项,构造了一类新的非协调四边形单元,并证明由此产生的单元对任意四边形网格通过Irons分片检查和广义分片检查,且形状函数不依赖于单元本身.QM5是其中的一个特例.数值结果表明,该类单元有很好的收敛效果.
短句来源
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  quadrilateral mesh
We present a simple, effective and computationally efficient approach for quadrilateral mesh adaptation.
      
Feature based quadrilateral mesh generation for sculptured surface products
      
By introducing the variable-node elements, which have physical mid-side nodes, some difficulties associated with connecting the different layer patterns, which are common in the adaptive h-refinement on quadrilateral mesh, can be overcome.
      
Rational bicubic simple quadrilateral mesh surfaces
      
Closed, smooth, piecewise bicubic surfaces, defined on simple quadrilateral mesh.
      
更多          
  quadrilateral meshes
The multigrid method of Wilson element on arbitrary quadrilateral meshes with two new variational formulations
      
In this paper, we shall give two new variational formulations for Wilson element on arbitrary quadrilateral meshes.
      
Then we give the optimal approximation error and the consistency error estimates under the anisotropic affine quadrilateral meshes.
      
Convergence of the nonconforming Wilson element for arbitrary quadrilateral meshes
      
It is shown that the Patch Test is satisfied and that stresses and displacements are respectively first and second order accurate for arbitrary quadrilateral meshes.
      
更多          
  quadrilateral grids
We verify that the convergence rate was between first and second order on the arbitrary quadrilateral grids and demonstrate robustness of the method in numerical examples.
      
This paper establishes the convergence of a multi point flux approximation control volume method on rough quadrilateral grids.
      
By rough grids we refer to a family of refined quadrilateral grids where the cells are not required to approach parallelograms in the asymptotic limit.
      
We discuss discrete formulations of the maximum principle and derive sufficient criteria for discrete monotonicity for arbitrary nine-point control-volume discretizations for conforming quadrilateral grids in 2D.
      
Concerning arbitrary quadrilateral grids, we show that only methods with parallelogram-like finite volume cells lead to a multi-symplectic discretization; i.e., to a method that preserves a discrete conservation law of symplecticity.
      
更多          
  quadrilateral elements
A series of 4-node and 8-node quadrilateral elements are derived and examined.
      
On the error estimate of h-convergence in quadrilateral elements
      
A comparative study on the h-convergence of 4-node and 8-node quadrilateral elements
      
The present paper is mainly concerned theoretically with the comparative study on h-convergence of 4-node versus 8-node quadrilateral elements.
      
It is found by the present authors that 8-node quadrilateral elements provided favourably enhances convergence rate over the 4-node ones.
      
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