Time accurate consistently stabilized mesh-free methods for convection dominated problems

被引:12
作者
Huerta, A [1 ]
Fernández-Méndez, S [1 ]
机构
[1] Univ Politecn Catalunya, Dept Matemat Aplicada 3, ETS Ingn Caminos Canales & Puertos, E-08034 Barcelona, Spain
关键词
meshless; mesh-free; finite elements; convection-diffusion; transient; least-squares; streamline-upwind Petrov-Galerkin;
D O I
10.1002/nme.602
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The behaviour of high-order time stepping methods combined with mesh-free methods is studied for : the transient convection-diffusion equation. Particle methods, such as the element-free Galerkin (EFG) method, allow to easily increase the order of consistency and, thus, to formulate high-order schemes in space and time. Moreover, second derivatives of the EFG shape functions can be constructed with a low extra cost and are well defined, even for linear interpolation. Thus, consistent stabilization schemes can be considered without loss in the convergence rates. Copyright (C) 2003 John Wiley Sons, Ltd.
引用
收藏
页码:1225 / 1242
页数:18
相关论文
共 22 条
  • [1] Smoothing and accelerated computations in the element free Galerkin method
    Belytschko, T
    Krongauz, Y
    Fleming, M
    Organ, D
    Liu, WKS
    [J]. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, 1996, 74 (1-2) : 111 - 126
  • [2] ELEMENT-FREE GALERKIN METHODS
    BELYTSCHKO, T
    LU, YY
    GU, L
    [J]. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1994, 37 (02) : 229 - 256
  • [3] Meshless methods: An overview and recent developments
    Belytschko, T
    Krongauz, Y
    Organ, D
    Fleming, M
    Krysl, P
    [J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 1996, 139 (1-4) : 3 - 47
  • [4] Carey GF, 1998, INT J NUMER METH FL, V27, P97, DOI 10.1002/(SICI)1097-0363(199801)27:1/4<97::AID-FLD652>3.0.CO
  • [5] 2-2
  • [6] On stabilized finite element methods for linear systems of convection-diffusion-reaction equations
    Codina, R
    [J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2000, 188 (1-3) : 61 - 82
  • [7] AN ANALYSIS OF TIME DISCRETIZATION IN THE FINITE-ELEMENT SOLUTION OF HYPERBOLIC PROBLEMS
    DONEA, J
    QUARTAPELLE, L
    SELMIN, V
    [J]. JOURNAL OF COMPUTATIONAL PHYSICS, 1987, 70 (02) : 463 - 499
  • [8] High-order accurate time-stepping schemes for convection-diffusion problems
    Donea, J
    Roig, B
    Huerta, A
    [J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, 2000, 182 (3-4) : 249 - 275
  • [9] Huerta A, 2000, INT J NUMER METH ENG, V48, P1615, DOI 10.1002/1097-0207(20000820)48:11<1615::AID-NME883>3.0.CO
  • [10] 2-S