SUPG stabilization parameters calculated from the quadrature-point components of the element-level matrices

J. Ed Akin, Tayfun E. Tezduyar

研究成果: Paper

抜粋

We investigate, for linear and higher-order elements, various ways of calculating the advective limit of the stabilization parameter ("τ") used in the streamline-upwind/Petrov-Galerkin (SUPG) formulation of flow problems. In the context of a pure advection test problem, we compare the "UGN-based" and element-matrix-based calculations and the calculations from the quadrature-point components of the element-level matrices. Our investigation shows that the performances of all three definitions are comparable, with the element-based definitions yielding somewhat lower τ values and the quadrature-point-based definitions somewhat higher. We also show that for both the element-based and quadrature-point-based definitions, as the polynomial orders increase, the τ values decrease, as they should.

元の言語English
出版物ステータスPublished - 2004 12 1
イベントEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 - Jyvaskyla, Finland
継続期間: 2004 7 242004 7 28

Conference

ConferenceEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004
Finland
Jyvaskyla
期間04/7/2404/7/28

    フィンガープリント

ASJC Scopus subject areas

  • Artificial Intelligence
  • Applied Mathematics

これを引用

Akin, J. E., & Tezduyar, T. E. (2004). SUPG stabilization parameters calculated from the quadrature-point components of the element-level matrices. 論文発表場所 European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyvaskyla, Finland.