Volume 26 Issue 2
Feb.  2000
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WANG Ping, ZHU Zi-qiang. Generation of the 2D Unstructured Grids and the Euler Solution on It[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(2): 190-193. (in Chinese)
Citation: WANG Ping, ZHU Zi-qiang. Generation of the 2D Unstructured Grids and the Euler Solution on It[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(2): 190-193. (in Chinese)

Generation of the 2D Unstructured Grids and the Euler Solution on It

  • Received Date: 14 Oct 1998
  • Publish Date: 29 Feb 2000
  • Computational unstructured grid is generated by advancing front method, and the structured background gird is obtained by using multigrid technique to solve the Poisson equation. A new method of boundary discretization is presented for generating the initial fronts, and a novel data structure—Array Linked List is proposed to store the grid data. The Euler equations on unstructured grid are solved by cell-centered scheme of finite volume method. Numerical examples show that the correlation of the computational results with experimental data is favorable and the need of N-S equations solver is obvious for both case of airfoil in transonic flow and multi-element airfoil in subsonic flow.

     

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  • [1] Weatherill N P. A method for generating irregular computational grids in multiply connected planar domains[J]. Int J of Numerical Meth in Fluids, 1988,8(2):181~197. [2]Lohner R, Parikh P. Generation of three-dimensional unstructured grids by the advancing front method[J]. Int J of Numerical Meth in Fluids, 1988, 8(10):1135~1149. [3]Pirzadeh S. Structured background grids for generation of unstructured grids by advancing-front method[J]. AIAA Journal, 1993, 31(2):257~265. [4]徐孝凯.数据结构简明教程[M]. 北京:清华大学出版社,1995. [5]Mavriplis D J. Three dimensional unstructured multigrid for the Euler equations . AIAA-91-1549,1991. [6]孙少鹏,杨乍生.非结构网格生成技术研究[J].空气动力学学报,1996,14(1):19~25. [7]Stolcis L, Johnston L J. Solution of the Euler equations on unstructured grids for two dimensional compressible flow[J]. Aeronautical Journal, 1990,94(936):181~195. [8]Cook P H, Mcdonald M A, Fireman M C P. Experimental data base for computers program assessment . AGARD-AR-138,1979.
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