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Transactions: WSEAS TRANSACTIONS ON FLUID MECHANICS
Transactions ID Number: 31-810
Full Name: Seyed Saied Bahrainian
Position: Associate Professor
Age: ON
Sex: Male
Address: Department of Mechanical Engineering, Shahid Chamran University, Ahwaz, Iran
Country: IRAN
Tel: 0098 916 - 311 1316
Tel prefix:
Fax: 00986113336642
E-mail address: bahrainian@scu.ac.ir
Other E-mails: ar_daneh@yahoo.com
Title of the Paper: An unstructured grid generation approach for inviscid flow solutions
Authors as they appear in the Paper: Seyed Saied Bahrainian, Alireza Daneh Dezfuli
Email addresses of all the authors: bahrainian@scu.ac.ir,ar_daneh@yahoo.com
Number of paper pages: 10
Abstract: The unsteady and inviscid compressible flow around a circular cylinder and airfoil has been solved using a cell-centered finite volume method. A new algorithm for the generation of unstructured triangular grids was used to discretize the computational flow domain. Automatic grid generation, cell size distribution, and geometry treatment are some of the grid algorithm capabilities. Euler flow solutions have been obtained for subsonic and transonic flow conditions. The subsonic solution of flow around a circular cylinder grid verified the unstructured grid techniques, and was compared with an analytical solution. Transonic solution over the same grid fully converged after only 2791 iterations. The grid quality resulted in smooth pressure contours. Transonic flow solutions were also obtained for airfoil at free stream Mach number of 0.8 and attack angle of 1.25. The true position of the shock is illustrated in the pressure coefficient plots, and shows the shock captur!
ing capability of the solution method. The convergence history obtained, points to the accuracy of the numerical solution.
Keywords: Unsteady, Inviscid, Geometry Movement, Unstructured Grid, Edge Swapping
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