Study of Rate of Convergence of different types of Grids in CFD Analysis
Pages : 520-524, DOI:http://Dx.Doi.Org/10.14741/Ijcet/Spl.2.2014.98
This paper deals with nonlinear FVM approach based on different kinds of meshing (using grids-C,O,H ).Theory is utilized to obtain the convergence rate, CPU time, coefficient of drag, coefficient of lift, lift/drag of the airfoil(NACA-0012). The airfoil considered is studied with three different types of grids viz. O-grid, C-grid and H-grid and accordingly obtain the values of pressure, velocity and temperature. Airfoil is studied with two different flow regimes (i.e., 0.8M & 1.2M). A Finite discretization is applied throughout the process in case of gridding. The computational method does not require any tuning of parameters. The solution obtained shows the good resolution of all flow phenomenon and are obtained by computational analysis.
Keywords: Convergence, Airfoil, Descretization, Continuum, Flow separation, Flow regimes.
Article published in International Conference on Advances in Mechanical Sciences 2014, Special Issue-2 (Feb 2014)