22nd Congress of International Council of the Aeronautical Sciences, Harrogate, UK, 28 August - 1st September, 2000
Paper ICAS 2000-2.3.2

A SOLUTION ADAPTIVE GRID METHOD FOR CALCULATION OF HIGH SPEED FLOWS AROUND BLUNT BODY CONFIGURATIONS

A. R. Jahangirian
Amirkabir University of Technology, Iran

Keywords: adaptive grid, high speed flows, blunt body

Extension of a solution adaptive grid method to hypersonic flows is presented. Fully unstructured triangular grids are generated in an automatic manner and further refined by adapting to the flow features. Two-dimensional inviscid flow is simulated by numerical solution of Euler equations. A cell-centered finitevolume scheme is used and the steady state solution is obtained using an explicit multistage procedure, with standard convergence acceleration techniques such as local time stepping and residual smoothing. The method is applied for two standard blunt body configurations at Mach numbers of 8.15 and 15 and the results show the efficiency and accuracy of the procedure in predicting strong flow discontinuities compared with unadapted grid results.

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