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HIGH SPEED FLOW FOR NACA0012 PROFILE


We present the inviscid high speed flow around NACA 0012 profile. We suppose the inlet Mach number 2.0 where the strong shock waves are presented. To solve the Euler equations we apply discretization by triangular vinite volumes. The anisotropic mesh adaptation was used for the mesh generation. The mesh adaptation was applied four times and the following table presents the successive results: isolines of Mach number and the corresponding meshes. The mesh refinement and mesh aligment along shock waves are observed. After last level af the mesh adaptation the shock waves are very sharp.

Triangulation - level 0, 1 020 elements Isolines of Mach number - level 0, CPU 246 s
Triangulation - level 1, 5 680 elements Isolines of Mach number - level 1, CPU 358 s
Triangulation - level 2, 23 778 elements Isolines of Mach number - level 2, CPU 1 028 s
Triangulation - level 3, 33 580 elements Isolines of Mach number - level 3, CPU 1 442 s
Triangulation - level 4, 33 542 elements Isolines of Mach number - level 4, CPU 1 387 s


COLOR figures:
0-th adaptation 1-st adaptation
2-nd adaptation 3-rd adaptation
4-th adaptation