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TECHNICAL PAPERS

Parallel Particle Simulation of the Near-Continuum Hypersonic Flows Over Compression Ramps

[+] Author and Article Information
J.-S. Wu, K.-C. Tseng

Department of Mechanical Engineering, National Chiao-Tung University, 1001 Ta-Hsueh Road, Hsinchu 30050, Taiwan

J. Fluids Eng 125(1), 181-188 (Jan 22, 2003) (8 pages) doi:10.1115/1.1523068 History: Received January 02, 2002; Revised August 20, 2002; Online January 22, 2003
Copyright © 2003 by ASME
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References

Figures

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Flow chart of the parallel DSMC method
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Cell renumbering scheme in the parallel DSMC method
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Mesh refinement scheme for unstructured triangular mesh
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Sketch of the two-dimensional hypersonic compression corner flow
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Unstructured adaptive mesh for case 5 (xr=71.4 mm, β=25 deg) (163,658 cells, 3 levels of mesh adaptation)
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Multilevel graph partition for case 5 (xr=71.4 mm, β=25 deg) (32 CPUs)
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Pressure coefficient distribution along the solid wall for β=15 deg, 25 deg, and 35 deg (case 1, Kn=0.0066)
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Shear stress coefficient distribution along the solid wall for β=15 deg, 25 deg, and 35 deg (case 1, Kn=0.0066)
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Heat transfer coefficient distribution along the solid wall for β=15 deg, 25 deg, and 35 deg (case 1, Kn=0.0066)
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Density contours at different freestream Knudsen number for β=15 deg (a) Kn=0.0066; (b) Kn=0.0032; (c) Kn=0.0022; (d) Kn=0.0010
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Streamline contours at different freestream Knudsen number for β=15 deg (a) Kn=0.0066; (b) Kn=0.0032; (c) Kn=0.0022; (d) Kn=0.0010
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Density contours at different freestream Knudsen number for β=35 deg (a) Kn=0.0066; (b) Kn=0.0032; (c) Kn=0.0022; (d) Kn=0.0010
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Streamline contours at different freestream Knudsen number for β=35 deg (a) Kn=0.0066; (b) Kn=0.0032; (c) Kn=0.0022; (d) Kn=0.0010
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Pressure coefficient distribution along the solid wall for β=15 deg, 25 deg, and 35 deg (case 4, Kn=0.0010)
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Density and streamline contours at β=35 deg (long ramp, case 5, Kn=0.0010)

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