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Problem with axi-symmetric case using sonicFoam

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Old   April 16, 2010, 16:59
Default Problem with axi-symmetric case using sonicFoam
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Madhura
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Hello,

I am trying to simulate flow over a bump (subsonic, transonic, supersonic) with axi-symmetric geometry using sonicFoam solver.

The geometry with boundary types can be seen in the attached picture.

Velocity, pressure and temperature were specified at inlet. All variables were extrapolated (zero gradient) at outlet. Tried different conditions for axis (symmetryPlane, empty) and upperwall (wall, slip, symmetryPlane). But the results are somewhat like shown in attached files.

I have also tried this problem without axi-symmetric geometry (but with same BC) and it works fine. Please see results.

Could anybody help with the axi-symmetric geometry problem?

Thanks,
Madhura
Attached Images
File Type: jpg axisymm_bumper_geometry.jpg (96.5 KB, 10 views)
File Type: jpg axisymm_bumper_mach.jpg (18.0 KB, 9 views)
File Type: jpg axisymm_bumper_pressure.jpg (21.6 KB, 7 views)
File Type: jpg axisymm_bumper_velocity.jpg (22.1 KB, 9 views)
File Type: jpg supersonic_mach.jpg (37.3 KB, 9 views)
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