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appropriate BC - top half of the pipe

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Old   October 31, 2011, 11:50
Default appropriate BC - top half of the pipe
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Diego
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Hi,

Im simulating a pipe with a ke model, considering the top half of the pipe. My problem is with the boundary conditions. I set “velocity-inlet” and “pressure-outlet” for the inlet and outlet faces. What is the more appropriate BC for the symmetry plane? “symmetry” or “axis”? What is the difference?
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Old   November 2, 2011, 02:14
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Maxime Perelli
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*symmetry means symmetric with respect of a plane
*axis means revolution-axisymmetric with respect of an axis (solution theta-independant with theta: rotation-angle around your axis)

When you are using axis, you must work with 2d solver.
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Old   November 2, 2011, 08:03
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thank you very much!
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