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August 1, 2017, 01:28 |
parallel plate with narrow distance
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#1 |
Member
behrouz
Join Date: Mar 2015
Posts: 34
Rep Power: 11 |
hi to all
im try to simulate two parallel plate with small distance between them(distance=3 mm) as picture, upper plate have a Rectangular groove(T shape) on it,and move in teta-direction with 30 m/s speed(Ur=Uz=0 m/s).air inter form top and exit from bottom, boundary condition: inlet total pressure=60 bar exit static pressure=2 bar upper wall=no slip wall and teta-direction velocity=30 m/s (Ur=Uz=0) other wall= no slip stationary wall and rotational periodicity for left and right wall( walls are infinite in teta-direction) mesh quality is pretty good and max skewness=0.8 and average skewness=0.15 and flow is laminar, isothermal, ideal gas but.....!! when i start the solver ,some error occurred(pic 2) and solver stop, i try change local time scale,automatic time scale,physical time scale but error happen again, any idea,suggest,reference,would be nice thank you very much. Last edited by behrouz; August 2, 2017 at 01:01. |
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August 1, 2017, 08:27 |
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#2 |
Senior Member
Erik
Join Date: Feb 2011
Location: Earth (Land portion)
Posts: 1,167
Rep Power: 23 |
Translational periodicity???
Z direction??? Don't you need rotational periodicity and a cylindrical coordinate system? |
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August 2, 2017, 01:07 |
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#3 |
Member
behrouz
Join Date: Mar 2015
Posts: 34
Rep Power: 11 |
ok...........
Last edited by behrouz; August 3, 2017 at 07:47. |
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August 3, 2017, 07:45 |
what next?
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#4 | |
Member
behrouz
Join Date: Mar 2015
Posts: 34
Rep Power: 11 |
Quote:
thank you for your atention yes you right and i correct the coordinate system and rotational periodicity in my explain,in fact i use cylindrical coordinate and rotational periodicity and errors happen, so please have you any idea about it?? |
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