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"High Mach Number flow exists"--tho i m running the sim at 5m/s. |
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August 13, 2018, 07:09 |
vortex problem
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#21 |
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Shahzad
Join Date: Jul 2018
Posts: 22
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hello sir,
does this vortex problem affects the results? thank you |
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August 13, 2018, 10:12 |
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#22 |
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Join Date: Jul 2009
Posts: 616
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Yes, that's why there is a warning.
Some result parameters might not be affected but others are. For example, the pressure opening is defined with a specific pressure and temperature. That temperature is only valid if there is an inflow, then this temperature is used for the inflow. If you have heated air leaving the pressure opening but cooler air coming in through it due to the vortex in the opening, then the average air temperature at the opening will be lower as the vortex causes this issue. Regards, Boris |
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August 14, 2018, 03:02 |
supersonic flow problem
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#23 |
New Member
Shahzad
Join Date: Jul 2018
Posts: 22
Rep Power: 8 |
hello sir ,
you helped me alot sir in my project . does supersonic flow problem depends on my boundary conditions ? sometimes there is no this warning at some specific values as i am increasing flow rate or rpm ,this problem appears . please suggest me how to get rid of this problem , as i think this is last problem which iam facing. Thanks |
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August 17, 2018, 09:01 |
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#24 |
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Posts: 616
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You don't need to worry about the high mach number option in your case. This is still good.
Reason is that the low compressible solver works good enough for a certain range over Mach 1-2. Which method did you use, sliding or averaging? Boris |
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August 18, 2018, 00:25 |
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#25 |
New Member
Shahzad
Join Date: Jul 2018
Posts: 22
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hello sir ,
iam using averaging method |
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August 30, 2018, 07:23 |
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#26 |
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Join Date: Jul 2009
Posts: 616
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Ok, then this should work just fine as it is.
Regards, Boris |
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Tags |
flow 3d, flow around a cylinder, flow over airfoil |
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