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-   -   Total Pressure only increases (http://www.cfd-online.com/Forums/star-ccm/72577-total-pressure-only-increases.html)

Maddin February 10, 2010 13:10

Total Pressure only increases
 
I made a simple intercooler simulation.
The total pressure of inlet and outlet of the core (actually without porous medium) only increases and didn't get constant. But pressure drop is nearly constant.
K-Omega, steady - good poly mesh.
Temperatures etc. are constant, only pressure fools me.
The core is connected via 2 interfaces, total pressure report runs on the interfaces.

Somebody an idea? unsteady effects? faults in the report because of the interface?

Maddin February 10, 2010 13:28

Argh.. I think I found the error. The "old" ccm bug with interfaces.
I tried the other side of the interface and there the pressure seems to be constant - but I will test it.

Maddin February 11, 2010 05:12

No that wasn't the solution, same "trend"...

Maddin February 15, 2010 08:14

Problem solved, used coupled flow... don't know why I used the coupled but with segregated all is fine.


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