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Forum: OpenFOAM

February 19, 2013, 03:12

Replies: 15

Supersonic flow with rhoCentralFoam

Views: 3,860

Posted By anishtain4

read a book like the one by anderson in gas...

read a book like the one by anderson in gas dynamic

Forum: OpenFOAM

February 1, 2013, 04:23

Replies: 15

Supersonic flow with rhoCentralFoam

Views: 3,860

Posted By anishtain4

this error means a variable is being out of range...

this error means a variable is being out of range (divide by zero, or negative in sqrt, etc) and this usually happens when the physical modelling collapses. To see what is wrong set very small time...

Forum: OpenFOAM

January 31, 2013, 14:31

Replies: 15

Supersonic flow with rhoCentralFoam

Views: 3,860

Posted By anishtain4

Check the courant number, it's a matter of wave...

Check the courant number, it's a matter of wave propagation, you may play with some stuff to hinder it but if you set the case in a manner that leads to it, it will be inevitable.

Forum: OpenFOAM

January 31, 2013, 11:09

Replies: 15

Supersonic flow with rhoCentralFoam

Views: 3,860

Posted By anishtain4

I believe rhoCentralFoam uses absolute pressure...

I believe rhoCentralFoam uses absolute pressure in the thermophysical model, so when you set it to zero it is just physically meaningless to it.

and by the way, in my personal experience...

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