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Unknown patchField type characteristicWallPressure

Posted: Sat Jul 06, 2019 7:26 pm
by nic
Hello cfdOFoamers!

After successfully solved the elbow tutorial, I simply tried to switch from Incompressible to Compressible + high Mac number, but this lead to an early error (message below).

Any idea?
elbow_DP.FCStd
(28.76 KiB) Downloaded 42 times

Here is the Foam error message

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--> FOAM FATAL IO ERROR: 
Unknown patchField type characteristicWallPressure for patch type wall

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% apt-cache policy openfoam6                                                                             
openfoam6:
  Installé : 20190620
  Candidat : 20190620
 Table de version :
 *** 20190620 500
 

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OS: Ubuntu 18.10 (i3/i3)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.19.
Build type: Release
Python version: 3.6.8
Qt version: 5.11.1
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: French/Switzerland (fr_CH)

Re: Unknown patchField type characteristicWallPressure

Posted: Sat Jul 06, 2019 9:45 pm
by oliveroxtoby
nic wrote: Sat Jul 06, 2019 7:26 pm Hello cfdOFoamers!

After successfully solved the elbow tutorial, I simply tried to switch from Incompressible to Compressible + high Mac number, but this lead to an early error (message below).

Any idea?

elbow_DP.FCStd


Here is the Foam error message

Code: Select all

--> FOAM FATAL IO ERROR: 
Unknown patchField type characteristicWallPressure for patch type wall
For the moment unfortunately the potential flow initialisation does not work with the compressible solver. Please use specified values instead. Note that pressure must be an absolute pressure value (nonzero) unlike for incompressible flow (likewise for the pressure outlet).

Re: Unknown patchField type characteristicWallPressure

Posted: Sun Jul 07, 2019 11:42 am
by nic
Hi Oliver; thanks for the answer.

Just to be sure, it is also not supported at the moment to select "Compressible" and un-select "High Mach Number" ; is that correct ?