Unknown patchField type characteristicWallPressure

A subforum specific to the development of the OpenFoam-based workbenches ( Cfd https://github.com/qingfengxia/Cfd and CfdOF https://github.com/jaheyns/CfdOF )

Moderator: oliveroxtoby

nic
Posts: 18
Joined: Thu Apr 18, 2019 1:14 pm
Location: France

Unknown patchField type characteristicWallPressure

Postby nic » 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
(28.76 KiB) Downloaded 11 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)
User avatar
oliveroxtoby
Posts: 322
Joined: Fri Dec 23, 2016 9:43 am
Location: South Africa

Re: Unknown patchField type characteristicWallPressure

Postby oliveroxtoby » Sat Jul 06, 2019 9:45 pm

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).
Please provide all the information requested in this post before reporting problems with CfdOF.
nic
Posts: 18
Joined: Thu Apr 18, 2019 1:14 pm
Location: France

Re: Unknown patchField type characteristicWallPressure

Postby nic » Sun Jul 07, 2019 11:42 am

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 ?