CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

Problem with units for additional variable

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   July 14, 2014, 12:44
Default Problem with units for additional variable
  #1
Member
 
Hai Yu
Join Date: Mar 2009
Location: Harbin
Posts: 67
Rep Power: 9
yuhai is on a distinguished road
Good day!
I have written a short fortran code, and linked as a user function, the name is "asource", then I use it as source for an additional variable with name "HL", the variable is dimensionless.

if i write the Source as "asource", then i have error report:
Bad expression value 'asource' detected in parameter 'Source' in object '/FLOW:Flow Analysis 1/DOMAIN:circ/SUBDOMAIN:Subdomain 1/SOURCES/EQUATION SOURCE:HL'.
CEL error:
The following unrecognised name was referenced: asource.

if i write the source as "asource(1[])", then i have error report:
Expression resolves to invalid units ('dimensionless') in value set for parameter 'Source' in object '/FLOW:Flow Analysis 1/DOMAIN:circ/SUBDOMAIN:Subdomain 1/SOURCES/EQUATION SOURCE:HL'. Expected units: 'kg m^-3 s^-1'.

and if i write the source as "asource (1[kg m^-3 s^-1])", then i have error report:
Bad expression value 'asource (1[kg m^-3 s^-1])' detected in parameter 'Source' in object '/FLOW:Flow Analysis 1/DOMAIN:circ/SUBDOMAIN:Subdomain 1/SOURCES/EQUATION SOURCE:HL'.
CEL error:
The dimensions of the argument to function 'asource' are inconsistent with expected dimensions.
Argument dimensions resolve to 'kg m^-3 s^-1'; expected '<dimensionless>'.


I just have no idea how to give the expression for the source item.
Very thankful for any suggestion.
yuhai is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
problem in using of additional variable in wall velocity adsladsl CFX 10 May 31, 2015 19:29
OpenFoam-1.6-ext Allwmake compilation error - one last barrier Pat84 OpenFOAM Installation 15 July 25, 2012 21:49
Problem installing on 64bit with ver13 jonititan OpenFOAM Installation 5 May 12, 2006 18:42
Problem installing on 64bit with ver13 jonititan OpenFOAM Installation 0 April 28, 2006 05:45
Replace periodic by inlet-outlet pair lego CFX 3 November 5, 2002 21:09


All times are GMT -4. The time now is 08:13.