CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM > OpenFOAM Running, Solving & CFD

Continuity error closed volume fluid OpenFOAM 8

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   August 8, 2020, 05:27
Default Continuity error closed volume fluid OpenFOAM 8
  #1
New Member
 
José Ángel
Join Date: Jan 2016
Posts: 3
Rep Power: 10
josemm92 is on a distinguished road
Hi users,


I am analyzing heat transfer in a multiregional model (singleFluidCHT), where the fluid domain is closed, that is, I have no inlet or outlet.


I have started to use OpenFoam 8 because in this new version it is possible to define viscosity and thermal conductivity vs temperature through tabulated data. Additionally, version 8 has moved from solving enthalpy to energy for solids.


Please find attached the pressure, velocity and temperature boundary condition files used for the fluid region.


p.c

U.c

T.c


These boundary conditions work fine in v7. However in v8 I get the continuity error.


Selection_004.png


Any advice or recommendation?


Thanks in advance

Best regards
josemm92 is offline   Reply With Quote

Old   August 9, 2020, 07:13
Smile Solution
  #2
New Member
 
José Ángel
Join Date: Jan 2016
Posts: 3
Rep Power: 10
josemm92 is on a distinguished road
Hi everybody,


Finally, the issue was not in the boundary conditions as I believed, but in the application of gravitational acceleration.


I have solved the problem by neglecting the force of gravity on the fluid (air). Which in my case is admissible since it is a MRF study.

Regards
josemm92 is offline   Reply With Quote

Reply

Tags
chtmultiregion, closed fluid, continuity error, openfoam 8

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[solidMechanics] Support thread for "Solid Mechanics Solvers added to OpenFOAM Extend" bigphil OpenFOAM CC Toolkits for Fluid-Structure Interaction 686 December 22, 2022 09:10
how to set periodic boundary conditions Ganesh FLUENT 15 November 18, 2020 06:09
OpenFOAM v3.0+ ?? SBusch OpenFOAM 22 December 26, 2016 14:24
Floating point exception error lpz_michele OpenFOAM Running, Solving & CFD 53 October 19, 2015 02:50
Terrible Mistake In Fluid Dynamics History Abhi Main CFD Forum 12 July 8, 2002 09:11


All times are GMT -4. The time now is 22:39.