CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > OpenFOAM Meshing & Mesh Conversion

Material properties in multi region foam and refining mesh for each region

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

Reply
 
LinkBack Thread Tools Display Modes
Old   October 6, 2013, 21:20
Question Material properties in multi region foam and refining mesh for each region
  #1
Senior Member
 
Mominul MuKuT
Join Date: Mar 2009
Location: Bangladesh
Posts: 121
Rep Power: 8
mukut is on a distinguished road
Hello foamers!

I have modified the multi_region_heater tutorial and the final domain is as follows:


The regions are as follows:

Fluid/air:
Top air
Bottom air

Solid:
left solid as top electrode
right solid as lower electrode
heater as dielectric
inner elec as inner covered electrode

Problem#1:

How can I select material properties of each solid region? For example the electrode material is copper and dielectric material is kapton. How can I fix these material?

Problem#2:
In paraFoam, when I activate "include zones" then all above mentioned regions have been appeared in left column under Mesh Parts.

Innerelec region is created by me which was not included in original tutorial. As I create this new zone, so in system directory shall I make a folder name Innerelec manually as there are several folders for each default region created in original tutorial.

Actually after modifying the original domain I have found some more folders like as follows:

How can I identify those unwanted region as shown above domain2, domain3, domain4? In side of these three folders have two blank files name as fvScheme and fvsolution dict files only.

Problem#3:

How can I refine mesh size for each region?
mukut is offline   Reply With Quote

Old   October 7, 2013, 01:56
Default
  #2
Senior Member
 
Nima Sam
Join Date: Sep 2009
Location: Tehran, Iran
Posts: 1,123
Blog Entries: 1
Rep Power: 14
nimasam is on a distinguished road
Send a message via Yahoo to nimasam
#problem 1

in constant folder, in each zone folder there is a file name called thermophysicalProperties , you can assign material properties there

#problem 2
those folder names create by following command
Quote:
splitMeshRegions -cellZones -overwrite
in fact you should give your zone appropriate name, then splitMeshRegions creates those folder in 0, constant and system for the regions you introduced in topoSet

#problem 3
it can be done with following command:
Quote:
refineMesh -region yourRegionName -overwrite
__________________
Training Course on OpenFOAM at (http://www.isme.ir/)
My Weblog (http://openfoam.blogfa.com/)
nimasam is offline   Reply With Quote

Old   October 7, 2013, 02:08
Default
  #3
Senior Member
 
Mominul MuKuT
Join Date: Mar 2009
Location: Bangladesh
Posts: 121
Rep Power: 8
mukut is on a distinguished road
Thanks bro for your point by point reply. I am trying now... will update soon
mukut is offline   Reply With Quote

Reply

Tags
material constant, multi regions, openfoam, refine mesh, region meshing

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



All times are GMT -4. The time now is 05:15.