[Other] nonrectangular fields

basiratshamsa · November 19, 2014, 10:00

Dear friends

I am trying to make a 2 phase model in openfoam towphase solver. in fields that i have in my problem , i have non rectangular regions. can you help me how can i define this regions in setfields file?

thanks

cutter · November 20, 2014, 04:01

Hi,

please be more specific. What's non-rectangular in your case?!

Maybe these pages might help:

http://www.cfd-online.com/Forums/ope...setfields.html
https://openfoamwiki.net/index.php/C...funkySetFields

Cutter

basiratshamsa · November 20, 2014, 10:47

Dear Cutter

thanks for your replay. in a rectangular channel i have a trapezoidal trench of sand, for making trapezoidal zoom of sand i do not know how use shapetocell command in setFields file.

regards

cutter · November 20, 2014, 11:16

Hi,

ok, this is a fairly simple geometric shape, but it isn't one of the standard shapes.

I have done something like this before, but couldn't find the case yet (probably on another machine). Here are the basic steps:

1. create the mesh of your channel

2. create a STL geometry of your trapezoidal using your favourite CAD program (Salome for example)

3. use the STL to create a cell set using surfaceToCell in topoSet, see https://github.com/OpenFOAM/OpenFOAM...et/topoSetDict

4. reference the the cell set using zoneToCell within the setFieldsDict, http://www.cfd-online.com/Forums/ope...setfields.html

Good luck!
Cutter

November 19, 2014, 10:00	nonrectangular fields	#1
basiratshamsa New Member Join Date: Aug 2013 Posts: 5 Rep Power: 12	Dear friends I am trying to make a 2 phase model in openfoam towphase solver. in fields that i have in my problem , i have non rectangular regions. can you help me how can i define this regions in setfields file? thanks

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[mesh manipulation] Importing Multiple Meshes	thomasnwalshiii	OpenFOAM Meshing & Mesh Conversion	18	December 19, 2015 18:57
multiphaseEulerFoam: efficient way of implementing fields for all phases	maybee	OpenFOAM Programming & Development	0	January 23, 2014 04:16
a reconstructPar issue	immortality	OpenFOAM Post-Processing	8	June 16, 2013 11:25
an odd(at least for me!) reconstructPar error on a field	immortality	OpenFOAM Running, Solving & CFD	3	June 3, 2013 22:36
PostChannel	maka	OpenFOAM Post-Processing	5	July 22, 2009 09:15

November 20, 2014, 04:01		#2
cutter Senior Member Join Date: Mar 2010 Location: Germany Posts: 154 Rep Power: 16	Hi, please be more specific. What's non-rectangular in your case?! Maybe these pages might help: http://www.cfd-online.com/Forums/ope...setfields.html https://openfoamwiki.net/index.php/C...funkySetFields Cutter

November 20, 2014, 10:47		#3
basiratshamsa New Member Join Date: Aug 2013 Posts: 5 Rep Power: 12	Dear Cutter thanks for your replay. in a rectangular channel i have a trapezoidal trench of sand, for making trapezoidal zoom of sand i do not know how use shapetocell command in setFields file. regards

November 20, 2014, 11:16		#4
cutter Senior Member Join Date: Mar 2010 Location: Germany Posts: 154 Rep Power: 16	Hi, ok, this is a fairly simple geometric shape, but it isn't one of the standard shapes. I have done something like this before, but couldn't find the case yet (probably on another machine). Here are the basic steps: 1. create the mesh of your channel 2. create a STL geometry of your trapezoidal using your favourite CAD program (Salome for example) 3. use the STL to create a cell set using surfaceToCell in topoSet, see https://github.com/OpenFOAM/OpenFOAM...et/topoSetDict 4. reference the the cell set using zoneToCell within the setFieldsDict, http://www.cfd-online.com/Forums/ope...setfields.html Good luck! Cutter