Mesh refinement with interFoam = solution that does no physical sense

lyna · January 19, 2016, 04:07

Hello
I have a problem in the mesh refinement.
I have a gas-liquid annular flow. the interface between the two fluids is thick (large), I want to reduce that by refining the mesh interface (r = 1e-3 micon) in this part of the canal, unfortunately when I refine my mesh I have a solution that does no physical sense !!!!!! I say do, help me please!!!!!!!!

thank you

Saideep · January 19, 2016, 09:29

It is probably caused due to spurious currents. This is a severe problem with interfoam. Some researchers says after a certain level of mesh refinement, the impact of these currents increase in which case the results get worser. That could be the case probably.

-Saideep

lyna · January 19, 2016, 11:05

thank you

is what's in interFoam another method for localization of the interface, which is more accurate.

Lyna

January 19, 2016, 04:07	Mesh refinement with interFoam = solution that does no physical sense	#1
lyna Member lynda Join Date: Oct 2009 Posts: 52 Rep Power: 16	Hello I have a problem in the mesh refinement. I have a gas-liquid annular flow. the interface between the two fluids is thick (large), I want to reduce that by refining the mesh interface (r = 1e-3 micon) in this part of the canal, unfortunately when I refine my mesh I have a solution that does no physical sense !!!!!! I say do, help me please!!!!!!!! thank you

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[snappyHexMesh] Error snappyhexmesh - Multiple outside loops	avinashjagdale	OpenFOAM Meshing & Mesh Conversion	53	March 8, 2019 09:42
[snappyHexMesh] No layers in a small gap	bobburnquist	OpenFOAM Meshing & Mesh Conversion	6	August 26, 2015 09:38
[snappyHexMesh] snappyHexMesh & Mesh around a missile	sasanghomi	OpenFOAM Meshing & Mesh Conversion	2	October 15, 2014 19:54
[Gmsh] 2D Mesh Generation Tutorial for GMSH	aeroslacker	OpenFOAM Meshing & Mesh Conversion	12	January 19, 2012 03:52
[snappyHexMesh] external flow with snappyHexMesh	chelvistero	OpenFOAM Meshing & Mesh Conversion	11	January 15, 2010 19:43

January 19, 2016, 09:29		#2
Saideep Senior Member Saideep Join Date: Apr 2015 Location: INDIA Posts: 203 Rep Power: 12	It is probably caused due to spurious currents. This is a severe problem with interfoam. Some researchers says after a certain level of mesh refinement, the impact of these currents increase in which case the results get worser. That could be the case probably. -Saideep

January 19, 2016, 11:05		#3
lyna Member lynda Join Date: Oct 2009 Posts: 52 Rep Power: 16	thank you is what's in interFoam another method for localization of the interface, which is more accurate. Lyna