3d pipe with dynamic mesh

moloykb · February 13, 2013, 02:08

Dear all,
I am trying to simulate the problem where a 3d cylindrical pipe, whose wall is expanding and contracting simultaneously in a sinusoidal manner. How to put the velocity components for that situation using DEFINE_CG_MOTION macro.
Any help is highly appreciated.

moloykb · February 14, 2013, 02:40

whetehr I acn do it with DEFINE_CG_MOTION macro or not? or I have to switch to DEFINE_GRID_MOTION? Pl. help me....

moloykb · February 18, 2013, 00:04

pl. help me in this regard. I am not in a position to proceed further ...

moloykb · February 21, 2013, 03:14

anybody have any idea about the problem... I am stuck this for quite a sometime now??

benjamin_ · June 12, 2013, 04:03

Hi moloykb,

I'm currently experiencing the same issue :

DEFINE_GRID_MOTION on a cell block , for the mesh movement it's OK , but I've a 0 velocity on the moving wall , so a wrong shear stress...

Did you solve this ?
Regards

Ben

February 13, 2013, 02:08	3d pipe with dynamic mesh	#1
moloykb Member Dr. Moloy Kumar Banerjee Join Date: Jun 2011 Posts: 71 Rep Power: 14	Dear all, I am trying to simulate the problem where a 3d cylindrical pipe, whose wall is expanding and contracting simultaneously in a sinusoidal manner. How to put the velocity components for that situation using DEFINE_CG_MOTION macro. Any help is highly appreciated.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Update of the variables after dynamic mesh motion.	gtg258f	OpenFOAM Programming & Development	9	January 18, 2014 10:08
potentialFreeSurfaceFoam with Dynamic Mesh	GuilhermeMP	OpenFOAM Programming & Development	1	October 6, 2013 03:05
3D Hybrid Mesh Errors	DarrenC	ANSYS Meshing & Geometry	11	August 5, 2013 06:42
dynamic mesh refinement and rhoCentralFoam	ChrisA	OpenFOAM Running, Solving & CFD	1	March 21, 2013 08:00
[blockMesh] generate a graded pipe mesh.	jenright	OpenFOAM Meshing & Mesh Conversion	0	August 22, 2009 08:58

February 14, 2013, 02:40		#2
moloykb Member Dr. Moloy Kumar Banerjee Join Date: Jun 2011 Posts: 71 Rep Power: 14	whetehr I acn do it with DEFINE_CG_MOTION macro or not? or I have to switch to DEFINE_GRID_MOTION? Pl. help me....

February 18, 2013, 00:04		#3
moloykb Member Dr. Moloy Kumar Banerjee Join Date: Jun 2011 Posts: 71 Rep Power: 14	pl. help me in this regard. I am not in a position to proceed further ...

February 21, 2013, 03:14		#4
moloykb Member Dr. Moloy Kumar Banerjee Join Date: Jun 2011 Posts: 71 Rep Power: 14	anybody have any idea about the problem... I am stuck this for quite a sometime now??

June 12, 2013, 04:03		#5
benjamin_ New Member Join Date: Nov 2012 Posts: 6 Rep Power: 13	Hi moloykb, I'm currently experiencing the same issue : DEFINE_GRID_MOTION on a cell block , for the mesh movement it's OK , but I've a 0 velocity on the moving wall , so a wrong shear stress... Did you solve this ? Regards Ben