moving Body in different directions with topological changes of the mesh

fluidmobil · January 27, 2015, 15:12

Hello foamers,

I'm new to OpenFOAM and using foam-extended-3.1.
I want to adapt the tutorial

"tutorials / incompressible / icoDyMFoam / movingConeTopo"

in the way that a body is moved in x- and y-direction and for each each direction separate movingBodyTopoFvMeshCoeffs defined in the dynamicMeshDict.

I considered modifying the file movingBodyTopoFvMesh.C but I'm not sure what exactly to change.

Another idea was to subsequently apply the mesh motion module twice for each direction.

Can anybody help?

kind regards

fluidmobil · April 13, 2015, 05:55

Hello,

maybe some more information about the problem could be helpful.

The case is very simple. Just a structured rectangular mesh. The pictures simpleTopo1.jpg and simpleTopo2.jpg show the motion in vertical direction. The pictures simpleTopoHoriz1.jpg and simpleTopoHoriz2.jpg the direction in horizontal direction.

the two motions individual is working and simple. But now I want to move the lower boundary and the right boundary simultanously. This does not work.

my blockMeshDict:
https://dl.dropboxusercontent.com/u/.../blockMeshDict

my dynamicMeshDict:
https://dl.dropboxusercontent.com/u/...ynamicMeshDict

my meshModifiers:
https://dl.dropboxusercontent.com/u/.../meshModifiers

my setBatch-file to define the moving faces:
https://dl.dropboxusercontent.com/u/77291489/setBatch

Maybe the front and backFaces have to be defined differently?

tiat · October 23, 2015, 09:47

Hi!

I am having the same interest of moving the mesh both in x and y direction. I wonder have you figured out the solution?

regards,
Tian

maalan · March 2, 2016, 05:30

Quote:

in the way that a body is moved in x- and y-direction and for each each direction separate movingBodyTopoFvMeshCoeffs defined in the dynamicMeshDict.

Hi there! I'm also interested in this point. Did you finally solve it?

Best

saatt · April 23, 2017, 10:34

Hi guys, can anyone solve the question?

January 27, 2015, 15:12	moving Body in different directions with topological changes of the mesh	#1
fluidmobil New Member Mathi Join Date: Dec 2014 Posts: 11 Rep Power: 11	Hello foamers, I'm new to OpenFOAM and using foam-extended-3.1. I want to adapt the tutorial "tutorials / incompressible / icoDyMFoam / movingConeTopo" in the way that a body is moved in x- and y-direction and for each each direction separate movingBodyTopoFvMeshCoeffs defined in the dynamicMeshDict. I considered modifying the file movingBodyTopoFvMesh.C but I'm not sure what exactly to change. Another idea was to subsequently apply the mesh motion module twice for each direction. Can anybody help? kind regards maalan and saatt like this.

October 23, 2015, 09:47		#3
tiat New Member Tian Tang Join Date: Jun 2012 Location: Copenhagen, Denmark Posts: 18 Rep Power: 13	Hi! I am having the same interest of moving the mesh both in x and y direction. I wonder have you figured out the solution? regards, Tian maalan likes this.

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April 13, 2015, 05:55		#2
fluidmobil New Member Mathi Join Date: Dec 2014 Posts: 11 Rep Power: 11	Hello, maybe some more information about the problem could be helpful. The case is very simple. Just a structured rectangular mesh. The pictures simpleTopo1.jpg and simpleTopo2.jpg show the motion in vertical direction. The pictures simpleTopoHoriz1.jpg and simpleTopoHoriz2.jpg the direction in horizontal direction. the two motions individual is working and simple. But now I want to move the lower boundary and the right boundary simultanously. This does not work. my blockMeshDict: https://dl.dropboxusercontent.com/u/.../blockMeshDict my dynamicMeshDict: https://dl.dropboxusercontent.com/u/...ynamicMeshDict my meshModifiers: https://dl.dropboxusercontent.com/u/.../meshModifiers my setBatch-file to define the moving faces: https://dl.dropboxusercontent.com/u/77291489/setBatch Maybe the front and backFaces have to be defined differently?

April 23, 2017, 10:34		#5
saatt New Member Join Date: Mar 2017 Posts: 28 Rep Power: 9	Hi guys, can anyone solve the question?