2D snappyHexMesh

wind_fyp · January 19, 2010, 04:17

Dear all,

I try to simulate wind flow throung a sing building in OpenFOAM, in order to save some running time, I simulate it as a 2D case.
However, the snappyhexMesh is not applicable in 2D simulation because it will not only refine in x and y direction, but also in z direction, there make my blockMesh has more then one layer of cell in z direction, do someone have some tool for 2D snappyHexMesh? Or do someone have idea for my question?

Thx,
wind_FYP

roth · January 20, 2010, 06:14

Perhaps you could snappyHexMesh your geometry and then use extrudeMesh to extrude one layer from the surface representing your 2D geometry. Just keep the layer.

Mike

wind_fyp · January 21, 2010, 04:37

thx, Mike
But can you tell me how to use 'extrudeMesh ' in detail, because I have not used before.

wind_FYP

anothr_acc · September 27, 2010, 13:00

Hi Wind_fyp,

Did you get your job working? I'm in the same position and am wondering what the best approach is. There seems to be a distinct lack of two-dimensional snappyHexMesh posts!

Cheers, Mark.

January 19, 2010, 04:17	2D snappyHexMesh	#1
wind_fyp New Member wong Join Date: Oct 2009 Posts: 6 Rep Power: 5	Dear all, I try to simulate wind flow throung a sing building in OpenFOAM, in order to save some running time, I simulate it as a 2D case. However, the snappyhexMesh is not applicable in 2D simulation because it will not only refine in x and y direction, but also in z direction, there make my blockMesh has more then one layer of cell in z direction, do someone have some tool for 2D snappyHexMesh? Or do someone have idea for my question? Thx, wind_FYP

January 20, 2010, 06:14	extrudeMesh	#2
roth Member Michael Roth Join Date: Mar 2009 Location: Guelph, Ontario, Canada Posts: 44 Rep Power: 6	Perhaps you could snappyHexMesh your geometry and then use extrudeMesh to extrude one layer from the surface representing your 2D geometry. Just keep the layer. Mike

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January 21, 2010, 04:37		#3
wind_fyp New Member wong Join Date: Oct 2009 Posts: 6 Rep Power: 5	thx, Mike But can you tell me how to use 'extrudeMesh ' in detail, because I have not used before. wind_FYP

September 27, 2010, 13:00		#4
anothr_acc Member ms Join Date: Mar 2009 Posts: 32 Rep Power: 6	Hi Wind_fyp, Did you get your job working? I'm in the same position and am wondering what the best approach is. There seems to be a distinct lack of two-dimensional snappyHexMesh posts! Cheers, Mark.