Making Geometry in Gmsh

rahulsng · January 12, 2012, 08:12

Hello friends,

I am having problem making a simple geometry in Gmsh. I am trying to make a cylinder with a bulge. The bulge part of the cylinder is based on a 2D equation. The cylinder part is Ok but i am not able to draw the bulged part of the cylinder in Gmsh. I tried to import the Iges file from solidworks and save it as .geo file but the saved .geo has a lot of splines in it. I was thinking is there a simpler way to draw this geometry directly into Gmsh.

Thanks a lot for any help!
Rahul

seboxx · January 14, 2012, 07:05

Hello Rahul,

I have tried meshing similiar geometries in Gmsh as well. It turned out that especially the link to OF to get a proper mesh is quite tricky.
So I started using blockMesh.
I am quite happy with the way blockMesh works, the only minus is, you can't "draw" your mesh.

Cylinder and Bulge should be easy to realise in blockMesh using arcs and splines...

Just wanted to give u a recommendation

Regards,

seb

January 12, 2012, 08:12	Making Geometry in Gmsh	#1
rahulsng New Member Rahul Singh Join Date: Oct 2011 Posts: 5 Rep Power: 15	Hello friends, I am having problem making a simple geometry in Gmsh. I am trying to make a cylinder with a bulge. The bulge part of the cylinder is based on a 2D equation. The cylinder part is Ok but i am not able to draw the bulged part of the cylinder in Gmsh. I tried to import the Iges file from solidworks and save it as .geo file but the saved .geo has a lot of splines in it. I was thinking is there a simpler way to draw this geometry directly into Gmsh. Thanks a lot for any help! Rahul

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January 14, 2012, 07:05		#2
seboxx Member Join Date: Aug 2011 Posts: 33 Rep Power: 15	Hello Rahul, I have tried meshing similiar geometries in Gmsh as well. It turned out that especially the link to OF to get a proper mesh is quite tricky. So I started using blockMesh. I am quite happy with the way blockMesh works, the only minus is, you can't "draw" your mesh. Cylinder and Bulge should be easy to realise in blockMesh using arcs and splines... Just wanted to give u a recommendation Regards, seb