Learning Forum

[MES29]

Hello, I am trying to run a simulation of the drag forces acting on a bicycle wheel using MRF. I have modelled the wheel in Fusion 360 and imported it into spaceclaim as a step file. The wheel has a cylindrical enclosure that will act as the moving reference frame and a large rectangular enclosure around all of that to act as the stationary domain. The wheel has been cleaned up using the repair tool to remove extra edges. However, I am unable to reduce the number of faces the wheel rim has, which makes meshing extremely difficult. When I go into the meshing stage I am applying a tetrahedral mesh to the cylindrical enclosure. However, when I mesh the cylindrical enclosure, it also meshes the solid wheel, not just the surface of it. Is there a way to avoid meshing the inside of the wheel as it will be a solid and does not need to be meshed? Additionally, is there a way to mesh the surface of the wheel itself? I have tried adding a surface mesh to it but that also meshes the solid, or does it only look like it meshes the interior? . When I check the connections tab it shows there are countless interfaces between the wheel and the enclosure. Every time I try to mesh it just shoes the whole thing as a failed mesh. The spoked on the wheel also fail to mesh each time. nThese meshing issues have made it very difficult to move forward as the mesh won't update and I cannot resolve why it doesn't work after digging through all the forum posts I can find. Any help would be greatly appreciated. n

[Keyur Kanade]

As ANSYS Staff, we can not download attachments. Please upload images using upload image functionality. nSelect solid body in model tree in meshing - right click - suppress. This will avoid meshing that solid body. nAs far as I understand you will need to use Named Selection for identifying any surfaces. Please go through help manual for more details nRegards,nKeyurnHow to access Ansys Online Help DocumentnHow to show full resolution imagenGuidelines on the Student CommunitynHow to use Google to search within Ansys Student Communityn

[MES29]

How do create the surface mesh if I am supressing the wheel body? In that case I doesn't let me generate a mesh on the surface. n n

[Keyur Kanade]

Please subtract wheel from your cylindrical enclosure. Then it will have that corresponding surface. nIf required, please upload some images. nRegards,nKeyurnHow to access Ansys Online Help DocumentnHow to show full resolution imagenGuidelines on the Student CommunitynHow to use Google to search within Ansys Student Communityn