Learning Forum

[avidano]

Hi!

I want to analyze flexible cylinder (mechanical+fluent).

1. Can someone check my geometry attached cause I am not sure if I did it ok. You will see that I did many steps and there must be some better way of splitting the domain for hexa mesh. Also, the question is should there be a "solid" body under part tree so later one can identify it as a cylinder wall?
2. As I have found out that the best hexa mesh can be obtained in ICEM, and also that ICEM can be used for FSI problems, the question is: is it better to make the geometry inside the DM or directly in ICEM? Or should I stick to the Ansys Meshing for this simple geometry?

3d_cylinder_4m.wbpz

[Keyur Kanade]

As ANSYS Staff, we can not download attachments. Please upload images using upload image functionality. nPlease also check if you can do hex meshing in Ansys meshing. nnRegards,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

[avidano]

HiArray, here are the images.nnMultiZone works fine but when Inflation is added I get message :A software execution error occurred inside the mesher. The process suffered an unhandled exception or ran out of usable memory. nI think the memory is not a problem. When I reduce first layer height from 1.9e-5 to 8e-4, mesh is executed successfully. But then my y+ is not 1 or smaller.nnI didn't use any further local settings and at one point when refining global settings again the same message appears.n

[Karthik Remella]

Hi @kkanade, here are the images.https://us.v-cdn.net/6032193/uploads/FW38N3I5XY10/f3.pnghttps://us.v-cdn.net/6032193/uploads/E1M4DD565FBW/f2.pnghttps://us.v-cdn.net/6032193/uploads/V1GIJV5MJK04/f1.pngMultiZone works fine but when Inflation is added I get message : "A software execution error occurred inside the mesher. The process suffered an unhandled exception or ran out of usable memory." I think the memory is not a problem. When I reduce first layer height from 1.9e-5 to 8e-4, mesh is executed successfully. But then my y+ is not 1 or smaller.https://us.v-cdn.net/6032193/uploads/DJMMR2N33CLF/mesh.pngI didn't use any further local settings and at one point when refining global settings again the same message appears./forum/discussion/comment/105953#Comment_105953

Hello, nBased on error message you provide - this seems like a memory issue. How many cells are we talking about in your mesh. Please check the mesh statistics for this number.nAlso, what is your Memory on this machine?nKarthikn

[avidano]

Thank you for your time nIt is a bit less than 2.5 million. nMachine memory is 16GB of RAM. n