3D Design

3D Design

How to specify inflation layers around a curved surface in ICEM CFD?

    • cez198229
      Subscriber

      I am trying to develop Hexa mesh in a flow domain with a scour hole around the bottom of the cylinder. The flow domain is shown in the figure.

      The cylinder and the bottom surface are treated as walls, so the inflation layers must be provided around them.

      To provide the inflation layer to the bottom surface with scour hole, first layer thickness, growth rate and the number of layers are provided to the edges 1,2,3,4, 10,11,12 and 13 (as shown in the blocking figure). But the edge properties provided to the edges 1,2,3,4 are getting copied to all the parallel edges (edges 5,6,7,8,9 and the edges in the same row). It leads to the development of inflation layers above the bottom surface in the scour hole region (as shown in the attached figure).

      I need the inflation layer only to the bottom surface in the scour hole region but not above it.
      Please suggest possible solutions to this problem.

       

    • Keyur Kanade
      Ansys Employee

      While defining edge sizing you can click OFF option of Copy to parallel edges. 

      Please go through help manual for more details 

      Regards,

      Keyur

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    • cez198229
      Subscriber

      The number of nodes is getting copied to all the parallel edges even though the copy to parallel edges option is disabled. 

      It leads to the following output.

    • Keyur Kanade
      Ansys Employee

      No. of nodes will be same as it is hex mesh. Only thing is you can move vertex to increase edge length. 

      Please go through help manual for more details 

    • cez198229
      Subscriber

      Thank you, I solved the issue.

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