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dynamicMesh settings for contraction of a channel or cylinder

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Old   September 17, 2014, 08:32
Default dynamicMesh settings for contraction of a channel or cylinder
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Tobias Holzmann
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Hi all,

I am trying to move surfaces of a mesh with success but i have a problem at the moment:

  • Want to move a cylinder surface into its centre line is not successful at them moment... as far as I understand there is no correct BC for this problem?
  • In my simple case (see attached pictures) I am moving surfaces (left, right) of a channel into its centre line. That is working (pic2) and the results are as assumed.
  • Doing the same thing now with two more surfaces (left, right, front and back) then I have the problem, that I got crazy deformation at the corners (see pic3). This is also assumed and I know why that happen. Still I dont know how to solve it.
  • I tryed splitting the mesh in more faces that I can make other settings in the motion file but its not working.
  • Does anybody know how to deal with that?
  • At least I want to know if its possible to deform the surface with an profile (like parabolic etc.)?

Thanks in advance,
Attached Images
File Type: jpg pic1.jpg (22.0 KB, 10 views)
File Type: jpg pic2.jpg (19.5 KB, 9 views)
File Type: jpg pic3.jpg (33.5 KB, 9 views)
Best regards,
Tobias Holzmann

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