# Mesh motion - Rolational velocity components

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 January 30, 2006, 05:09 Mesh motion - Rolational velocity components #1 Manoj Kumar Guest   Posts: n/a Hi Do we have the option of imposing rolational velocity components to a deforming mesh? I can find just x,y and z components in 'Edit Boundary>Mesh Motion' panel. Thanks Manoj

 January 30, 2006, 18:00 Re: Mesh motion - Rolational velocity components #2 Glenn Horrocks Guest   Posts: n/a Hi, With deforming mesh you have to specify the incremental deformation or the absolute location of every node. You need to write a function which describes the motion of every node as a x/y/z deformation or position. Glenn Horrocks

 January 31, 2006, 00:25 Re: Mesh motion - Rolational velocity components #3 Manoj Kumar Guest   Posts: n/a Hi Glenn In my problem a block floats in water contained in a tank. Due to sloshing force the block translates and rotates. I was earlier using Fluent, and was able to simulate this problem using 6DOF feature. How do I solve this problem in CFX-10 ? Will I have to write a CEL function or a fortran routine to specify the rotational (with translational) motion ? Can you guide me.. Thanks Manoj

 January 31, 2006, 18:34 Re: Mesh motion - Rolational velocity components #4 Glenn Horrocks Guest   Posts: n/a Hi, You will need to generate equations of motion for the nodes on the surface which give the new node positions as a function of the original node position and the block translation and rotation. Have a look at the mesh deformation example with CFX. It also sounds like you are new to moving mesh in CFX, so start off by doing simpler things like a piston compressing a cylinder with moving mesh. When you can run that confidently start thinking about your more complicated 6DOF case. Regards, Glenn Horrocks

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