3D Design

3D Design

Topics related to Ansys Discovery and Ansys SpaceClaim.

Help in modifing geometry for sweep mesh

    • adib.aktab999
      Subscriber

      I have created geometry in solidworks.

       

      I have extracted the fluid region for fluent simulation,

      I am trying to do hex mesh or sweep mesh, how can I modify my geometry in space claim so that my fluid body becomes sweepable??



      You can suggest me yt videos or ansys courses where i can understand the theory of sweep mesh and share topology options on space claim.

    • V.P
      Ansys Employee

      Hi,

      For the geometry to become sweepable, you need to dissect it. You cannot use sweep on all the bodies at once, as they have different cross-sections

    • adib.aktab999
      Subscriber

      Do I have to use share topology as I dissect the body?? 

    • peteroznewman
      Subscriber

      Since you provided your geometry, I can show you an example of the dissection mentioned by CFD_Friend.

      In SpaceClaim, you use Split Body and cut all the bodies until you have faces that can sweep from one end to the other to describe the solid.

      One issue that makes this difficult is when a spike or almost spike is created on a face. Below is an almost spike.

      Since you added big blends to the ends of the half cylinder in your original post, there are some interesting surface curves created by the projection of the cylinder from below.

      The final step is to use the Share button on the Workbench tab to share topology and avoid using any Contacts in the mesh application.

      However, as I check this out carefully, one of the Split Body operations created a defect. Notice the spike on the right that is not on the left.

      If the cylinder didn’t come so close to the edge of the next cavity, this might not happen.  I repaired this by deleting two solids on the right, creating a center plane and using the Mirror button to reflect the left side solids over to the right.

      Most bodies are now Sweepable.

      With a little more digging, it should be possible to find the cause of the tet mesh on the long cylinder.

Viewing 3 reply threads
  • You must be logged in to reply to this topic.