The Siemens Community Catalyst program was co-created with our community to acknowledge technology leaders who consistently contribute to the Siemens Community. Nominations are accepted on a rolling basis.
Hi,
I'm meshing a propeller and I'm trying to connect a tetramesh to hexamesh. As nodes don't match, I would like to create a contact between both. All the elements belong to the same body.
Is this a good option? How could it be done?
Best way is to begin with splitting the solids using solid edit options-if you dont have them separated(Make sure that all the solids have shared surfaces)
. Then you can hex mesh the ones needed. Followed by tet meshing-with hybrid option on-i.e. have the 3d type mixed- and then you wil have pyramids for transition between hex and tet elems.
You can also put your own 2d tria mesh and then use the first Tetramesh option as well.
Best way is to begin with splitting the solids using solid edit options-if you dont have them separated(Make sure that all the solids have shared surfaces) . Then you can hex mesh the ones needed. Followed by tet meshing-with hybrid option on-i.e. have the 3d type mixed- and then you wil have pyramids for transition between hex and tet elems. You can also put your own 2d tria mesh and then use the first Tetramesh option as well.
Hi Viraj,
Many thanks for your answer.
I have already split the solid but I can't do what you said because the edge of the solid I want to mesh with tetras is a circle that is connected to surface I previously meshed as a mappable solid. I don't think there is any way to connect the nodes. I'm attaching a screenshot with the problematic area.
Hi Viraj, Many thanks for your answer. I have already split the solid but I can't do what you said because the edge of the solid I want to mesh with tetras is a circle that is connected to surface I previously meshed as a mappable solid. I don't think there is any way to connect the nodes. I'm attaching a screenshot with the problematic area.
The image you shared-shows the solids though belonging to same body are not connected. i.e. not having shared surfaces.
For example-bottom image shows 2 solids not connected/not having shared surfaces
You need to do a boolean operation to get them connected-see the yellow shared surface
You will probably need to delete the mesh..repair cad and then remesh again.
If you want to hack a solution, you can delete couple of layers of tet elements near the hex mesh. Then create faces for both hex and tet mesh. Delete all the other faces except the ones where you need to connect mesh..i.e. on hex mesh top face and tet mesh bottom face. Then create a 2d surface mesh from the nodes using ruled mesh. Then tet mesh using this enclosed 2d mesh to create a hybrid mesh in between.
Best way still is to repair CAD first
Is it possible to use a mesh not associated with any geometry (like after rotating elements) as seed when meshing a solid?
Join us for a community conversation on Pulse Width Modulation (PWM), a fundamental technique in electric motor control, and explore how different PWM strategies can yield significantly different results. This webinar provides a comparative analysis of various PWM methods and their effects on motor efficiency, torque…
Join us for a community conversation to discover the Advanced Iterative Solver(AIS) in Simcenter Feko and its application to electrically large and computationally demanding electromagnetic models. The session will provide a general overview of how iterative solution methods can help improve efficiency of large scale…
Join us for a community conversation on how High-Performance Computing (HPC) and Simcenter PSIM work together to meet the increasing demands of modern power electronics simulation. During this one-hour technical session, you'll discover how leveraging HPC can speed up simulations, improve scalability, and empower engineers…
