We’re putting the final touches on our new badges platform. Badge issuance remains temporarily paused, but all completions are being recorded and will be fulfilled once the platform is live. Thank you for your patience.

Ansys Learning Forum › Forums › Discuss Simulation › Fluids › Dynamic Mesh – Negative Cell Zone Detected › Reply To: Dynamic Mesh – Negative Cell Zone Detected

May 29, 2024 at 1:46 pm
Federico
Ansys Employee

Hello, 

hex-mesh is not compatible with remeshing, which is why your are seeing streched out elements on the left and compressed elements on the right, which eventually result in collapsed cells or negative volume elements.

You will need to mesh the volume surrounding the car with tetrahedral cells. An alternative would be to have a structured block of hex cells around the car and use the layering approach.