Multizone Blocking Decomposition failed.

  • Last Post 5 days ago
  • Topic Is Solved
jaseemharry posted this 3 weeks ago

I am a beginner to Ansys Fluent. I am trying to mesh a microchannel heat exchanger as part of my project. But i couldn't do the meshing part. It shows an error "MultiZone blocking decomposition failed".

I have modeled the geometry using Ansys Spaceclaim. I have attached the Archive file along. Please help me.

Attached Files

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peteroznewman posted this 3 weeks ago

Replace the Multizone method with Hex Dominant method.  On the Mesh Details window, type 2.5e-2 mm for the Element Size and you will get a hex mesh.

Three elements across a fluid channel is way too few to properly compute the flow. You will want at least 10 elements across the channel and smaller elements near the wall.

Regards, Peter

kkanade posted this 3 weeks ago

following link may help you. 

if this helps you, please mark this post as 'is solution' to help others on forum.




jaseemharry posted this 5 days ago

Thank you for the reply. and sorry i took so long. I was busy with my project.