Keyur Kanade
Ansys Employee

For combustion domain you can use poly mesh with appropriate refinement in different regions. 

For hex meshing you will need to use Ansys Meshing or ICEMCFD. 

For Ansys Meshing you can check following videos. 

Please check following videos

Ansys Meshing Sizing:
https://www.youtube.com/watch?v=w4q6q8nKF3U

DM Share topology:
https://www.youtube.com/watch?v=IO4ZtwZdD2I

SpaceClaim Share topology:
https://www.youtube.com/watch?v=h43E1YO1LiM

Ansys Meshing: Decomposition for hex meshing:
https://www.youtube.com/watch?v=P19GOTQWmc0

Ansys Meshing: Meshing Methods:
https://www.youtube.com/watch?v=nEOC8rDnnRo

 

Regards,

Keyur

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