[snappyHexMesh] Mesh/grid Independence study with sHM

Sunsheep · July 22, 2018, 10:35

Hi guys,

I got some questions about the mesh/grid Independence study with snappyHexMesh (sHM):

- How do you archive a mesh independence solution with sHM?

- Only adjust the cell size of the backgroundMesh?

- Playing around with the levels inside the sHMDict?

- Working with refinement boxes etc.?

- A mix of these three ways?

- Or is there another way?

Thank you for your answers.

Sunsheep

MTomić · November 1, 2024, 13:09

Dear Foamers,

Many years later, I hope to revive this thread.

Has anyone had any success in creating a generalized workflow for conducting grid independence studies using snappyHexMesh?

Some general tips, like increasing the 3D background mesh by a factor of 1.5 instead of 2 ( $2^{3} >> 1.5^{3}$ ) and using the representative cell length as opposed to the number of cells in the domain, etc... would be appreciated as well.

How many of you generally use the Richardson extrapolation in the process as well?

July 22, 2018, 10:35	Mesh/grid Independence study with sHM	#1
Sunsheep New Member anonymous Join Date: Sep 2017 Posts: 3 Rep Power: 9	Hi guys, I got some questions about the mesh/grid Independence study with snappyHexMesh (sHM): - How do you archive a mesh independence solution with sHM? - Only adjust the cell size of the backgroundMesh? - Playing around with the levels inside the sHMDict? - Working with refinement boxes etc.? - A mix of these three ways? - Or is there another way? Thank you for your answers. Sunsheep Last edited by Sunsheep; July 22, 2018 at 10:38. Reason: - formating

November 1, 2024, 13:09		#2
MTomić New Member Matej Tomić Join Date: Jul 2022 Posts: 5 Rep Power: 4	Dear Foamers, Many years later, I hope to revive this thread. Has anyone had any success in creating a generalized workflow for conducting grid independence studies using snappyHexMesh? Some general tips, like increasing the 3D background mesh by a factor of 1.5 instead of 2 ( $2^{3} >> 1.5^{3}$ ) and using the representative cell length as opposed to the number of cells in the domain, etc... would be appreciated as well. How many of you generally use the Richardson extrapolation in the process as well? __________________ Regards, Matej Last edited by MTomić; November 1, 2024 at 13:10. Reason: Formatting

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