Mesh refinement regions with snappyHexMesh

andrei.cimpoeru · January 15, 2016, 07:12

Hi all,

I would like to know if in snappyHexMesh, refinement regions can be specified based on the locations that I want? For example I have a terrain map with some wind turbines. I have 20 turbines and I would like to refine the regions around my wind turbines in order to capture the wake? Is such a thing possible in snappyHexMesh?
I would appreciate any help and many thanks.

Cheers,

Andrei

nimasam · January 15, 2016, 14:48

yep its possible

you define inside/outside or distance from an specific region then it refines it

Justinus · January 15, 2016, 14:53

Hey,

have a look at the tutorials, especially for the incompressible/pimpleDyMFoam/wingMotion/wingMotion_snappyHexMesh/system/snappyHexMeshDict.
There you can find an example for refine your surface (refine any patch field) and how to define an block as refinement region.

andrei.cimpoeru · January 15, 2016, 16:18

Thanks guys. I'll have a look at the tutorials.

clktp · January 25, 2016, 08:58

Take a look at this tutorial

tutorials/incompressible/simpleFoam/turbineSiting

I think it's exactly what you want.

January 15, 2016, 07:12	Mesh refinement regions with snappyHexMesh	#1
andrei.cimpoeru Member AndreiCFD Join Date: Nov 2012 Posts: 47 Rep Power: 14	Hi all, I would like to know if in snappyHexMesh, refinement regions can be specified based on the locations that I want? For example I have a terrain map with some wind turbines. I have 20 turbines and I would like to refine the regions around my wind turbines in order to capture the wake? Is such a thing possible in snappyHexMesh? I would appreciate any help and many thanks. Cheers, Andrei pela145 and Agavi like this.

January 15, 2016, 14:48		#2
nimasam Senior Member Nima Samkhaniani Join Date: Sep 2009 Location: Tehran, Iran Posts: 1,267 Blog Entries: 1 Rep Power: 25	yep its possible you define inside/outside or distance from an specific region then it refines it __________________ My Personal Website (http://nimasamkhaniani.ir/) Telegram channel (https://t.me/cfd_foam)

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January 15, 2016, 14:53		#3
Justinus New Member Marc Join Date: Jun 2012 Posts: 3 Rep Power: 14	Hey, have a look at the tutorials, especially for the incompressible/pimpleDyMFoam/wingMotion/wingMotion_snappyHexMesh/system/snappyHexMeshDict. There you can find an example for refine your surface (refine any patch field) and how to define an block as refinement region.

January 15, 2016, 16:18		#4
andrei.cimpoeru Member AndreiCFD Join Date: Nov 2012 Posts: 47 Rep Power: 14	Thanks guys. I'll have a look at the tutorials.

January 25, 2016, 08:58		#5
clktp Member gereksiz Join Date: Mar 2015 Posts: 42 Rep Power: 11	Take a look at this tutorial tutorials/incompressible/simpleFoam/turbineSiting I think it's exactly what you want.