[blockMesh] Setting up an airfoil cascade case in OpenFoam with block mesh

Jack001 · August 6, 2015, 12:02

Hi all,

I have a geometry for 2D fan blade consisting of (x,y) points, and I wish to run a RANS simulation for the case when the blades are repeated in a 2D cascade. My blade has a rounded trailing edge and so I am thinking about using an O-grid. I wish to create my mesh using blockMesh. Does anyone have an example where they have done this or can help me out as to where I should start?

Many thanks in advance.

hxaxtma · August 6, 2015, 12:32

I have an octave script which reads the airfoil data and creates a blockMeshDict:

To start type in ysour terminal "octave meshgen_modified_octave.m"

You need geo_LS and geo_US.dat in the same folder as your script.

Maybe this is a good start for you

Jack001 · August 6, 2015, 12:39

Great thanks! I actually had something similar for my meshing of an airfoil in a free stream, but I'm not sure how to proceed in order to make a cascade out of this! Thanks for your help.

August 6, 2015, 12:02	Setting up an airfoil cascade case in OpenFoam with block mesh	#1
Jack001 Member Jack Join Date: May 2015 Posts: 98 Rep Power: 11	Hi all, I have a geometry for 2D fan blade consisting of (x,y) points, and I wish to run a RANS simulation for the case when the blades are repeated in a 2D cascade. My blade has a rounded trailing edge and so I am thinking about using an O-grid. I wish to create my mesh using blockMesh. Does anyone have an example where they have done this or can help me out as to where I should start? Many thanks in advance.

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August 6, 2015, 12:39		#3
Jack001 Member Jack Join Date: May 2015 Posts: 98 Rep Power: 11	Great thanks! I actually had something similar for my meshing of an airfoil in a free stream, but I'm not sure how to proceed in order to make a cascade out of this! Thanks for your help.