Meshing a quasi-2D cylindrical wedge

evcelica · January 9, 2013, 22:29

Does anyone have any recommendations for meshing an axisymmetric cylinder? would it be better to use tetra or hexa mesh? Obviously the cell at the axis would have to be a prism if I did hexa the rest of the way out? But whatever I do looks like complete garbage of course, and I wonder if there are any guidelines to make it look halfway decent.

I sure do wish I knew Fluent right now!
CFX blows!!
I'd like to punch them in the face. (quoting King Odysseus form the movie Troy)

diamondx · January 9, 2013, 22:46

evcelica, finally you came out of the hardware section

it can be done using hexa only, do you have icem cfd among your tools ? come adress you problem in the ansys geometry and meshing section i'm sure you will get a lot of help

evcelica · January 10, 2013, 09:51

Hi Ali,

I do have ICEM CFD. I only asked here instead of on the meshing forum because it seems most users of other programs wouldn't have to worry about this problem.
I figured I could make the cell on the axis a prism, and the rest could be hexa, but I don't want to force it into something it doesn't like.
I'm doing a buoyant driven flow, which is already sensitive to mesh quality, and I worry about this poor quality wedge mesh making it even worse.

January 9, 2013, 22:29	Meshing a quasi-2D cylindrical wedge	#1
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,188 Rep Power: 23	Does anyone have any recommendations for meshing an axisymmetric cylinder? would it be better to use tetra or hexa mesh? Obviously the cell at the axis would have to be a prism if I did hexa the rest of the way out? But whatever I do looks like complete garbage of course, and I wonder if there are any guidelines to make it look halfway decent. I sure do wish I knew Fluent right now! CFX blows!! I'd like to punch them in the face. (quoting King Odysseus form the movie Troy)

January 9, 2013, 22:46		#2
diamondx Super Moderator Ghazlani M. Ali Join Date: May 2011 Location: Tokyo, Japan Posts: 1,385 Blog Entries: 23 Rep Power: 29	evcelica, finally you came out of the hardware section it can be done using hexa only, do you have icem cfd among your tools ? come adress you problem in the ansys geometry and meshing section i'm sure you will get a lot of help __________________ Regards, New to ICEM CFD, try this document --> https://goo.gl/KAOIwm Ali

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January 10, 2013, 09:51		#3
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,188 Rep Power: 23	Hi Ali, I do have ICEM CFD. I only asked here instead of on the meshing forum because it seems most users of other programs wouldn't have to worry about this problem. I figured I could make the cell on the axis a prism, and the rest could be hexa, but I don't want to force it into something it doesn't like. I'm doing a buoyant driven flow, which is already sensitive to mesh quality, and I worry about this poor quality wedge mesh making it even worse.