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Reducing the number of nodes

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Old   July 6, 2017, 14:41
Default Reducing the number of nodes
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Hello,

I am trying to make a 2D structured mesh for gas turbine blade with resolved viscous layer. However, as I try to reach y+ in the range 0.8-1 because of the aspect ratio I end up having about 1 million nodes. I have rotational periodic boundaries and everything I do on one side of the blade transfers to the other and increases the number eve more. I have read the best practice guidelines on turbomachinery and some other recommendations on the nodes number and it seems i have too many nodes.

I checked everything multiple times (boundary conditions and physics) and I cannot seem to find a fault, plus the results from y+=80 seem to be logical and expected. Is there any tip on what should I do/check to reduce the number of nodes? Is it normal that I have so many nodes for a 2D case?

Any advice would be greatly appreciated!
Thank you!

Elena.

Last edited by Elena T; July 6, 2017 at 18:14.
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