[ICEM] Simple 2D problem, not simple enough (for me)

MKIndyR1 · November 26, 2015, 21:53

POSSIBLY SOLVED! see reply

I have a stepped 2D duct. A tapered edge returns to the upper wall of the duct which is parallel to the lower wall. See below:

The issue I'm having is creating a good, structured mesh in ICEM for exporting to fluent.

I create 9 blocks, then delete the top middle & right, and the middle before associating curves to edges.

I've tried merging blocks, linking/unsplitting edges.

The nodes along length (A) always match (B).

I'd rather have node count on (A) = (B)+(D).

What am I doing wrong?

Thanks

MKIndyR1 · November 27, 2015, 00:17

Might now be solved...

Took a while. I stumbled on a good looking pre-mesh, I couldn't replicate it for a long time, and when I did it wouldn't load into ICEM because of open edges. I removed some blocks and merged two, to get the below:

This gives a much better, uniform looking mesh after the taper:

The cell aspect ratio is way off but at least it can be imported into Fluent.

November 26, 2015, 21:53	Simple 2D problem, not simple enough (for me)	#1
MKIndyR1 New Member Jimbob Join Date: Nov 2015 Posts: 2 Rep Power: 0	POSSIBLY SOLVED! see reply I have a stepped 2D duct. A tapered edge returns to the upper wall of the duct which is parallel to the lower wall. See below: The issue I'm having is creating a good, structured mesh in ICEM for exporting to fluent. I create 9 blocks, then delete the top middle & right, and the middle before associating curves to edges. I've tried merging blocks, linking/unsplitting edges. The nodes along length (A) always match (B). I'd rather have node count on (A) = (B)+(D). What am I doing wrong? Thanks Last edited by MKIndyR1; November 27, 2015 at 00:18.

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November 27, 2015, 00:17		#2
MKIndyR1 New Member Jimbob Join Date: Nov 2015 Posts: 2 Rep Power: 0	Might now be solved... Took a while. I stumbled on a good looking pre-mesh, I couldn't replicate it for a long time, and when I did it wouldn't load into ICEM because of open edges. I removed some blocks and merged two, to get the below: This gives a much better, uniform looking mesh after the taper: The cell aspect ratio is way off but at least it can be imported into Fluent.