[ANSYS Meshing] Skewness Maximum in Pipe and Elbow Meshing

crmo07 · July 7, 2016, 18:27

Hi everybody, well the problem is this. I have to reach a value of Max in Skewness under 0.70 while using 5 layers of Inflation in my pipe for three meshes (750000 elements, 1.5 million and 3 millions of elements) but this has become a very hard task to achieve, not mentioning that my geometry is very small.

Can someone give me some advices? I've been changing the sizing values, applying inflation but nothing. I don't know if I'm doing something wrong here.

The features of my geometry are: D = 5.5 mm (Pipe and elbow 90°). Length upstream is 15*D and downstream is 20*D.

Kapi · July 7, 2016, 19:42

Please post a picture showing whr skewness is bad!

crmo07 · July 7, 2016, 20:40

Here's the mesh in the inlet face but is the same mesh through all the domain. I need to conserve the inflation with 5 layers and they ordered me to reach a Max in Skewness of 0.70 but I can't find the way to put it under that 0.79 or 0.78.

This is the picture for 0.75 million elements mesh, and I have to do the same for other meshes with more elements. Keeping the number of elements and reduce the Max value of Skewness.

Kapi · July 8, 2016, 01:55

what i mean is the pic of part whr skewness is high.
We need to bind that area!
why do u need sooooooooooooooo many elements?

July 7, 2016, 18:27	Skewness Maximum in Pipe and Elbow Meshing	#1
crmo07 New Member Carlos Join Date: Jul 2016 Posts: 2 Rep Power: 0	Hi everybody, well the problem is this. I have to reach a value of Max in Skewness under 0.70 while using 5 layers of Inflation in my pipe for three meshes (750000 elements, 1.5 million and 3 millions of elements) but this has become a very hard task to achieve, not mentioning that my geometry is very small. Can someone give me some advices? I've been changing the sizing values, applying inflation but nothing. I don't know if I'm doing something wrong here. The features of my geometry are: D = 5.5 mm (Pipe and elbow 90°). Length upstream is 15D and downstream is 20D.

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July 7, 2016, 19:42		#2
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	Please post a picture showing whr skewness is bad!

July 8, 2016, 01:55		#4
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	what i mean is the pic of part whr skewness is high. We need to bind that area! why do u need sooooooooooooooo many elements?