[ANSYS Meshing] Skewness and Orthogonal quality inspection

Rajkool · July 7, 2020, 13:47

Hello all,

I have a complex body with more than 300 parts. I have given mesh based on body shapes.

The mesh is successful. I just want to know that, should we consider only average value for skewness and orthogonal quality or we should also take Min value of the node into account too?

(PS: If I don't make any sense in my question please look into attached images)

Thanks in advance,
Raj

NicoKlein · July 7, 2020, 15:53

Good afternoon Raj,

normally the Min and Max values should be your concern, since these are the elements who can be the reason for a divergence of the solution. A target value for the skewness should be < 0.25 but everything below 0.9 is acceptable. For the orthogonal quality, I am not 100% sure.

Rajkool · July 7, 2020, 17:39

As you can see my images. I have some nodes with very low skewness and very low OQ values. But, the average seems to be fine.

What would you suggest me to do now?

Guvennergiz · July 21, 2020, 01:48

Hello Rajkool,
Please check the figure below for min. ortho and max. skewness.
Best regards,
Güven

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[ICEM] Minimum Orthogonal Quality when imported to FLUENT	pchoopanya	ANSYS Meshing & Geometry	2	November 6, 2020 23:29
[Other] How to find mesh skewness, orthogonal quality, and other values for mesh quality	Bran	ANSYS Meshing & Geometry	1	July 28, 2019 05:25
Deforming Mesh Orthogonal Quality Improvement	siaam	FLUENT	0	December 18, 2018 06:35
[ICEM] Mesh quality criteria in ICEM	Chander	ANSYS Meshing & Geometry	13	September 5, 2017 08:52
[ANSYS Meshing] Improving orthogonal skewness	Allen fernandes	ANSYS Meshing & Geometry	0	January 25, 2017 05:26

July 7, 2020, 15:53		#2
NicoKlein New Member Nico Join Date: Jul 2020 Posts: 2 Rep Power: 0	Good afternoon Raj, normally the Min and Max values should be your concern, since these are the elements who can be the reason for a divergence of the solution. A target value for the skewness should be < 0.25 but everything below 0.9 is acceptable. For the orthogonal quality, I am not 100% sure.

July 7, 2020, 17:39		#3
Rajkool Member Raj Join Date: Jan 2020 Posts: 92 Rep Power: 6	As you can see my images. I have some nodes with very low skewness and very low OQ values. But, the average seems to be fine. What would you suggest me to do now?