Fluent meshing skewness vs Fluent skewness

Jiricbeng · November 8, 2018, 09:53

Hi,

I created mesh in Fluent meshing (19.2) and checked skewness to be 0.971. I imported this mesh into Fluent (19.2) where there was warning the skewness is 1 !

I struggled with this also in ANSYS Meshing: in ANSYS meshing skewness was 0.98 and after importing into Fluent it was higher 0.99.

What is the reason Fluent shows another skewness (usually higher) than in meshing? How shall I be sure about mesh parameters before importing to Fluent?

Jiricbeng · November 14, 2018, 03:05

I figured out the reason: parallelization. Parallel distribution leaded to skewness 1, serial mode leaded to the same skewness as in the Fluent meshing - 0.971.

Jiricbeng · January 10, 2019, 11:19

Well, I came across a case where even in serial mode was quite different skewness than in meshing. Parallelization does not have to be the answer.

November 8, 2018, 09:53	Fluent meshing skewness vs Fluent skewness	#1
Jiricbeng Senior Member Jiri Join Date: Mar 2014 Posts: 200 Rep Power: 12	Hi, I created mesh in Fluent meshing (19.2) and checked skewness to be 0.971. I imported this mesh into Fluent (19.2) where there was warning the skewness is 1 ! I struggled with this also in ANSYS Meshing: in ANSYS meshing skewness was 0.98 and after importing into Fluent it was higher 0.99. What is the reason Fluent shows another skewness (usually higher) than in meshing? How shall I be sure about mesh parameters before importing to Fluent?

November 14, 2018, 03:05		#2
Jiricbeng Senior Member Jiri Join Date: Mar 2014 Posts: 200 Rep Power: 12	I figured out the reason: parallelization. Parallel distribution leaded to skewness 1, serial mode leaded to the same skewness as in the Fluent meshing - 0.971. BlnPhoenix likes this.

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January 10, 2019, 11:19		#3
Jiricbeng Senior Member Jiri Join Date: Mar 2014 Posts: 200 Rep Power: 12	Well, I came across a case where even in serial mode was quite different skewness than in meshing. Parallelization does not have to be the answer.