I have choose the inflation, but the inflations change in the first layers, but do no

hitzhwan · May 5, 2020, 10:24

I have choose the inflation, but the inflations change in the first layers, but do not change in the later , what is the reason, who can tell me ?

AtoHM · May 6, 2020, 01:13

What do you mean by "do not change in the later"?

hitzhwan · May 6, 2020, 11:06

Quote:

Originally Posted by AtoHM

What do you mean by "do not change in the later"?

You see the meshes under the red line I drew are all the inflations, but they do not grow according to the growth rate.

AtoHM · May 9, 2020, 04:05

I assume this is ansys meshing. I dont use that, so its just a guess but there might be a global setting for the boundary layers somewhere which overwrites the values you gave here?
I'm thinking like there might be a minimum layer height defined somewhere. Now if it starts from there and uses the growth ratio you specified, it reaches your specified max height earlier and its then constant for the upper layers?

hitzhwan · May 9, 2020, 09:55

Quote:

Originally Posted by AtoHM

I assume this is ansys meshing. I dont use that, so its just a guess but there might be a global setting for the boundary layers somewhere which overwrites the values you gave here?
I'm thinking like there might be a minimum layer height defined somewhere. Now if it starts from there and uses the growth ratio you specified, it reaches your specified max height earlier and its then constant for the upper layers?

You may mean the maximum layer height？ What do you use for meshing？

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May 6, 2020, 01:13		#2
AtoHM Senior Member M Join Date: Dec 2017 Posts: 704 Rep Power: 13	What do you mean by "do not change in the later"?

May 9, 2020, 04:05		#4
AtoHM Senior Member M Join Date: Dec 2017 Posts: 704 Rep Power: 13	I assume this is ansys meshing. I dont use that, so its just a guess but there might be a global setting for the boundary layers somewhere which overwrites the values you gave here? I'm thinking like there might be a minimum layer height defined somewhere. Now if it starts from there and uses the growth ratio you specified, it reaches your specified max height earlier and its then constant for the upper layers?