[ANSYS Meshing] boundary layer problems

mnazar · May 25, 2017, 14:03

hey guys
im facing a problem in my boundary layer mesh around the my shape, its becoming in this way and i dont know why
can any one help me >>>>

23-May-17 10-55-14 PM.png

23-May-17 10-55-49 PM.png

venturi · May 25, 2017, 16:00

Hi, this is pretty simple to modify.

You just have to change the "Collision Avoidance". Try, for instance, changing from "Stair Stepping" to "Layer Compression".

mnazar · May 26, 2017, 02:02

i did that he then gives me the following errors
concerning the 1st error he didnt say why its failed !!
concerning the 2nd error i dont see a badness in my inflation meshing
concerning the 3rd error i didnt understand it well
1.png
2.png
3.png

and this is my inflation and sizing :

4.png

venturi · May 26, 2017, 07:32

Well, I can't help you more than that. This errors do happen. To solve that you'll have to "play" with the meshing parameters (min and max sizes, angles, transition, pre or post inflation, ...)

mnazar · May 27, 2017, 04:16

ok no problem
thanks alot
can anyone help me /??

Kapi · May 29, 2017, 20:03

check "problematic geometry" and post here

May 25, 2017, 14:03	boundary layer problems	#1
mnazar Member hgggfh Join Date: Jan 2017 Posts: 30 Rep Power: 9	hey guys im facing a problem in my boundary layer mesh around the my shape, its becoming in this way and i dont know why can any one help me >>>> 23-May-17 10-55-14 PM.png 23-May-17 10-55-49 PM.png

May 25, 2017, 16:00		#2
venturi New Member D. N. Venturi Join Date: Jan 2013 Location: Brazil Posts: 25 Rep Power: 13	Hi, this is pretty simple to modify. You just have to change the "Collision Avoidance". Try, for instance, changing from "Stair Stepping" to "Layer Compression". mnazar likes this.

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May 26, 2017, 02:02		#3
mnazar Member hgggfh Join Date: Jan 2017 Posts: 30 Rep Power: 9	i did that he then gives me the following errors concerning the 1st error he didnt say why its failed !! concerning the 2nd error i dont see a badness in my inflation meshing concerning the 3rd error i didnt understand it well 1.png 2.png 3.png and this is my inflation and sizing : 4.png

May 26, 2017, 07:32		#4
venturi New Member D. N. Venturi Join Date: Jan 2013 Location: Brazil Posts: 25 Rep Power: 13	Well, I can't help you more than that. This errors do happen. To solve that you'll have to "play" with the meshing parameters (min and max sizes, angles, transition, pre or post inflation, ...)

May 27, 2017, 04:16		#5
mnazar Member hgggfh Join Date: Jan 2017 Posts: 30 Rep Power: 9	ok no problem thanks alot can anyone help me /??

May 29, 2017, 20:03		#6
Kapi Senior Member Join Date: Apr 2014 Location: Melbourne Posts: 584 Rep Power: 14	check "problematic geometry" and post here