Smallest mesh size

November 28, 2008, 16:23

Hello,

I'm trying to mesh a 2D airfoil in Gambit, I need an extremely fine mesh near the boundary - I will use this mesh in a DNS calculation.

I have problems using a grid space of 1e-07 in GAMBIT, the mesh is in meters.

Any idea why I have such a limitation and how may I avoid this ?

BTW in GRIDGEN it seems to be no problem with a 1e-07 meters division.

Thanks.

November 30, 2008, 08:07

Hi

Gambit works in mm, not in meters. And you have to use boundary layer in place of directly putting a grid if you want fine grid. But I doubt grid size of 10e-7 to be sufficiently fine for DNS

Neo

December 5, 2008, 05:29

What is DNS???

November 28, 2008, 16:23	Smallest mesh size	#1
cfd_newbie Guest Posts: n/a	Hello, I'm trying to mesh a 2D airfoil in Gambit, I need an extremely fine mesh near the boundary - I will use this mesh in a DNS calculation. I have problems using a grid space of 1e-07 in GAMBIT, the mesh is in meters. Any idea why I have such a limitation and how may I avoid this ? BTW in GRIDGEN it seems to be no problem with a 1e-07 meters division. Thanks.

November 30, 2008, 08:07	Re: Smallest mesh size	#2
Neo Guest Posts: n/a	Hi Gambit works in mm, not in meters. And you have to use boundary layer in place of directly putting a grid if you want fine grid. But I doubt grid size of 10e-7 to be sufficiently fine for DNS Neo

December 5, 2008, 05:29	Re: Smallest mesh size	#3
Kostas Pan Guest Posts: n/a	What is DNS???

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