[ICEM] Hexa Meshes Distorted Surface

wildabyss · December 23, 2011, 10:21

Hi,

I'm fairly new to ICEM. I'm trying to create a hexa mesh around a half tapered wing, but the rounded wingtip is giving me a lot of grief. As you can see from the images, the mesh around the wingtip is distorted and always ends up distorted at the same spot no matter how I play with the blocking parameters.

Anyone knows how this could happen and can offer a hint on how to resolve this?

Thanks!

PSYMN · December 24, 2011, 10:13

Your 4th image shows the problem...

You have the two surface projected edges running from leading to trailing edge of the wing tip...

Surface projected edges project their nodes to the nearest surface. As it gets close to the back of your wing tip, the nearest surface is just not the one you were hoping for.

You can control this better with split edges. These will let you put control points (linear or spline) along those two surface projected edges and control how they fall along the wing tip. Guide them with a few points so that they are closer to the surface you want...

wildabyss · December 24, 2011, 11:44

Ha! Gotcha!

December 24, 2011, 10:13	Projecting to the nearest surface...	#2
PSYMN Senior Member Simon Pereira Join Date: Mar 2009 Location: Ann Arbor, MI Posts: 2,663 Blog Entries: 1 Rep Power: 47	Your 4th image shows the problem... You have the two surface projected edges running from leading to trailing edge of the wing tip... Surface projected edges project their nodes to the nearest surface. As it gets close to the back of your wing tip, the nearest surface is just not the one you were hoping for. You can control this better with split edges. These will let you put control points (linear or spline) along those two surface projected edges and control how they fall along the wing tip. Guide them with a few points so that they are closer to the surface you want... __________________ ----------------------------------------- Please help guide development at ANSYS by filling in these surveys Public ANSYS ICEM CFD Users Survey This second one is more general (Gambit, TGrid and ANSYS Meshing users welcome)... CFD Online Users Survey

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December 24, 2011, 11:44		#3
wildabyss New Member Jimmy Join Date: Feb 2011 Posts: 9 Rep Power: 15	Ha! Gotcha!