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stonescar February 1, 2013 08:37

Irregular mesh
 
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Hi,
I am very new to CFD and I am trying to just make a domain and generate waves in this domain. So when I try to make a mesh, it looks kind of weird.
Why does spots with higher density of cells occur at random places, as seen in attached picture.

I guess there's a simple setting or something I haven't checked.

Sorry for a very newbie question.

Sam0508 February 7, 2013 02:55

1 Attachment(s)
Quote:

Originally Posted by stonescar (Post 405494)
Hi,
I am very new to CFD and I am trying to just make a domain and generate waves in this domain. So when I try to make a mesh, it looks kind of weird.
Why does spots with higher density of cells occur at random places, as seen in attached picture.

I guess there's a simple setting or something I haven't checked.

Sorry for a very newbie question.

-----------------------------------------------------------------------
Can you check the surface growth rate? ref below

Regards,
Sam0508

lava12005 February 12, 2013 06:57

Hmm before going to the volume mesh, can you show us the surface mesh /intial surface of the domain? (make sure the mesh if on to be seen)
I suspect there is something not righ even with the surface mesh / initial surface

grad@itu February 27, 2013 04:02

You can try to check these values,

* Surface curvature (reduce the default value - this put more less points around the circle)
* Surface size (increase the cell size - increase the minimum triangle size)

and can you show geometry screen?

i think geometry have some circular feature edges on the extensive areas like a point,
and i think some close proximity detail in extensive meshed line..


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