[Nek5000-users] Nek5000-users Digest, Vol 14, Issue 29

[nek5000-users at lists.mcs.anl.gov]

Assuming you know the locations where you want to compute the stress tensor you can use our interpolation tool in NEK. You just have to provide a list of points and field and you'll get the interpolated values back. This works in parallel and you don't need to worry about where these points are.

Stefan

On Apr 19, 2010, at 6:05 PM, nek5000-users at lists.mcs.anl.gov wrote:

> Stefan,
> 
> Many thanks for your reply. I am trying to find the velocity gradients near the wall. I identified the walls of interest and have collected the element number and faces of each of them. And then approximately I try to compute du/dy, so I tried to access the velocity at the GLL points and the co-ordinates.
> 
> I just found that nek has a routine comp_gije(), which I believe is to compute the gradients. I now plan to use that to compute the gradients near the wall. In a earlier mail, Paul had mentioned the different ways of computing the gradients and I am looking at few of them. 
> 
> Regards
> Shriram Jagannathan
> 
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