[Nek5000-users] Mesh modification in the periodic hill tutorial

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

Thanks for the feedback.  You are right, the equation given in the tutorial is incorrect.  The code, however is correct, yielding a y’ of about 0.99 at x,y = 0.  The tutorial page has been fixed.

For any future issues, we encourage the community to open an issue via github.


From: Nek5000-users [mailto:nek5000-users-bounces at lists.mcs.anl.gov] On Behalf Of nek5000-users at lists.mcs.anl.gov
Sent: Tuesday, June 12, 2018 7:09 AM
To: nek5000-users at lists.mcs.anl.gov
Subject: [Nek5000-users] Mesh modification in the periodic hill tutorial


Hello Everyone,

                        I am a brand new user of Nek5000. I started off with the periodic hill tutorial. In the mesh modification section, the expression y'(x,y) = y + (3-y)(A + A\tanh(|x-B|-C)) where A,B,C are 0.166,4.5 and 3.5

respectively is yielding y' ~ 0.88 for x,y = 0. But, as far as i think as the hill height is chosen to be 1, the expression should yield a value (y') >=1 for x=0 and all 0<=y<=3. Kindly, help me regarding this.


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