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Hi Neks,<br>
<br>
I'm trying to solve a simple 2D cavity problem with Nek and I've got
the following error:<br>
<br>
EXIT: E INVALID BC FOUND in genfast 64<br>
<br>
<ul>
<li>For your info here is the genbox script I used for the mesh:</li>
</ul>
<br>
test5.rea<br>
2 spatial dimension<br>
1 number of fields<br>
#<br>
#=======================================================================<br>
#<br>
box_1 1st character .ne. "c" or "C"<br>
-8 -8 1 nelx,nely,nelz <br>
0 1 1 x_0 x_Nelx ratio<br>
0 1 1<br>
W ,W ,W ,w V bc's ! west,east,south,north,bottom,top<br>
<br>
<ul>
<li>Also, this is the userbc part in user file:</li>
</ul>
c-----------------------------------------------------------------------<br>
subroutine userbc (ix,iy,iz,iside,ieg)<br>
include 'SIZE'<br>
include 'TSTEP'<br>
include 'INPUT'<br>
include 'NEKUSE'<br>
<br>
ux=1.<br>
uy=0. <br>
<br>
return<br>
end<br>
<br>
This should be a straightforward problem but am not sure which part
I'm getting wrong. Any advice is appreciated. Hopefully, I can make
a sample tutorial for this well-known problem and share with new
comers.<br>
<br>
Thanks,<br>
Saleh<br>
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