[Nek5000-users] Time derivative of Scalar field

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

Hello Neks and Paul,

I wanted to find out the time derivative of Scalar field in my Rayleigh
Benard calculations.

I am attaching my test case in which I have used common block in the .usr
file usrchk subroutine to compute the derivative at each time step. I
believe vxlag() stores the previous time step values. But this leads to
error in my output.

I would also like to know how to print out the values of dcdt, along with
my scalars when I am writing out my .fld files.

Thanks a lot,
Saikat

Saikat Mukherjee,
PhD Student,
Paul Research Group - http://www.me.vt.edu/mpaul/
Engineering Science and Mechanics,
Virginia Tech.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20170514/6081d5de/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: box20test.usr
Type: application/octet-stream
Size: 9191 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20170514/6081d5de/attachment-0006.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: box20test.rea
Type: application/octet-stream
Size: 736143 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20170514/6081d5de/attachment-0007.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: box20test.f99999
Type: application/octet-stream
Size: 6826120 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20170514/6081d5de/attachment-0008.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: output
Type: application/octet-stream
Size: 34783 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20170514/6081d5de/attachment-0009.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: SIZE
Type: application/octet-stream
Size: 3499 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20170514/6081d5de/attachment-0010.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: box20test.map
Type: application/octet-stream
Size: 27988 bytes
Desc: not available
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20170514/6081d5de/attachment-0011.obj>