[Nek5000-users] CFL

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

We print out the maximum CFL number in the domain. See C in this example:

Step      3, t= 1.5000000E-02, DT= 5.0000000E-03, C=  0.128 1.9712E+00 9.8788E-01

The write statement is correct. Here, we're using a mixed '1pE/F' format and the 'F' formatted C gets multiplied by 10. Not many people are aware of that but try it out.

hth,
Stefan

 


On Apr 15, 2010, at 12:58 PM, nek5000-users at lists.mcs.anl.gov wrote:

> Hello all,
> 
> Is it possible to have the maximum CFL # (even better the maximum in
> each direction x,y,z) written out to the screen?  I see the line in
> "drive2.f":
> WRITE (6,100) ISTEP,TIME,DT,COURNO/10,TTIME,TTIME_STP
> 
> It seems this is the maximum CFL #, but I don't understand the "/10".
> 
> Cheers,
> Frank 
> 
> -- 
> Frank Herbert Muldoon, Ph.D. Mechanical Engineering
> Technische Universität Wien (Technical University of Vienna)
> Inst. f. Strömungsmechanik und Wärmeübertragung (Institute of Fluid
> Mechanics and Heat Transfer)
> Resselgasse 3
> 1040 Wien
> Tel: +4315880132232
> Fax: +4315880132299 
> Cell:+436765203470
> fmuldoo (skype)
> http://tetra.fluid.tuwien.ac.at/fmuldoo/public_html/webpage/frank-muldoon.html
> 
> _______________________________________________
> Nek5000-users mailing list
> Nek5000-users at lists.mcs.anl.gov
> https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users