[Nek5000-users] IFCHAR option in rea file

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

Hello,

  I have been using IFCHAR = TRUE in my simulations. The CFL number is 
around
1.2 and the computations appear to go on nicely. I would like to know
if the flow field computed using IFCHAR=TRUE option is different than the
one obtained with IFCHAR=FALSE (albeit with smaller dt)? If yes, can the 
difference
be significant?

Many thanks,
NN