Thanks for your answer, but I mean set_forcing subroutine, which make ffx to keep u_bar=1. Isn't it? Best regards, Mark вторник, 29 августа 2017г., 18:53 +07:00 от [email protected] :

Hi Mark,

p54/55 control mass flux (i.e., keep mass flux constant).

ffx keeps the body force constant.

Thus, using p54/55 will definitely exhibit better control of the mass flux.

hth, Paul

---------------------------------------------------------------------- From: Nek5000-users < [email protected] > on behalf of [email protected] < [email protected] > Sent: Monday, August 28, 2017 10:06:23 PM To: nek5000-users Subject: [Nek5000-users] Set forcing in .rea and in .usr   Hi, Neks!

Could you please shortly explain me, what is the difference between set forcing in .rea (p54&p55) and in .usr (set_forcing) files. In fact, via testing these two options I found that in case of .rea file u_bar is kept more precisely.

Best regards, Mark _______________________________________________ Nek5000-users mailing list [email protected] https://lists.mcs.anl.gov/mailman/listinfo/nek5000-users