1-in transient method. in every time step should converge? or example in 100 time step,5 step dont converge is problem and make error in calculate?
2- in transient solve: residuals just descending or in addition to descending they must move in straight line?
3- my transient run time 0-20 sec. but article consider time average for 5-20 sec. because after 5 sec achieve to steady state. can i see steady state from residuals in transient run.
4- for my run , at first 5 sec calculate and after finish 5 sec. i active time statistic for time average from 5-20 sec