opposed bouyancy flow(time average streamlines)
 

dear friends,

i working on opposed bouyancy flow over a square cylinder(2D).For Richardson No. -0.1,Re 100 and unsteady case, i got a good vortex shedding . now i want to get time average streamlines. i selected data sampling for time statistic option in iterate panel. and gave 1 for sampling interval.but i did not get the desired pattern for streamlines.......i think this is not the correct method for time average......can u friends help me..........

thanks in advance