[Aashi171185]

Sir in my sloshing analysis i came across inverted pressure levels as at time t=0 sec (kind of before loading) all the pressure shown is only hydro-static pressure. but when i do the analysis of closed tank with fluid height 0.5 m its hydro-static p would be around 4895 [pa] which is max at bottom and gradually decreasing towards 0 value but in results it shows opposite pressure levels as shown in fig cfx hydro-static.
and when the same analysis is done with small opening on top wall with the same fluid height it shows correct pressure levels as shown in cfx hydro-static 2. why is this happen? is it mandatory to perform the closed tank analysis with small opening in cfx? or is it any other pressure setting issues??????

[Cheese]

Did you change the reference pressure? Try to plot the absolute pressure for the first simulation " cfx hydro-static"

Both results are the same. The static pressure is increasing downwards. I do not see the problem.

[Aashi171185]

Sir how these results seem to be same and why in this case the static pressure is decreasing downwards as my reference pressure is same in both the cases. i think they are inverted as compared with each other
how can i change the pressure level setting i want that static pressure decreases upward like at bottom 4606[pa] and at fluid surface 0.0[pa]. can any one please tell me

[Cheese]

Originally Posted by Aashi171185

Sir how these results seem to be same and why in this case the static pressure is decreasing downwards as my reference pressure is same in both the cases.

In which scenario the pressure is decreasing downwards? In both pictures the values are rising downwards. Since you have negative values in the first simulation i would have expect another reference pressure. Did you try to plot the absolute pressure in cfd post? If it´s not the reference i do not know the answer. May someone else have an idea.