Hi users,, I am using CFX 5.6 and I am simulating sloshing. I have a tank with 2 m in length and 2 m in diameter with a baffle inside it (to be set on a truck). The baffle has two openings, one in the top and the other in the bottom. I did't draw the walls, I just draw the fluid domain. I defined the baffle as a space (I imported it from Autocad). Then, I defined a mixture as my fluid ( air at 25 C and water at 25 C) with an approperiate mass fractions. After that I defined the bounding surfaces as walls and gave them a velocity with respect to time (transient) to simulate the tanker movement. However, I got negative pressure on the baffle and even inside the domain. So do you think that my simulation is rong??? Thanx in advannce,,,, Zaher

See my reply to your previous post below....