Pressure difference at outlet

Nessan

Dear friends,

In my simulation the reference pressure was set to zero and the outlet was also set to zero pressure. Then hydrostatic pressure was applied in the domain. After some iterations, I check the pressure at the outlet (in CFX-Post), it is less than the specified pressure. In addtion, both the total pressure and pressure (I guess it is the relative static prssure in CFX-Post). I am doing incompressible fluid simulation and 2nd differencial scheme was used.

Thanks,