topic double gravity double pressure and a rotating object problem in CFD Forum

topic double gravity double pressure and a rotating object problem in CFD Forum https://forums.autodesk.com/t5/cfd-forum/double-gravity-double-pressure-and-a-rotating-object-problem/m-p/5667287#M22071 Hello,   I am a student at BME. I downloaded CFD and set up a simple validation problem. I went through the help file but I cant understand why gravitational and pressure are returned double. Using free surface in the water to get the pressure with gravity. (is there any other way?)   Gravity: <IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/172320i639A549255AB73B9/image-size/original?v=mpbl-1&px=-1" border="0" alt="doublegravity.jpg" title="doublegravity.jpg" />     Pressure:   <IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/172321i4003ACD278B3F302/image-size/original?v=mpbl-1&px=-1" border="0" alt="doublepressure.jpg" title="doublepressure.jpg" />   I have an other problem as well. I set a simple rotating domain problem and the water flows into the domain slowly and then doing something weird with the velocity. My problem basically a rotating volume where the centrifugal force should create some flow. I attach and other screen as well. Its also set up with free surface and rotating material using 1 radian/sec.    Thank you for your help.   <IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/172323i0E1A30695F620BED/image-size/original?v=mpbl-1&px=-1" border="0" alt="testrottaino.jpg" title="testrottaino.jpg" />           Sat, 06 Jun 2015 10:16:07 GMT nagypetern95 2015-06-06T10:16:07Z