Gravity Vector in CFX
Hi,
I'm trying to model a buoyant flow. My geometry is "upside down" (i.e. the +y is supposed to be "down"). Anyway, for my gravity vector I put the following: x: 0 y:+9.81 m/s z:0 Since I am doing a negatively buoyant flow, the flow is supposed to go in the direction of +y, however, it seems to be going the other way. Has anyone else had this problem when using a positive gravity vector for an "upsidedown" geometry? 
Re: Gravity Vector in CFX
Just check your default density value, try to set it to be the value from solverrunning monitored value (in the righthand side of solver)

Re: Gravity Vector in CFX
I am doing Boussinesq so I don't have a reference density...only a reference Temp.

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