[Shadab]

Hello every one,
In many cases we know the flow rate into and out of the domain, So can’t we able to give constant fixed velocity at inlet and at the outlet like it is possible to define in fluent. In my case it is a heat transfer problem by using bouyantSimpleFoam. The area of the inlet and outlet both are different and they also have different velocity and temperature too. when I run the simulation at the first iteration it self it is giving mass inflow is not equal to mass outflow. by following the mass conservation principle I have try to change the temperature at the outlet, there by thinking as changing the density pass the conservation principle. Still I am not succeed in this, Please anyone who have try this they can help me or give me some suggestion to get me out of this problem.