aitor.amatriain
Subscriber
As Rob says, it makes no sense to include gravity in a direction different to the axis of revolution. Your problem is 3D, and, as you mention in your previous message, you should consider multiphase simulations if you are expecting to have a liquid/gas interface (for example, if mass flow rate is low and you reach a static solution). As a first test, VOF steady simulation should give you a good estimate.