Gravity set in incompressible single phase

Does anyone know how to set gravity in incompressible simulation? I learnt that it’s doable in multiphase simulation, but my case is single phase. And it feels very weird if gravity cannot be considered in single phase situation. Has gravity been considered by default along -z axis?


Hi @muhammadsalee4,

For incompressible, continuum, single phase simulations, the gravity direction is not defined because it’s not needed in the calculations. For more insights/useful links, please check this recent forum discussion.