How do i initialize complete domain with one fluid
I would like to initialize my fluid domain with only one liquid(Water) before starting the simulation. I have a fluid domain and it doesn't have boundary condition like inlet, outlet conditions. It is completely surrounded by walls inside the fluid domain i have a roller.so i would like to simulate how the moving roller influences the fluid(water) inside the domain.
would anyone help me how can i do it in Ansys Fluent
should i have to patch my entire fluid domain with water ? how can i do that ?