I'm trying to make gas flow through a tube. I've watched many videos demonstrating similar procedure. And they simply add a cube or any other object, go to the 'physics properties', click 'fluid', then choose type as 'obstacle'
In their screens, the options are "Control, Particle, Outflow, Inflow, Obstacle, Fluid, Domain, None".
With my Blender 2.82, if I follow the same procedure, I see "None, Domain, Flow, Effector". Where is it?