I think I figured it out. Maybe there’s too little grid at the outlet. I couldn’t refine the mesh due to particle size limitations, so I increased the size of outlet to make the flow rate as same as what I set.
I think I figured it out. Maybe there’s too little grid at the outlet. I couldn’t refine the mesh due to particle size limitations, so I increased the size of outlet to make the flow rate as same as what I set.