We are conducting an analysis on solar still. We consider the gravitational direction as -9.81 in the Y direction. The geometry and coordinate axes are as shown in the figure.
1) What should be the mesh orientation? There are different opinions in the literature. I am asking this question to make sure.
2) For transient analysis, what should be the time step size and the total duration of the real analysis, and what do they depend on?
I would appreciate your assistance.