work done so far: i have a heat sink placed in a box domain, this box has an inlet and outlet points, i have run a simple simulation where i set the inlet as velocity and outlet as pressure outlet.

velocity value is 10ms

pressure value at 0.0pa

i ran this and got really high total pressure in scalar, inlet being approximately 3000 and outlet being 10.

1) why is the pressure so high?

2) after that is fixed how do i determine the pressure drop?