The Net Positive Suction Head of a pump is defined as
NPSH=(pi-pv)/(g0*rho)
pi : pressure at pump inlet [Pa]
pv : vapore pressure of a medium (propellant) [Pa]
rho : density of a medium (propellant) [kg/m^3]
g0 : gravitational constant [m/s^2]
Why is there g0 in this equation?
It makes complete sense here on earth, but for a system in space shouldn't NPSH better be calculated with the acceleration of the vehicle?