Added semi-empirical model for rotary vacuum pump power estimation.
Added semi-empirical model for rotary vacuum pump power estimation.

kennethdecker/MagnePlane,andipeng/MagnePlane,kennethdecker/MagnePlane,andipeng/MagnePlane,jcchin/MagnePlane,jcchin/Hyperloop_v2,jcchin/Hyperloop_v2,jcchin/MagnePlane