\(UA=\left(\text{UA}\right)_{d}\left(\frac{{\dot{m}}_{g}}{{\dot{m}}_{\text{gd}}}\right)^{0.65}\left(\frac{F}{F_{d}}\right)\left(\frac{{\dot{m}}_{s}}{{\dot{m}}_{\text{sd}}}\right)^{0.15}\) \(\left(19\right)\)