M = 0.062447203*d^2*ε*α*(ΔP/ρ)^0.5ρM^2 = 0.062447203^2*d^4*ε^2*α^2*ΔPΔP = ρM^2/(0.062447203^2*d^4*ε^2*α^2)
M=0.062447203*d^2*ε*α*(ΔP/ρ)^0.5ΔP=ρ[M/(0.062447203*d^2*ε*α)]^2
