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Calculation of Mass Flow Rate Equation

Fluids Dynamics and Engineering
Hydraulic and Pneumatic Knowledge

Calculation of Mass Flow Rate Equation

Mass flow rate of a system is a measure of the mass of fluid passing a point in the system per unit time. The mass flow rate is related to the volumetric flow rate.

Eq. 1
Mass Flow Rate Equation
w = ρ · g · δ³ · w / ( 3 · v )

Input(s)
ρ = Density (kg/m³)
g = Gravitational Acceleration (m/s²)
δ = Film Thickness (m)
w = Width (m)
v = Kinematic Viscosity (m²/s)
w = Mass Flow Rate (kg/s)

Source:

Bird, R.B., Stewart, W.E., and Lightfoot, E.N. (2002). Transport Phenomena (Second ed.). John Wiley & Sons, Chapter: 2, Page: 47.

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