The mass flow rate is the mass of a liquid substance passing per unit time. In other words, Mass flow rate is defined as the rate of movement of liquid mass through a unit area. The mass flow is directly depended on the density, velocity of the liquid and area of cross-section. It is the movement of mass per unit time. The mass flow is denoted by m and the units in kg/s.
The mass flow formula is given by,
ρ = density of fluid,
V = velocity of the liquid, and
A = area of cross-section
Determine the mass flow rate of a given fluid whose density is 800 kg/m3, velocity and area of cross-section is 30 m/s and 20cm2 respectively.
Given values are,
ρ = 800kg/m3
V = 30m/s and
A = 20cm2
The mass flow rate formula is given by,
m = ρVA
m = 800 × 30 × 0.20
m = 4800 kg/s