# Mass Flow Rate

Mass flow rate is the average velocity of a mass that passes by a point. It is often abbreviated as the letter m with a dot over it, ṁ. In engineering, mass flow rate is often used, along with the conservation of mass to determine how much product moves through a pipe or duct. The calculation and formula for determining the mass flow rate where the flow area and density are known.

## Mass Flow Rate formula\(\large{ \dot m_f = \rho v A }\) Where: \(\large{ \dot m_f }\) = mass flow rate \(\large{ A }\) = area of cross section \(\large{ \rho }\) (Greek symbol rho) = fluid density \(\large{ v }\) = fluid velocity |