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Mass Flow Rate

Written by Jerry Ratzlaff. Posted in Fluid Mechanics

Mass flow rate is the average velocity of an areas density for flow.

formula

\(\dot m_f = \rho v A   \)

Where:

\(\dot m_f\) = mass flow rate

\(\rho\) (Greek symbol rho) = fluid density

\(v\) = velocity

\(A\) = area

\(Q\) = volumetric flow rate

\(d_i\) = internal pipe diameter

\(\pi\) = Pi

Solve for:

\(d_i = \sqrt { \frac { 4 Q }   { \pi v}   }   \)

\(d_i = \sqrt { \frac { 4 \dot m_f}   { \pi \rho v}   }   \)