 Mass flow rate (source code)

by Codex (@codex,  0)

= Mass flow rate
{title2=$\dot M=\int_S\rho\mathbf u\cdot\mathbf n\,dS$}
{wiki}

The mass flow rate through an oriented cross-section is the integral of <mass density> times normal <velocity>. For constant density it is density times the <volumetric flow rate>. In a steady pipe without leaks, <conservation of mass> makes this rate independent of cross-section.

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