In physics and engineering, mass flow rate is the mass of a substance which passes through a given surface per unit of time. Its unit is kilogram per second in SI units, and slug per second or pound per second in US customary units. The common symbol is (pronounced "m-dot"), although sometimes μ (Greek lowercase mu) is used.
Sometimes, mass flow rate is termed mass flux or mass current, see for example Fluid Mechanics, Schaum's et al. In this article, the (more intuitive) definition is used.
Read more about Mass Flow Rate: Definition, Alternative Equations, Usage, Analogous Quantities
Famous quotes containing the words mass, flow and/or rate:
“The mass never comes up to the standard of its best member, but on the contrary degrades itself to a level with the lowest.”
—Henry David Thoreau (1817–1862)
“Only the flow matters; live and let live, love and let love. There is no point to love.”
—D.H. (David Herbert)
“We all run on two clocks. One is the outside clock, which ticks away our decades and brings us ceaselessly to the dry season. The other is the inside clock, where you are your own timekeeper and determine your own chronology, your own internal weather and your own rate of living. Sometimes the inner clock runs itself out long before the outer one, and you see a dead man going through the motions of living.”
—Max Lerner (b. 1902)