The conservation of mass continuity tells us that the mass flow rate mdot through a tube is a constant and equal to the product of the density r velocity V and flow area A. In countries that still predominantly use imperial measurements you will commonly see ft 3 s or galmin. Flow Rate Calculator Free Math Resources Flow Fluid Flow Volumetric flow rate formula. . Solving the differential equation leads to the relation shown below where T 0 is the stagnation temperature at the throat location of the duct which is required for thermally. Sometimes mass flow rate is termed mass flux or mass current see. It is not an SI unit because it contains the non-SI unit hour. The rate at which a liquid flows will vary according to area of the pipe or channel through which it is passing and the velocity of. This parameter is very significant in motor design as larger LD values tend to result in greater erosive burning effects including n