continuum mechanics the flow velocity in fluid dynamics, also macroscopic velocity in statistical mechanics, or drift velocity in electromagnetism, is...

in particular fluid dynamics, the volumetric flow rate (also known as volume flow rate, or volume velocity) is the volume of fluid which passes per unit...

flow. Flow may be measured by measuring the velocity of fluid over a known area. For very large flows, tracer methods may be used to deduce the flow rate...

viscous term (proportional to the gradient of velocity) and a pressure term—hence describing viscous flow. The difference between them and the closely...

at the Fermi velocity, resulting in an average velocity of zero. Applying an electric field adds to this random motion a small net flow in one direction;...

flow (isochoric flow) refers to a flow in which the material density of each fluid parcel — an infinitesimal volume that moves with the flow velocity...

involves the calculation of various properties of the fluid, such as flow velocity, pressure, density, and temperature, as functions of space and time...

turbulence or turbulent flow is fluid motion characterized by chaotic changes in pressure and flow velocity. It is in contrast to laminar flow, which occurs when...

V ˙ {\displaystyle {\dot {V}}} or Q = volume flow rate, ρ = mass density of the fluid, v = flow velocity of the mass elements, A = cross-sectional vector...

radius of the spherical object (meters); ⁠ v {\displaystyle v} ⁠ is the flow velocity relative to the object (meters per second). Stokes' law makes the following...