Flow velocity

In continuum mechanics the macroscopic velocity, also flow velocity in fluid dynamics or drift velocity in electromagnetism, is a vector field used to mathematically describe the motion of a continuum. The length of the flow velocity vector is the flow speed and is a scalar.It is also called velocity field; when evaluated along a line, it is called a velocity profile (as in, e.g., law of the wall). In continuum mechanics the macroscopic velocity, also flow velocity in fluid dynamics or drift velocity in electromagnetism, is a vector field used to mathematically describe the motion of a continuum. The length of the flow velocity vector is the flow speed and is a scalar.It is also called velocity field; when evaluated along a line, it is called a velocity profile (as in, e.g., law of the wall). The flow velocity u of a fluid is a vector field which gives the velocity of an element of fluid at a position x {displaystyle mathbf {x} ,} and time t . {displaystyle t.,} The flow speed q is the length of the flow velocity vector