diffusion velocity

diffusion velocity

[də′fyü·zhən və′läs·əd·ē]
(fluid mechanics)
The relative mean molecular velocity of a selected gas undergoing diffusion in a gaseous atmosphere, commonly taken as a nitrogen (N2) atmosphere; a molecular phenomenon that depends upon the gaseous concentration as well as upon the pressure and temperature gradients present.
The velocity or speed with which a turbulent diffusion process proceeds as evidenced by the motion of individual eddies.
References in periodicals archive ?
Moreover, higher electrical conductivity and better contact, corresponding to a slower diffusion velocity of the [I.
Increasing temperature could improve both of the diffusion velocity of carbonium ions (+C[H.
The evaluation of enthalpy values allows an analysis of the energy contribution that is added to the process which is responsible for altering the water diffusion velocity (BAYRAM et al.
x] is not the diffusion velocity of the particle but the rate with which changes [increment of x], so [F.
alpha]] are taken into account and then the total velocity is divided into the velocity of centre of gravity w and the diffusion velocity [u.
Chi], which is a reciprocal Peclet number, gives the ratio of the diffusion velocity and the maximum velocity of the swelling front; [[Phi].

Full browser ?