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Momentum diffusion most commonly refers to the diffusion, or spread of momentum between particles (atoms or molecules) of matter, often in the fluid state.
This transport of momentum can occur in any direction of the fluid flow. Momentum diffusion can be attributed to either external pressure or shear stress or both.
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Momentumdiffusion most commonly refers to the diffusion, or spread of momentum between particles (atoms or molecules) of matter, often in the fluid state...
is an example of mass diffusion. Energy: the conduction of heat in a solid material is an example of heat diffusion. Momentum: the drag experienced by...
Lévy flight Molecular diffusion, diffusion of molecules from more dense to less dense areas Momentumdiffusion ex. the diffusion of the hydrodynamic velocity...
surface. Laminar flow is a flow regime characterized by high momentumdiffusion and low momentum convection. When a fluid is flowing through a closed channel...
since diffusion also plays a role in other types of high vacuum pumps. In modern textbooks, the diffusion pump is categorized as a momentum transfer...
by chaotic, stochastic property changes. This includes low momentumdiffusion, high momentum convection, and rapid variation of pressure and velocity in...
diffusivity or diffusion coefficient is usually written as the proportionality constant between the molar flux due to molecular diffusion and the negative...
quasi-random amplitudes. This quasi-random walk is responsible for a diffusion process in the momentum direction ⟨ ( Δ p n ) 2 ⟩ = 2 D cl n {\displaystyle \langle...
viscosity honey does not transfer heat through momentumdiffusion (convection) but rather through thermal diffusion (more like a solid), so melting crystallized...
Molecular diffusion, often simply called diffusion, is the thermal motion of all (liquid or gas) particles at temperatures above absolute zero. The rate...
by chaotic property changes in the flow. These include low momentumdiffusion, high momentum convection, and rapid variation of pressure and flow velocity...
two-level atoms by Doppler cooling and the heating of atoms due to momentumdiffusion from the scattering of laser photons. Here, Γ {\displaystyle \Gamma...
differential equations for momentum, heat, and mass transfer. The molecular transfer equations of Newton's law for fluid momentum at low Reynolds number (Stokes...
the diffusion pump, and the turbomolecular pump. Pumps can be broadly categorized according to three techniques: positive displacement, momentum transfer...
In physics, Knudsen diffusion, named after Martin Knudsen, is a means of diffusion that occurs when the scale length of a system is comparable to or smaller...
Turbulent diffusion is the transport of mass, heat, or momentum within a system due to random and chaotic time dependent motions. It occurs when turbulent...
mean free path of a particle. In 1859, after reading a paper about the diffusion of molecules by Clausius, Scottish physicist James Clerk Maxwell formulated...
effect takes the form of an extra high diffusion rate. When numerical diffusion applies to the components of the momentum vector, it is called numerical viscosity;...
, and has momentum nearly equal to a given momentum vector p {\displaystyle \mathbf {p} } (thus occupying a very small region of momentum space d 3 p...
Rotational diffusion is the rotational movement which acts upon any object such as particles, molecules, atoms when present in a fluid, by random changes...
first part consists in the formulation of a diffusion equation for Brownian particles, in which the diffusion coefficient is related to the mean squared...
include conservation of mass-energy, conservation of linear momentum, conservation of angular momentum, and conservation of electric charge. There are also many...
In fluid dynamics, eddy diffusion, eddy dispersion, or turbulent diffusion is a process by which fluid substances mix together due to eddy motion. These...