- coefficient of pressure diffusion
- 加压扩散系数
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
coefficient — 1. The expression of the amount or degree of any quality possessed by a substance, or of the degree of physical or chemical change normally occurring in that substance under stated conditions. 2. The ratio or factor that relates a quantity… … Medical dictionary
diffusion coefficient — the number of milliliters of a gas that will diffuse at a distance of 0.001 mm over a square centimeter surface per minute, at 1 atm of pressure. The diffusion coefficient for any given gas is proportional to the solubility and molecular weight… … Medical dictionary
Molecular diffusion — This article is about spontaneous dispersion of mass. For a more generic treatment of diffusion, see Diffusion. Diffusion from a microscopic and macroscopic point of view. Initially, there are solute molecules on the left side of a barrier… … Wikipedia
Fick's law of diffusion — Fick s laws of diffusion describe diffusion and can be used to solve for the diffusion coefficient D . They were derived by Adolf Fick in the year 1855. First law Fick s first law relates the diffusive flux to the concentration field, by… … Wikipedia
Maxwell–Stefan diffusion — The Maxwell–Stefan diffusion (or Stefan–Maxwell diffusion) is a model for describing diffusion in multicomponent systems. The equations that describe these transport processes have been developed independently and in parallel by James Clerk… … Wikipedia
Eddy diffusion — or eddy dispersion or turbulent diffusion is any diffusion process by which substances are mixed in the atmosphere or in any fluid system due to eddy motion. [IUPAC Compendium of Chemical Terminology 2nd Edition (1997) Gold Book [http://www.iupac … Wikipedia
gas — gasless, adj. /gas/, n., pl. gases, v., gassed, gassing. n. 1. Physics. a substance possessing perfect molecular mobility and the property of indefinite expansion, as opposed to a solid or liquid. 2. any such fluid or mixture of fluids. 3. any… … Universalium
Mass diffusivity — This article is about coefficient of molecular diffusion of mass. For other uses, see Diffusivity (disambiguation). Diffusivity or diffusion coefficient is a proportionality constant between the molar flux due to molecular diffusion and the… … Wikipedia
Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… … Wikipedia
Turbulence — In fluid dynamics, turbulence or turbulent flow is a fluid regime characterized by chaotic, stochastic property changes. This includes low momentum diffusion, high momentum convection, and rapid variation of pressure and velocity in space and… … Wikipedia
Nuclear magnetic resonance in porous media — Nuclear magnetic resonance (NMR) in porous media covers the application of using NMR as a tool to study the structure of porous media and various processes occurring in them.[1] This technique allows the determination of characteristics such as… … Wikipedia