advection equation

平流方程

Atmospheric Sciences (English-Chinese) dictionary. 2014.

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  • Advection — Advection, in chemistry, engineering and earth sciences, is a transport mechanism of a substance, or a conserved property, by a fluid, due to the fluid s bulk motion in a particular direction. An example of advection is the transport of… …   Wikipedia

  • Équation de Navier-Stokes — Équations de Navier Stokes Pour les articles homonymes, voir Stokes. En mécanique des fluides, les équations de Navier Stokes sont des équations aux dérivées partielles non linéaires qui décrivent le mouvement des fluides dans l approximation des …   Wikipédia en Français

  • Advection — L advection est le transport d une quantité scalaire ou vectorielle conservée, par un champ vectoriel. Un exemple est le transport de matière polluante par le flux d une rivière. En météorologie et en océanographie, l advection se réfère surtout… …   Wikipédia en Français

  • Partial differential equation — A visualisation of a solution to the heat equation on a two dimensional plane In mathematics, partial differential equations (PDE) are a type of differential equation, i.e., a relation involving an unknown function (or functions) of several… …   Wikipedia

  • Convection–diffusion equation — The convection–diffusion equation is a parabolic partial differential equation combining the diffusion equation and the advection equation, which describes physical phenomena where particles or energy (or other physical quantities) are… …   Wikipedia

  • Continuity equation — A continuity equation in physics is a differential equation that describes the transport of a conserved quantity. Since mass, energy, momentum, electric charge and other natural quantities are conserved under their respective appropriate… …   Wikipedia

  • Omega equation — The omega equation is of great importance in meteorology and atmospheric physics. It is a partial differential equation for the vertical velocity, ω, which is defined as a Lagrangian rate of change of pressure with time, that is, . The equation… …   Wikipedia

  • Wave equation — Not to be confused with Wave function. The wave equation is an important second order linear partial differential equation for the description of waves – as they occur in physics – such as sound waves, light waves and water waves. It arises in… …   Wikipedia

  • Vorticity equation — The vorticity equation is an important prognostic equation in the atmospheric sciences. Vorticity is a vector, therefore, there are three components. The equation of vorticity (three components in the canonical form) describes the total… …   Wikipedia

  • Streamline diffusion — Streamline diffusion, given an advection diffusion equation, refers to all diffusion going on along the advection direction. Explanation If we take an advection equation, for simplicity of writing we have assumed , and we may add a diffusion term …   Wikipedia

  • Upwind scheme — In computational fluid dynamics, the upwind schemes are any of a class of discretization methods to solve hyperbolic partial differential equations numerically. The wave equation, the advection equation, the Euler equations in fluid dynamics, etc …   Wikipedia

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