Advection definition
Advection means the mass transport of a solute as it flows along with the ground water. Advection is the dominant transport process that drives solute migration in the ground water. The amount of solute that is being transported is a function of its concentration in the ground water and the quantity of ground water flow. The velocity at which a solute is transported through the ground water may not be the same as the velocity of the ground water due to other fate and transport processes. The velocity of water in the saturated zone is governed by three factors, each of which is characteristic of the specific ground water flow system: hydraulic gradient, hydraulic conductivity, and effective porosity. Advection is used to calculate dispersion and down-gradient plume migration. While not destroying or immobilizing contaminants, advection can affect the rate of reactions that contribute to natural attenuation.
Examples of Advection in a sentence
Graphical Processing Unit (GPU), Advection- Dispersion (AD), Particle Tracking (PT), 3D, Sediment Transport (ST) and Water Quality (WQ) are available as optional modules- refer to the Optional Modules Section for information on these advanced features.
Advection Dispersion (AD) Module Provides access to the TUFLOW AD Module, for the simulation of conservative constituents.
Advection dominated transport of polycylic aromatic hydrocarbons in amended sediment caps.