mechanical dispersion

   The process whereby solutes are mechanically mixed during advective transport caused by the velocity variations at the microscopic level. Synonymous with hydraulic dispersion [22].

A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. . 2002.

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  • mechanical dispersion, coefficient —    The component of mass transport flux of solutes caused by velocity variations at the microscopic level. Synonymous with convective diffusion [22] …   Lexicon of Cave and Karst Terminology

  • dispersion, mechanical —    See mechanical dispersion …   Lexicon of Cave and Karst Terminology

  • dispersion coefficient —    1. A measure of the spreading of a flowing substance due to the nature of the porous medium, with its interconnected channels distributed at random in all directions [22].    2. The sum of the coefficients of mechanical dispersion and… …   Lexicon of Cave and Karst Terminology

  • Mechanical alloying — (MA) is a solid state powder processing technique involving repeated cold welding, fracturing, and re welding of powder particles in a high energy ball mill. Originally developed to produce oxide dispersion strengthened (ODS) nickel and iron base …   Wikipedia

  • Dispersion stability — Dispersions are unstable from the thermodynamic point of view, however, they can be kinetically stable over a large period of time, which determines their shelf life. This time span needs to be measured in order to ensure the best product quality …   Wikipedia

  • Mechanical bond — The mechanical bond is a type of chemical bond found in mechanically interlocked molecular architectures such as catenanes and rotaxanes. Unlike classical molecular structures, interlocked molecules consist of two or more separate components… …   Wikipedia

  • hydrodynamic dispersion —    1. The spreading (at the macroscopic level) of the solute front during transport resulting from both mechanical dispersion and molecular diffusion [22].    2. The dynamic dispersion of fluid particles in flow through a porous medium due to… …   Lexicon of Cave and Karst Terminology

  • hydraulic dispersion —    See mechanical dispersion …   Lexicon of Cave and Karst Terminology

  • London dispersion force — Interaction energy of argon dimer. The long range part is due to London dispersion forces London dispersion forces (LDF, also known as dispersion forces, London forces, instantaneous dipole–induced dipole forces) is a type of force acting between …   Wikipedia

  • Dynamic mechanical analysis — Dynamic Mechanical Analyzer Acronym DMA Classification Thermal analysis Manufacturers Bose Electroforce Group, Mettler Toledo, Netzsch Instruments, PerkinElmer, TA Instruments, Triton Technology Ltd, Gabo Other techniques Related Isothermal… …   Wikipedia

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