capillary action

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capillary action

The spontaneous movement of a liquid up thin tubes, due to adhesive and cohesive forces and surface tension.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

capillary action

A surface tension effect shown by the elevation or depression of a liquid at the region of contact with a solid, as in capillary tubes.
Synonym: capillarity
See also: action
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
These two factors enhance the capillary flow, driving particles to the edge.
The kinetics of the response was described by the time to peak hyperaemia, expressed in seconds, and percent change in capillary flow.
There is an inverse relationship between pore size and capillary flow. Capillary flow will be most rapid through sandy soils with large pores and slowest through clayey soils with many fine pores.
Water will nevertheless move by capillary flow. This is due to adhesive and cohesive properties of water.
The fluorescein solution was pumped with a peristaltic pump through a capillary flow cell [5].
The POROMETER [3.sup.G] capillary flow permeability analyzer is a compact, bench-top instrument that measures through pores in membranes, filters, paper, plastics, ceramics, sintered and woven metals and other porous media.
We were able to optimize the number of parts in process to fully absorb long capillary flow times, part transport times and extended product heating times.
Stucco can 'bond' or adhere to the housewrap surface altering its surface energy, thereby allowing housewrap pores to become 'wetted' and subsequently establish capillary flow....
Smoking narrows blood vessels, decreasing capillary flow to the area.
Lateral movement is by capillary flow, the flow of cohesion water through capillary pores in the soil.
Content, such as bioheat transfer, thermoregulation, freezing, global warming, capillary flow and dispersion are some of the topics not typically included iii the undergraduate-level teaching of transport phenomena.
This process thins the film around the particles and alters the interface between the particles and the polymer matrix, creating portals that allow the capillary flow of gases between the particle and the film and thus increasing the overall permeability of the film.

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