countercurrent

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countercurrent

[′kau̇nt·ər‚kər·ənt]
(science and technology)
A current flowing adjacent to the main current but in the opposite direction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
These two lines were combined in test section where these two fluids in direct contact exchange mass in counter-current flow.
Preparative isolation and purification of alkannin/shikonin derivatives from natural products by high-speed counter-current chromatography.
The counter-current systems are vertical and horizontal but the "horizontal" or inclined washing are more efficient because of the inherent countercurrent nature of water flow within the process.
Since injected liquid preferentially wets the medium it gives rise to counter-current imbibition, that is, spontaneous linear flow of wetting fluid into the medium and a counter flow of the resident liquid from the medium.
In the air cooler-condenser during the counter-current process effective mass exchange between flowing downwards condensed heavy shale oil and moving upwards vapour phase takes place.
A part of wash water overflows with the froth bubbles and the remaining part flows down the froth counter-current to the gas phase and is referred to as bias water.
Somewhat of a counter-current to this concept is the one championed by those who call for random acts of kindness from themselves and their fellow citizens.
Filters are fully enclosed systems based on the reciprocating tray concept, making it possible to carry out multi-step process operations in a single unit, including filtration, co-current or counter-current washing and cake drying.
At low or sub-critical speeds, the T-mixer/reactor functions as a blender with the mixing elements pushing the material according to the counter-current principle in an axial and radial direction, according to the company.
Gas from the landfill first enters a counter-current flow, "mobile-bed" absorber column.
Co-current design avoids dew-point blips that result from counter-current systems.