boundary layer

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boundary layer

n.
The layer of reduced velocity in fluids, such as air and water, that is immediately adjacent to the surface of a solid past which the fluid is flowing.

boundary layer

n
(General Physics) the layer of fluid closest to the surface of a solid past which the fluid flows: it has a lower rate of flow than the bulk of the fluid because of its adhesion to the solid

bound′ary lay`er


n.
the region of a fluid flowing in the immediate vicinity of a body, with the flow reduced by adhesion and viscosity.
[1920–25]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.boundary layer - the layer of slower flow of a fluid past a surface
physical phenomenon - a natural phenomenon involving the physical properties of matter and energy
References in periodicals archive ?
It is important to notice that boundary layer effect occurs more clearly in the vicinity of the hot plate than on the opposite side where instability of the flow starts to occur.
The boundary layer effect is strongest between late afternoon and early morning.
Eutek's leading brands include the HEADCELL[TM], a modular, multiple-tray settleable solids concentrator that removes fine grit with minimal headloss; the TEACUP[TM], an all-hydraulic unit that uses a combination of a free vortex and the boundary layer effect to capture, classify, and remove fine grit, sugar sand, and high-density fixed solids; the SLURRYCUP[TM], a unit that uses a combination of an open free vortex and the boundary layer effect to capture, classify and remove fine grit, sugar sand, snail shells, and high-density fixed solids from grit slurries, and both primary and secondary sludge; and the GRIT SNAIL[TM], a solids clarifier that discharges clean, low-odor solids, with a low percentage of volatile solids.

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