bulk flow

[/bʌlk floʊ/]
nounpl: bulk flows
fluxo em massa
1. The movement of fluid through a medium driven by a pressure gradient, where the entire fluid moves together as a unit rather than through diffusion or osmosis
Bulk flow is responsible for the movement of blood through arteries and veins.
O fluxo em massa é responsável pelo movimento do sangue através das artérias e veias.
2. In physiology, the convective transport of solutes and solvents across a membrane or through tissue spaces
Bulk flow of fluid from the capillaries into the tissue spaces occurs at the arterial end of the capillary bed.
O fluxo em massa de fluido dos capilares para os espaços teciduais ocorre na extremidade arterial do leito capilar.
3. In fluid mechanics, the overall motion of a fluid mass in response to pressure differences
The bulk flow rate depends on the viscosity of the fluid and the pressure gradient.
A taxa de fluxo em massa depende da viscosidade do fluido e do gradiente de pressão.
This is a technical term primarily used in medical, physiological, and engineering contexts in both Brazil and the United States. It is fundamental to understanding cardiovascular physiology and kidney function in medical education curricula.
Synonyms / Sinônimos
mass flowconvective flowpressure flowgross flow
Antonyms / Antônimos
diffusionosmosismolecular transport

Regional Variations

General Brazilian
fluxo em massa
Standard term used in physiology and fluid mechanics texts
São Paulo
fluxo em massa / fluxo convectivo
Both terms are used in academic and medical contexts
Portugal
fluxo em massa / escoamento em massa
European Portuguese may prefer 'escoamento' in technical contexts
USA/Medical
N/A
Commonly used in physiology, nephrology, and cardiovascular medicine

Related Words

pressure gradientfluid mechanicscapillaryviscosityconvectionStarling forcesfiltration

Related Idioms & Phrases

bulk flow of information
bulk flow dynamics
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