laminar flow

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Related to Poiseuille flow: plane Poiseuille flow, Couette flow

flow

 [flo]
1. the movement of a liquid or gas.
2. the amount of a fluid that passes through an organ or part in a specified time; called also flow rate.
forced expiratory flow (FEF) the rate of airflow recorded in measurements of forced vital capacity, usually calculated as an average flow over a given portion of the expiratory curve; the portion between 25 and 75 per cent of forced vital capacity is called the maximal midexpiratory flow. Called also forced expiratory flow rate.
laminar flow smooth, uninterrupted flow as of a gas through a tube.
maximal expiratory flow FEF200–1200; the rate of airflow at forced vital capacity, represented graphically as the slope of the line connecting the points 200 mL and 1200 mL on the forced expiratory volume curve. See also pulmonary function tests. Called also maximal expiratory flow rate.
maximal midexpiratory flow FEF25–75; the maximum rate of airflow measured between expired volumes of 25 and 75 per cent of the vital capacity during a forced expiration; represented graphically as the slope of the line connecting the points on the forced expiratory volume curve at 25 and 75 per cent of the forced vital capacity. See also pulmonary function tests. Called also maximal midexpiratory flow rate.
renal plasma flow (RPF) the amount of plasma that perfuses the kidneys per unit time, approximately 90 per cent of the total constitutes the effective renal plasma flow, the portion that perfuses functional renal tissue such as the glomeruli.
turbulent flow flow that is agitated or haphazard.

lam·i·nar flow

the relative motion of elements of a fluid along smooth parallel paths, which occurs at lower values of a Reynolds number.

laminar flow

lam·i·nar flow

(lam'i-năr flō)
The relative motion of elements of a fluid along smooth parallel paths, which occurs at lower values of a Reynolds number.

laminar

made up of laminae or layers; pertaining to a lamina.

laminar bone
see laminar bone.
laminar cortical necrosis
necrosis of the superficial layers of the cerebral cortex. See also polioencephalomalacia.
laminar dermis
the sensitive laminae in the horse's hoof; interdigitate with the insensitive laminae on the inner aspect of the horn of the hoof.
laminar flow
the flow of liquid through a tube so that the fluid passes along in concentric layers which slide over each other.
References in periodicals archive ?
In the case of Poiseuille flow for [increment of x], from (4.
2004, Couette and Poiseuille flows of an Oldroyd 6-constant fluid with magnetic field, J.
3] that had been obtained for the Poiseuille flow in the tube with the impermeable wall.
This model takes into account transition flow within the clearance and generally gives an effective area slightly smaller than the Poiseuille flow model.
In obtaining plane Couette flows using a third grade fluid, three different problems depending on the relative motion of the sliding plates are considered: (i) Couette flow; (ii) Poiseuille flow, and (iii) generalized plane Couette flow.
Subsequently, we performed direct numerical simulations of viscosity-stratified two-layer plane Poiseuille flow employing a front-tracking/finite difference method (Cao et al.
For a no-slippage Poiseuille flow in the circular tube, the following equations are satisfied [51],
In the load section, if it is a rectangular channel without side boundary effects, a pure pressure driven flow results with a Poiseuille flow profile of
In this work, diffusion of water vapor across the membrane is simulated by combination of the Knudsen and Poiseuille flow.
The self-similar velocity profile of the Poiseuille flow of power law fluid with exponent n in a channel of width 2B shown in Fig.
These boundary and initial conditions allow us to study a one-dimensional configuration close to those encountered in forming processes: the Poiseuille flow of a polymer melt between cold walls.
During three subsequent postdoctoral years in Mark's Institute, Simha validated Einstein's equation for parabolic Poiseuille flow and made "excursions" (with Fritz Eirich) into kinetic theory, as well as viscosity, surface tension and heats of vaporization of chain molecular fluids.