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 ?
where the Darcy-Weisbach friction factor f is 64/Re for Poiseuille flow (see (6.
Couette and Poiseuille flows of an Oldroyd 6-constant fluid with magnetic field in a channel was investigated by Hayat et al.
4]) is the dissipation in the Poiseuille flow through the tube with an impermeable wall, [epsilon] [THETA]/Q is the ratio between the outflow through the wall and the inflow at the tube inlet.
This model takes into account transition flow within the clearance and generally gives an effective area slightly smaller than the Poiseuille flow model.
46] From clearance volume to muffler 1 (1) Flow is designated as (1) isentropic flow of compressible ideal gas, (2) mixed plane Couette flow and Poiseuille flow, or (3) laminar viscous flow into the chamber and isentropic flow out of the chamber.
Subsequently, we performed direct numerical simulations of viscosity-stratified two-layer plane Poiseuille flow employing a front-tracking/finite difference method (Cao et al.
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
Yih (3) first studied the stability of Poiseuille flows of two Newtonian fluids submitted to very long waves.
Table 3 shows the adiabatic-heat-generation calculation in Poiseuille flow, as described above, for the five materials under analysis.
1], in the case where the flow is considered Poiseuille flow.
Time-dependent temperature change with no flow condition agreed with the analytical solution of non-steady heat transfer conduction (10), and a fully developed flow field at isothermal conditions showed an exact Poiseuille flow (11).