laminar boundary layer

laminar boundary layer

[′lam·ə·nər ′bau̇n·drē ‚lā·ər]
(fluid mechanics)
A thin layer over the surface of a body immersed in a fluid, in which the fluid velocity relative to the surface increases rapidly with distance from the surface and the flow is laminar.

laminar boundary layer

laminar boundary layerclick for a larger image
A series of layers of airflow over a body with each successive layer having a higher velocity than the adjacent one and with the bottom-most layer having a zero velocity. The opposite of laminar airflow is turbulent airflow.
References in periodicals archive ?
As it can be seen, the resulting non-dimensional temperature and vertical velocity profiles exhibit clearly a laminar boundary layer behavior, again confirming the proposed numerical approach.
The curves show that the local heat transfer coefficient decreases with increasing angle in the range of [phi] = 80[degrees] ~ 85[degrees], because the laminar boundary layer is thickened continuously; the heat intensity is also weakened.
Further, the flow in the laminar boundary layer is two-dimensional [14],
Even for the case of a laminar flow, the exact solution of equations describing the laminar boundary layer is very difficult to calculate and only few simple problems can straightforward be analysed [1,3].
Configuration B pushes like a hand that is significantly wider than four fingers stuck together because the spacing is approximately the same as the thickness of the laminar boundary layer that surrounds each finger.
Laminar boundary layer in oscillating flow along an infinite flat plate with variable suction.
The topics include thermal conductivity, unsteady heat conduction, similarity solutions for laminar boundary layer flow, forced convective heat transfer for bodies in external flow, and condensation.
Fluid viscosity and thermal conductivity (hence thermal diffusivity) play an important role in the flow characteristic of laminar boundary layer problems.
The method of adding serrated vanes on the surface of vane (CHENG, 1989) can achieve the effect of noise reduction by transforming laminar boundary layer into turbulent boundary layer.
The laminar boundary layer allows very low heat exchanges between the model surface and the surrounding freestream flow.
The effects of magnetic field and thermophoresis effect on steady laminar boundary layer flow of an incompressible electrically conducting micropolar fluid over a permeable vertical moving plate are studied.