Diffusion boundary layer

The diffusion boundary layer is a thin (usually on the scale of micrometers) layer of fluid which is not mixed with the main body of the fluid (or cellular arrangement in the case of organisms), by virtue of its proximity to the fluid's edge. In the case of flora the diffusion boundary layer is often associated with the leaf surface, where stomatal gas exchange occurs. In an estuary this layer is immobile due to friction with the sediment.

This science article is a stub. You can help Wikipedia by expanding it.v · Categories: Science stubs Diffusion Wikimedia Foundation. 2010. Игры ⚽ Поможем написать реферат Robert Henderson (River City) V. Krishnaswamy Iyer Look at other dictionaries: Stokes boundary layer — in a viscous fluid due to the harmonic oscillation of a plane rigid plate. Velocity (blue line) and particle excursion (red dots) as a function of the distance to the wall. In fluid dynamics, the Stokes boundary layer, or oscillatory boundary… …   Wikipedia diffusion limitation — The boundary layer hypothesis; that the proliferation of cells in culture is limited by the rate at which some essential component (almost certainly a growth factor) diffuses from the bulk medium into the layer immediately adjacent to the plasma… …   Dictionary of molecular biology Diffusion transistor — A diffusion transistor is any transistor formed by diffusing dopants into a semiconductor substrate. Diffusion transistors include some types of both bipolar junction transistors and field effect transistors. The diffusion process was developed… …   Wikipedia Ekman layer — In standard boundary layer theory, the effects of viscous diffusion are usually balanced by convective inertia. When a fluid rotates, however, the dominant balance may instead be struck between diffusion effects and the Coriolis force. Under… …   Wikipedia Momentum diffusion — refers to the diffusion, or spread of momentum between particles (atoms or molecules) of matter, usually in the liquid state. In the case of the laminar flow of a liquid past a solid surface, momentum diffuses across the boundary layer which… …   Wikipedia Radiative transfer equation and diffusion theory for photon transport in biological tissue — Photon transport in biological tissue can be equivalently modeled numerically with Monte Carlo simulations or analytically by the radiative transfer equation (RTE). However, the RTE is difficult to solve without introducing approximations. A… …   Wikipedia Grain boundary — A grain boundary is the interface between two grains in a polycrystalline material. Grain boundaries disrupt the motion of dislocations through a material, so reducing crystallite size is a common way to improve strength, as described by the Hall …   Wikipedia Poikilohydry — is a condition in organisms that lack a mechanism to prevent desiccation, such as the lichens and bryophytes. They are typically small enough to reside in the diffusion boundary layer, where the lack of cuticle or stomata does not have a… …   Wikipedia диффузионный пограничный слой — Пограничный слой, в котором градиент концентрации в нормальном направлении значительно превышает градиенты этой величины в касательных направлениях. Примечание В этом слое необходимо учитывать влияние диффузии. [ГОСТ 23281 78] Тематики… …   Справочник технического переводчика Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”