boundary layer thickness
51Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… …
52Fluid dynamics — Continuum mechanics …
53Fog — For other uses, see Fog (disambiguation). Part of the Nature series on Weather   Calendar seasons Spring  …
54Stall (flight) — For other uses, see stall. In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is… …
55Moon — This article is about Earth s Moon. For moons in general, see Natural satellite. For other uses, see Moon (disambiguation) …
56Chemical beam epitaxy — (CBE) forms an important class of deposition techniques for semiconductor layer systems, especially III V semiconductor systems. This form of epitaxial growth is performed in an ultrahigh vacuum system. The reactants are in the form of molecular… …
57Natural environment — This article is about the environment. For other uses, see Environment (disambiguation). See also: Nature Land management policies have been developed to preserve the natural characteristics of Hopetoun Falls, Australia while allowing ample… …
58Prandtl number — The Prandtl number mathrm{Pr} is a dimensionless number approximating the ratio of momentum diffusivity (kinematic viscosity) and thermal diffusivity. It is named after the German physicist Ludwig Prandtl.It is defined as::mathrm{Pr} = frac{… …
59Oberon (moon) — For other uses, see Oberon (disambiguation). Oberon The best Voyager 2 image of Oberon, obtained on January 24, 1986 Discovery D …
60Ignimbrite — is a volcanic pyroclastic rock, often of dacitic or rhyolitic composition. Ignimbrite is the deposit of a pumice rich pyroclastic density current, or pyroclastic flow , a hot suspension of particles and gases that flows rapidly from a volcano,… …
