boundary-layer equation
71Dimensionless 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… …
72Magnus effect — The Magnus effect, demonstrated on a ball. v represents the wind velocity, the arrow F the resulting force towards the side of lower pressure. The Magnus effect is the phenomenon whereby a spinning object flying in a fluid creates a whirlpool of… …
73Shear stress — SI symbol: τ SI unit: pascal Derivations from other quantities: τ = F / A …
74Turbulence modeling — is the area of physical modeling where a simpler mathematical model than the full time dependent Navier Stokes Equations is used to predict the effects of turbulence.There are various mathematical models used in flow modelling to understand… …
75Log wind profile — The Log wind profile is a semi empirical relationship used to describe the vertical distribution of horizontal wind speeds above the ground within the atmospheric surface layer. The relationship is well described in the planetary boundary layer… …
76Aerodynamic drag — Note This article is currently under renovation, and may, at times, appear disjoint. Please see the [http://en.wikipedia.org/wiki/Talk:Aerodynamic drag Discussion Page] . Introduction Aerodynamic drag refers to the retarding force on moving… …
77Microburst — Illustration of a microburst. Note the downward motion of the air until it hits ground level. It then spreads outward in all directions. The wind regime in a microburst is opposite to that of a tornado …
78Singular perturbation — In mathematics, more precisely in perturbation theory, a singular perturbation problem is a problem containing a small parameter that cannot be approximated by setting the parameter value to zero. This is in contrast to regular perturbation… …
79Theodore von Kármán — Infobox Scientist name = box width = image width =150px caption = Von Karman at the Caltech JPL birth date = birth date|1881|05|11 birth place = death date = death date and age|1963|05|06|1881|05|11 death place = residence = citizenship =… …
80Airfoil — An airfoil (in American English) or aerofoil (in British English) is the shape of a wing or blade (of a propeller, rotor or turbine) or sail as seen in cross section. An airfoil shaped body moved through a fluid produces a force perpendicular to… …
