flow around a sphere

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• Stokes' law — In 1851, George Gabriel Stokes derived an expression, now known as Stokes law, for the frictional force also called drag force exerted on spherical objects with very small Reynolds numbers (e.g., very small particles) in a continuous viscous… …   Wikipedia

• D'Alembert's paradox — In fluid dynamics, d Alembert s paradox (or the hydrodynamic paradox) is a contradiction reached in 1752 by French mathematician Jean le Rond d Alembert.[1] D Alembert proved that – for incompressible and inviscid potential flow – the drag force… …   Wikipedia

• Terminal velocity — A free falling object achieves its terminal velocity when the downward force of gravity ( Fg )equals the upward force of drag ( Fd ). This causes the net force on the object to be zero, resulting in an acceleration of zero. Mathematically an… …   Wikipedia

• Oseen equations — In fluid dynamics, the Oseen equations (or Oseen flow) describe the flow of a viscous and incompressible fluid at small Reynolds numbers, as formulated by Carl Wilhelm Oseen in 1910. Oseen flow is an improved description of these flows, as… …   Wikipedia

• Coriolis effect — For the psychophysical perception effect, see Coriolis effect (perception). Classical mechanics Newton s Second Law …   Wikipedia

• Solution of the Poincaré conjecture — This entry describes the solution of the Poincaré conjecture at a level intended for the general public. The proof described is that of Grigori Perelman using the Ricci flow developed by Richard Hamilton. Links to other expositions for general… …   Wikipedia

• Drag coefficient — In fluid dynamics, the drag coefficient (commonly denoted as: cd, cx or cw) is a dimensionless quantity that is used to quantify the drag or resistance of an object in a fluid environment such as air or water. It is used in the drag equation,… …   Wikipedia

• Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% …   Wikipedia

• Viscometer — A viscometer (also called viscosimeter) is an instrument used to measure the viscosity of a fluid. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. Viscometers only measure under one flow… …   Wikipedia

• Metamaterial cloaking — Electromagnetism Electricity · …   Wikipedia

• List of Bionicle characters — Matau redirects here. For the Romanian village of Măţău, see Mioarele. Bionicle characters consist of the various species and races that exist in the fictional universe of Lego Bionicle. This list of groups covers every race, species, and group… …   Wikipedia