TURBULENCE QUOTES: `Turbulence is the most important unsolved problem of classical physics.' - Richard Feynman - `I am an old man now, and when I die and go to heaven there are two matters on which I hope for enlightenment. One is quantum electrodynamics, and the other is the turbulent motion of fluids. And about the former I am rather optimistic.' - Horace Lamb - `Big whorls have little whorls, which feed on their velocity, And little whorls have lesser whorls, and so on to viscosity.' - Lewis Richardson - `Turbulent fluid motion is an irregular condition of flow in which the various quantities show a random variation with time and space coordinates so that statistically distinct average values can be discerned.' - Hinze - `The necessary connection between the diffusion and the supply of energy to the turbulent motion is a fundamental charactersitic of turbulent flow.' - Townsend - `Turbulence is a three dimensional time dependent motion in which vortex stretching causes velocity fluctuations to spread to all wavelengths between a minimum determined by viscous forces and a maximum determined by the boundary conditions. It is the usual state of fluid motion except at low Reynolds numbers.' - Bradshaw - |

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