- Kolmogorov dissipation scale
- 科莫消散尺度
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Atmospheric Sciences (English-Chinese) dictionary. 2014.
Kolmogorov microscales — are the smallest scales in turbulent flow. They are defined bywhere epsilon is the average rate of energy dissipation per unit mass, and u is the kinematic viscosity of the fluid.In his 1941 theory, A. N. Kolmogorov introduced the idea that the… … Wikipedia
Turbulence — In fluid dynamics, turbulence or turbulent flow is a fluid regime characterized by chaotic, stochastic property changes. This includes low momentum diffusion, high momentum convection, and rapid variation of pressure and velocity in space and… … Wikipedia
Astronomical seeing — Schematic diagram illustrating how optical wavefronts from a distant star may be perturbed by a layer of turbulent mixing in the atmosphere. The vertical scale of the wavefronts plotted is highly exaggerated. Astronomical seeing refers to the… … Wikipedia
Direct numerical simulation — A direct numerical simulation (DNS)[1] is a simulation in computational fluid dynamics in which the Navier Stokes equations are numerically solved without any turbulence model. This means that the whole range of spatial and temporal scales of the … Wikipedia
Entropy — This article is about entropy in thermodynamics. For entropy in information theory, see Entropy (information theory). For a comparison of entropy in information theory with entropy in thermodynamics, see Entropy in thermodynamics and information… … Wikipedia
celestial mechanics — the branch of astronomy that deals with the application of the laws of dynamics and Newton s law of gravitation to the motions of heavenly bodies. [1815 25] * * * Branch of astronomy that deals with the mathematical theory of the motions of… … Universalium