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O que (quem) é K–omega turbulence model - definição
K–omega turbulence model
In computational fluid dynamics, the k–omega (k–ω) turbulence model is a common two-equation turbulence model, that is used as an approximation for the Reynolds-averaged Navier–Stokes equations (RANS equations). The model attempts to predict turbulence by two partial differential equations for two variables, k and ω, with the first variable being the turbulence kinetic energy (k) while the second (ω) is the specific rate of dissipation (of the turbulence kinetic energy k into internal thermal energy).
K-epsilon turbulence model
K-epsilon (k-ε) turbulence model is the most common model used in computational fluid dynamics (CFD) to simulate mean flow characteristics for turbulent flow conditions. It is a two equation model that gives a general description of turbulence by means of two transport equations (partial differential equations, PDEs).
turbulent
![tip vortex]] from an [[airplane]] wing passing through coloured smoke](https://commons.wikimedia.org/wiki/Special:FilePath/Airplane vortex edit.jpg?width=200 "tip vortex]] from an [[airplane]] wing passing through coloured smoke")
![laser-induced fluorescence]]. The jet exhibits a wide range of length scales, an important characteristic of turbulent flows.](https://commons.wikimedia.org/wiki/Special:FilePath/False color image of the far field of a submerged turbulent jet.jpg?width=200 "laser-induced fluorescence]]. The jet exhibits a wide range of length scales, an important characteristic of turbulent flows.")
![Laminar]] and turbulent water flow over the hull of a submarine. As the relative velocity of the water increases turbulence occurs.](https://commons.wikimedia.org/wiki/Special:FilePath/Los Angeles attack sub 2.jpg?width=200 "Laminar]] and turbulent water flow over the hull of a submarine. As the relative velocity of the water increases turbulence occurs.")
MOTION CHARACTERIZED BY CHAOTIC CHANGES IN PRESSURE AND FLOW VELOCITY
Turbulent flow; Turbulent; Fluid turbulence; Atmospheric turbulence; Turbulent fluids; Turbulent fluid; Turbulent Flow; Turbulent force; Turbulent forces; Turbulance; Kolmogorov's theory of 1941; Turbulent diffusivity
a.
1.
Disturbed, agitated, tumultuous, wild.
2.
Tumultuous, disorderly, blustering, obstreperous, boisterous, uproarious, blatant, brawling, vociferous.
3.
Riotous, seditious, mutinous, insubordinate, refractory, insurgent, rebellious, revolutionary, factious, disorderly, wild, violent.
4.
Producing commotion.
