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Introduction Forcings Observations Atmospheric Turbulence Ocean Turbulence Dimensional Analysis

Introduction Forcings Observations Atmospheric Turbulence Ocean Turbulence Dimensional Analysis Basic Equations Length Scales. Convective flows, Rayleigh-Nuselt numbers. Important parameters to consider in unstableflows Rayleigh Taylor Instab. The Atwood Number, A

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Introduction Forcings Observations Atmospheric Turbulence Ocean Turbulence Dimensional Analysis

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  1. Introduction Forcings Observations Atmospheric Turbulence Ocean Turbulence Dimensional Analysis Basic Equations Length Scales

  2. Convective flows, Rayleigh-Nuselt numbers

  3. Important parameters to consider in unstableflows Rayleigh Taylor Instab. • The Atwood Number, A • The width of the mixing zone, d • The non-dimensional time, t-t0 • The Fractal Dimension

  4. Boussinesq Aproximation consiss On neglegting inertial accelerations on density fluctuations, but allowing the Gravitational accelerations.

  5. Baroclinic Vorticity

  6. Shocks in AIR of He and Kr Balls, Which is Which ?

  7. krypton M=1, 2 x4 x3 x1 x2

  8. x4 x3 x2 x1 hélium M=1,05

  9. d) c) b) a)

  10. max Velocity Magnitude Volume of Fluid Vorticity Magnitude 0÷0,33 0÷1 -106÷84 min

  11. Basic Turbulence

  12. Basic Turbulence

  13. Basic Turbulence

  14. Basic Turbulence

  15. Stratification causes strong vertical anisotropy! • Redondo(1990)

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