1 / 21

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

vincenzo-deegan
Télécharger la présentation

Introduction Forcings Observations Atmospheric Turbulence Ocean Turbulence Dimensional Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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)

More Related