SC8/NP9.3Short course on: Experimental and Field Turbulence in Geophysical and Environmental Flows (co-organized)
|Co-Conveners: Shaun Lovejoy , François Schmitt|
Thu, 21 Apr, 15:30–17:00
This 3 hour short course will cover topics in:
1. Environmental Turbulence (2D versus 3D) effects of body forces: Stratification and Rotation
2. The Turbulent structure of atmospheric fields
3. Bio-turbulence at different scales
4. Physical oceanography
5. Astrophysical Turbulence
6. Intermittency and non-locality in complex Turbulence
7. Laboratory simulations of complex flows
The complete syllabus from last year can be found at:
This 1.5 hour short course will cover topics in: Experimental and Field Turbulence in Geophysical and Environmental, it will include lectures and some flow visualization experiments. The course will be followed by another related course of 3 hours.
Topics similar to previous courses will cover:Environmental Turbulence (2D versus 3D) effects of body forces: Stratification and Rotation; The Turbulent structure of atmospheric fields; Bio-turbulence at different scales; Physical oceanography; Astrophysical Turbulence; Intermittency and non-locality in complex Turbulence; Laboratory simulations of complex flows and the shedule will be as follows:
Thursday, 1530-1700, April 21, 2016, Room -2.61
Experimental and Field Turbulence in Geophysical and Environmental Flows
1530-1600 José Redondo and Luca Sorriso-Valvo:
1) Environmental Turbulence and Intermittency: Effects of body forces: Stratification and Rotation
1.1 Homogeneous Turbulence, Statistical descriptors, Locality, 2D-3D cascades
1.2 Inhomogeneous turbulence, body forces, Buoyancy, Brunt-Vaisala and Coriolis frequencies, Burger number.
1.3 Rossby Deformation Radius and Waves
1.4 Spectral descriptions of Reynolds Stresses
1.5 Vorticity, Transport, Energy, Enstrophy and Helicity
1.6 Lagrangian and Eulerian correlations
1.7 Geophysical Turbulence; Topology and Intermittency
1.8 Dominant Instabilities. Magneto-Hydrodynamics. Solar Wind
1.9 Intermittency, Mixing and Stirring, Propulsive Efficiency
1600-1620 Otman Ben Mahjoub and Jackson Tellez:
2) Structure Functions, ESS and Laboratory Geophysical Experiments
2.1 Extended Self Similarity, Scaling exponents.
2.2 Non-Homogeneous and Non-Local flows, BDF Theory.
2.3 Internal waves and Intermittency in the Atmospheric Boundary Layer.
2.4 Generalized Intermittency, Multifractal Analysis
2.5 Examples of Laboratory Flow Visualizations
2.6 PIV, SFIV methods
1620-1640 Phillipe Fraunie:
3) Physical Oceanography and BioTurbulence
3.1 Observation of Coherent structures in the ocean (Fronts, waves and vortices) by use of satellites, RV cruises, buoys, gliders and HF coastal radars.
3.2 Recent approaches: Quasi Geostropphy and Lagrangain description – Finite time Lyapunov exponents
3.3 Internal waves and vertical mixing.
3.4 Satellite study of the ocean surface
3.5 Plankton and Turbulence
1640-1700 Shaun Lovejoy:
4) The Turbulent Structure of Atmospheric Fields
4.1 The standard 2D-3D model and the anisotropic scaling alternative.
4.2 Horizontal scaling of atmospheric fields: satellite, reanalyses.
4.3 Vertical scaling, drop sondes and the outage problem
4.4 Horizontal-vertical sections: the aircraft isobar problem, lidar, CloudSat.
4.5 Temporal scaling: Lagrangian statistics, the outer weather scale and the transition to macro-weather.
4.6 Eulerian temporal statistics and scaling waves
4.7 Overview: the atmosphere in a nutshell.