3DZZI

Three-dimensional structure of stratified turbulence

Coordinatore	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE    more  Organization address address: Rue Michel -Ange 3 city: PARIS postcode: 75794 contact info Titolo: Ms. Nome: Julie Cognome: Zittel Email: send email Telefono: 0033 1 45 07 53 02 Fax: 0033 1 45 07 58 19
Nazionalità Coordinatore	France [FR]
Totale costo	165˙444 €
EC contributo	165˙444 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-IEF-2008
Funding Scheme	MC-IEF
Anno di inizio	2009
Periodo (anno-mese-giorno)	2009-06-01   -   2010-10-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE  Organization address address: Rue Michel -Ange 3 city: PARIS postcode: 75794 contact info Titolo: Ms. Nome: Julie Cognome: Zittel Email: send email Telefono: 0033 1 45 07 53 02 Fax: 0033 1 45 07 58 19	FR (PARIS)	coordinator	165˙444.55

Mappa

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 Obiettivo del progetto (Objective)

'A new flow instability, known as zig-zag instability, has been revealed to be at the origin of the spontaneous formation of decoupled horizontal layers in stably stratified fluids (density decreasing along the vertical). Such layered structure is widely observed in the atmosphere and oceans. It governs the vertical transport of pollutants and chemical components and the dissipation of momentum. A critical problem is, for example, the thermal inversion in urban areas that causes the stagnation of pollutants and small particles in the lower part of the atmosphere. The main goal of this research is to investigate the linear and nonlinear evolution of the zig-zag instability in complex stratified flows as previous work has been restricted to prototype flows. This will improve the fundamental understanding of stratified turbulence, a crucial step towards developing accurate parametrization of stratified turbulence in numerical models of the atmosphere and oceans. The research will be carried out through theoretical and numerical studies and with new designed laboratory experiments and measurement techniques which may result in the development of patents with the collaboration of the European industry. This project provides the opportunity to work on a highly interdisciplinary topic at an internationally renowned institution, the Laboratoire d'Hydrodynamique at Ecole Polytechnique, offering the possibility to translate research results into academic papers and patents, which can be used in both academic and practitioner contexts. Understanding the dynamics of stratified turbulence will be valuable to improve climate models and to support future predictions in forthcoming Intergovernmental Panel of Climate Change reports.'

Introduzione (Teaser)

Researchers have provided solutions to important problems related to turbulent flow in stratified systems such as the oceans and the atmosphere.