PRIMA

PARTICLE REPRESENTATION IN MODELING APPLICATIONS

Coordinatore	NATIONAL OBSERVATORY OF ATHENS    more  Organization address address: Lofos Nymfon city: ATHINA postcode: 11810 contact info Titolo: Dr. Nome: Sophia Cognome: Chryssafi Email: send email Telefono: 0030 210 3490147 Fax: 0030 210 3490140
Nazionalità Coordinatore	Greece [EL]
Totale costo	45˙000 €
EC contributo	45˙000 €
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-ERG-2008
Funding Scheme	MC-ERG
Anno di inizio	2008
Periodo (anno-mese-giorno)	2008-08-31   -   2011-08-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	NATIONAL OBSERVATORY OF ATHENS  Organization address address: Lofos Nymfon city: ATHINA postcode: 11810 contact info Titolo: Dr. Nome: Sophia Cognome: Chryssafi Email: send email Telefono: 0030 210 3490147 Fax: 0030 210 3490140	EL (ATHINA)	coordinator	45˙000.00

Mappa

 Word cloud

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 Obiettivo del progetto (Objective)

'In simple flows with mild mean deformation rates the turbulence has time to come to equilibrium with mean flow and the Reynolds stresses are determined by the strain rate, in the basis of eddy-viscosity representation. On the other hand, when the mean deformation is very rapid, the turbulent structure takes some time to respond and the Reynolds stresses are determined by the rapid distortion theory. A complete turbulence model should exhibit this visco-elastic character of turbulence, matching the two limiting behaviors and providing a reasonable blend in between. Our aim is the development of a complete one-point model with the proper visco-elastic character for use in environmental and engineering applications. The core of the model will be the particle representation model (PRM). PRM is a modern structure-based model, making use of new approaches on the description of the morphology of the turbulent structures, which offers an alternative method for computing the linear RDT one-point statistics efficiently, and without excessive computation. The scope of this proposal is the continuation of the valuable past work for the extension of the PRM approach to weak deformation rates, including more types of deformations in homogeneous and inhomogeneous flows. The resulted model is expected to improve Reynolds stress modeling for wide applications, contributing to a better understanding in atmospheric phenomena (like the passage of the flow above an obstacle), in astrophysics (star formation), and in engineering design.'