Hola,
¿eres nuevo aquí?

Regístrate gratis y conecta tu empresa con financiación pública, partners y proyectos.

Tengo cuenta

Regístrate

Ver video

Wave Attractors

Financiado

Cerrado

Internal and inertial wave focusing and instability in closed fluid domains

Energy transfer from large to small scale is a critical issue in the dynamics of ocean and atmosphere, and also an important fundamental question. Owing to density-stratification and rotation, ocean and atmosphere support internal... ver más

02/06/2016

ENS DE LYON

270K€

Presupuesto del proyecto: 270K€

Líder del proyecto

ECOLE NORMALE SUPERIEURE DE LYON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo FP7 notifico la concesión del proyecto el día 2016-06-02 No tenemos la información de la convocatoria

0% 100%

Información adicional privada

No hay información privada compartida para este proyecto. Habla con el coordinador.

1 Participantes

ENS DE LYON

0.00€ | Lider

Conecta tu I+D

¿Tienes un proyecto y buscas un partner? Gracias a nuestro motor inteligente podemos recomendarte los mejores socios y ponerte en contacto con ellos. Te lo explicamos en este video

Proyectos interesantes

NWFV Nonlinear studies of water flows with vorticity 1M€ Cerrado

CTM2010-16915 PROPAGACION DE OLEAJE DESDE AGUAS PROFUNDAS A SOMERAS, INTER... 15K€ Cerrado

EDYSC Out-of-equilibrium dynamics of spatially confined Hamiltonia... Cerrado

GUnDHam Generating Unstable Dynamics in dispersive Hamiltonian fluid... 1M€ Cerrado

MTM2011-24109 PROBLEMAS MATEMATICOS QUE SURGEN EN FENOMENOS DE PROPAGACION 2K€ Cerrado

CTM2015-66407-P ESTUDIOS LAGRANGIANOS DE FENOMENOS OCEANICOS: PATRONES DE CO... 172K€ Cerrado

Líder del proyecto

ECOLE NORMALE SUPERIEURE DE LYON No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 270K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto Energy transfer from large to small scale is a critical issue in the dynamics of ocean and atmosphere, and also an important fundamental question. Owing to density-stratification and rotation, ocean and atmosphere support internal and inertial waves which are known to propagate in form of oblique beams. Dispersion properties of these waves lead to strong variation of beam width upon reflection at a sloping boundary. In confined fluid domains, successive reflections may lead to formation of a closed trajectory, an internal wave attractor. Thus, the energy input at a global scale can be strongly concentrated on a closed loop of finite width, implying nonlinear instabilities very likely to occur. They arise indeed in form of parametric subharmonic instability which generates secondary waves having smaller scale than the width of the wave beams of the attractor. This two-step mechanism has been revealed experimentally by the applicant of this project during a short visit to the host organization. It was observed also that at large amplitude of input perturbation a patchwork structure of internal wave field is formed which hardly bears a resemblance to a classic pattern of a wave attractor. Observations of patchwork structures in ocean were recently reported in the literature. The scientific goal is to investigate this mechanism with an emphasis on issues important for interpretation of oceanographic data: What is the influence of the scale effects? How does the threshold amplitude needed to destabilize an attractor depend on the Reynolds number? How does the Reynolds number affect the spatial scale of secondary waves? Does the type of instability change (locally?) with amplitude of oscillations? How is formed the patchwork structure of the wave field? What are the energy contents of different components of the wave field? Are the key mechanisms similar in stratified and rotating fluids? We are aiming to answer these questions by launching a broad experimental campaign.

Conecta tu I+D

Entra hoy

¿Olvidé mi contraseña?

Financiación

Empresas

CTIs/Universidades

Proyectos

Investigadores