Transient development of perturbations in a stratified turbulent shear flow

Yáñez Vico, Carlos (2008). Transient development of perturbations in a stratified turbulent shear flow. Proyecto Fin de Carrera / Trabajo Fin de Grado, E.T.S.I. Aeronáuticos (UPM).

Description

Title: Transient development of perturbations in a stratified turbulent shear flow
Author/s:
  • Yáñez Vico, Carlos
Contributor/s:
  • García-Villalba, Manuel
Item Type: Final Project
Date: March 2008
Subjects:
Freetext Keywords: fluid mechanics, linear methods, turbulence
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Otro
Creative Commons Licenses: None

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Abstract

In this study the transient development of perturbations in a stratified turbulent shear flow is investigated. The modes with the largest transient growth could be related to the large structures observed in real flows. This is achieved through the analysis of the temporal stability of the linearized Navier-Stokes equations using the Boussinesq approximation (Kundu & Cohen, 2002). In order to be able to consider turbulent base flows, eddy viscosity and eddy diffusivity approximations are employed. The obtained results are compared to DNS data.

More information

Item ID: 1446
DC Identifier: http://oa.upm.es/1446/
OAI Identifier: oai:oa.upm.es:1446
Deposited by: CARLOS YAÑEZ VICO
Deposited on: 12 Mar 2009
Last Modified: 20 Apr 2016 06:50
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