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On the decay and amplification of turbulence in Sexl-Womersley type flows

Feldmann, Daniel and Wagner, Claus (2012) On the decay and amplification of turbulence in Sexl-Womersley type flows. 6th European Postgraduate Fluid Dynamics Conference (EPFDC), 10. - 12. Jul. 2012, London, United Kingdom.

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Official URL: http://www.epfdc2012.co.uk

Abstract

Decay and amplification of shear flow turbulence in oscillatory fluid motions is of theoretical interest and practical relevance, since the onset of turbulence can drastically change the transport properties and mixing efficiency. To supplement former theoretical and experimental investigations on the transition to turbulence in Sexl– Womersley (SW) type flows we perform three-dimensional direct numerical simulations (DNS) of oscillatory pipe flows at various Womersley numbers Wo 2 f5; 13; 26; 52g and Reynolds numbers Re 2 f1440; 2880; 5760; 11520g based on the friction velocity u.

Document Type:Conference or Workshop Item (Poster)
Title:On the decay and amplification of turbulence in Sexl-Womersley type flows
Authors:
AuthorsInstitution or Email of Authors
Feldmann, Danieldaniel.feldmann@dlr.de
Wagner, Clausclaus.wagner@dlr.de
Date:10 July 2012
Refereed publication:No
In ISI Web of Science:No
Status:Published
Keywords:Sexl-Womersley flow, turbulence, Direct numerical simulation (DNS)
Event Title:6th European Postgraduate Fluid Dynamics Conference (EPFDC)
Event Location:London, United Kingdom
Event Type:international Conference
Event Dates:10. - 12. Jul. 2012
Organizer:Olga Korolkova, Owen Connick, Curtis Banks, Henry Burridge, Amalia de Luca, Jovan Nedic, David Pryce, Florencia Tettamanti, Leon Vanstone, Abeed Visram
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Fluid Systems
Deposited By: Daniel Feldmann
Deposited On:30 Jul 2012 15:17
Last Modified:12 Dec 2013 21:05

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