title: Computer algebra describes flow of turbulent floods via the  Smagorinski large eddy closure
creator: Roberts, A. J.
subject: 291803 Turbulent Flows
subject: 230113 Dynamical Systems
description: [Abstract]: Consider the turbulent flow of a layer of fluid.  The Smagorinski closure for turbulence, with its linear dependence of eddy viscosity upon the shear-rate, models turbulent dissipation.  A slow manifold model of the dynamics of the fluid layer allows for large changes in layer thickness provided the changes occur over a large enough lateral length scale.  The slow manifold is based on two macroscopic modes by modifying the spectrum: here artificially modify the boundary conditions on the free surface so that, as well as a mode representing conservation of fluid, a lateral shear flow with slip is a neutral critical mode.  Then remove the modification to recover a model for turbulent floods.
publisher: University of Southern Queensland
date: 2008-03-16
type: Report
type: NonPeerReviewed
format: application/pdf
identifier: http://eprints.usq.edu.au/4008/1/Roberts_Report_2008.pdf
identifier: Roberts, A. J. (2008) Computer algebra describes flow of turbulent floods via the Smagorinski large eddy closure. Technical Report. University of Southern Queensland, Toowoomba, Australia. (Unpublished)
relation: http://eprints.usq.edu.au/4008/