Georgiev, Dian J. and Roberts, A. J. and Strunin, Dmitry V. (2007) Nonlinear dynamics on centre manifolds describing turbulent floods: k\omega model. Discrete and Continuous Dynamical Systems Series A, 2007 (Specia). pp. 419428. ISSN 10780947

PDF (Author version)
Georgiev_Roberts_Strunin_2007_Authorversion.pdf Download (146Kb) 
Abstract
In shallow turbulent flows such as floods and tsunami vertical mixing tends to smooth out the flow characteristics in crosssectional direction. The evolution of the average crossflow characteristics presents considerable
interest. We model such flows using the komega model of turbulence in the framework of the centre manifold theory. We tested the approach on an artificial diffusion problem for which an exact analytical solution is derived. Then we
apply the method to model the turbulent flows and deduced the evolution equations for the average velocity, turbulent energy and its rate of dissipation.
Statistics for this ePrint Item 
Item Type:  Article (Commonwealth Reporting Category C) 

Refereed:  Yes 
Publisher:  American Institute of Mathematical Sciences 
Item Status:  Live Archive 
Additional Information (displayed to public):  This is the Authors' version of the paper. Note that paper is also available from the publisher website above, and the pagination on that version of the paper should be used. Also available in print as: Dynamical Systems and Differential Equations. Proceedings of the 6th AIMS International Conference ( Poitiers, France), DCDS Supplement 2007 Edited by Boris Belinskiy, Kunquan Lan, Xin Lu, Alain Miranville and R. Shivaji. ISBN13: 9781601330109. 
Depositing User:  Dr Dian Georgiev 
Faculty / Department / School:  Historic  Faculty of Sciences  Department of Maths and Computing 
Date Deposited:  12 Dec 2007 08:24 
Last Modified:  02 Jul 2013 22:55 
Uncontrolled Keywords:  dynamical systems, centre manifold, komega turbulent model 
Fields of Research (FoR):  02 Physical Sciences > 0203 Classical Physics > 020303 Fluid Physics 01 Mathematical Sciences > 0101 Pure Mathematics > 010109 Ordinary Differential Equations, Difference Equations and Dynamical Systems 
URI:  http://eprints.usq.edu.au/id/eprint/3644 
Actions (login required)
Archive Repository Staff Only 