Modelling ideal turbulent vortex breakdown
Kelson, Neil A. & McElwain, Sean (1996) Modelling ideal turbulent vortex breakdown. In Yuen, Wai Yee Daniel, Broadbridge, Philip, & Steiner, Joseph M. (Eds.) Proceedings of the Second Biennial Australian Engineering Mathematics Conference: 1996; Engineering Mathematics; Research, Education and Industry Linkage, Sydney, NSW.
In this computational study we investigate the role of turbulence in ideal axisymmetric vortex breakdown. A pipe geometry with a slight constriction near the inlet is used to stabilise the location of the breakdown within the computed domain. Eddy-viscosity and differential Reynolds stress models are used to model the turbulence. Changes in upstream turbulence levels, flow Reynolds and Swirl numbers are considered. The different computed solutions are monitored for indications of different breakdown flow configurations. Trends in vortex breakdown due to turbulent flow conditions are identified and discussed.
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|Item Type:||Conference Paper|
|Keywords:||vortex breakdown, turbulence|
|Subjects:||Australian and New Zealand Standard Research Classification > MATHEMATICAL SCIENCES (010000) > NUMERICAL AND COMPUTATIONAL MATHEMATICS (010300) > Numerical Solution of Differential and Integral Equations (010302)|
|Divisions:||Current > QUT Faculties and Divisions > Division of Technology, Information and Learning Support|
Past > QUT Faculties & Divisions > Faculty of Science and Technology
|Copyright Owner:||Copyright 1996 please contact the authors|
|Deposited On:||05 Oct 2009 10:47|
|Last Modified:||05 Oct 2009 10:47|
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