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Theoretical Investigations of Rotating Instabilities
Author(s) -
Bowen P. J.,
O'Doherty T.,
LuccaNegro O.
Publication year - 1999
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500070303
Subject(s) - inviscid flow , turbulence , rotational symmetry , mechanics , perturbation (astronomy) , compressibility , flow (mathematics) , classical mechanics , physics , work (physics) , thermodynamics , quantum mechanics
This paper collates recent theoretical work which sets out to model the characteristics of rotating instabilities often generated by industrial swirl generators such as swirl burners and cyclone dust separators. Results generated from three modelling approaches are discussed: a perturbation analysis about an axisymmetric viscous flow; a two‐dimensional variational approach of incompressible inviscid flow; and numerical solutions of the three‐dimensional Navier‐Stokes equations using contemporary turbulence models. Each modelling approach can predict some of the features of the complex flowfield associated with these rotating instabilities.