An analysis of a two cylinder-fluid interaction at critical gap spacing by a cell boundary element method
An analysis of a two cylinder-fluid interaction at critical gap spacing by a cell boundary element method
Incompressible viscous, uniform flow past two parallel cylinders of equal diameter at a critical gap spacing g? = 0.90 to 1.10 is investigated using the viscous cell boundary element method. In this critical flow zone an irregular interchange of in-phase and anti-phase wake flows is observed and the switching mechanism between the states is investigated. Numerical studies undertaken at space increments of 0.05, including the central case g? = 1.0, detail the flow characteristics in time and space domains. Probability and power spectral analyses are presented to illustrate the statistical characteristics of the drag and lift flow parameters and vortex shedding patterns assessed through examination of their frequencies.
vortex shedding, two cylinders, critical spacing, viscous cell boundary element method
151-160
Ravi, A.B.
90b710fe-e37f-4617-9f1b-987071c0ffba
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
21 December 2008
Ravi, A.B.
90b710fe-e37f-4617-9f1b-987071c0ffba
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Ravi, A.B., Tan, M. and Price, W.G.
(2008)
An analysis of a two cylinder-fluid interaction at critical gap spacing by a cell boundary element method.
European Physical Journal - Special Topics, 165 (1), .
(doi:10.1140/epjst/e2008-00858-8).
Abstract
Incompressible viscous, uniform flow past two parallel cylinders of equal diameter at a critical gap spacing g? = 0.90 to 1.10 is investigated using the viscous cell boundary element method. In this critical flow zone an irregular interchange of in-phase and anti-phase wake flows is observed and the switching mechanism between the states is investigated. Numerical studies undertaken at space increments of 0.05, including the central case g? = 1.0, detail the flow characteristics in time and space domains. Probability and power spectral analyses are presented to illustrate the statistical characteristics of the drag and lift flow parameters and vortex shedding patterns assessed through examination of their frequencies.
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Published date: 21 December 2008
Keywords:
vortex shedding, two cylinders, critical spacing, viscous cell boundary element method
Organisations:
Fluid Structure Interactions Group
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Local EPrints ID: 66059
URI: http://eprints.soton.ac.uk/id/eprint/66059
ISSN: 1951-6355
PURE UUID: 49f1f5b3-45b9-4fc2-9f8f-eb8d88772bcc
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Date deposited: 24 Apr 2009
Last modified: 13 Mar 2024 18:06
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Author:
A.B. Ravi
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