Original title: Motion of multiple cylinders in potential flow of ideal fluid
Authors: Kharlamov, Alexander A. ; Filip, Petr
Document type: Papers
Conference/Event: Colloquium FLUID DYNAMICS 2011, Praha (CZ), 2011-10-19 / 2011-10-21
Year: 2011
Language: eng
Abstract: The flow field past multiple arbitrarily moving cylinders is calculated using a generalisation of the conventional images method. The flow is presented by a flow from an infinite set of dipoles. For calculation purposes the infinite series must be, however, truncated. The kinetic energy of fluid is presented as a sum over all modelling dipoles. A rather good convergence of the method is observed. However, if the distances between any cylinders tend to zero, the method fails in zones close to the contact point. Nevertheless, even for the case of touching cylinders the series for the kinetic energy remain convergent. In case of just two cylinders the method projects on the classical method of images. Method is validated by several comparisons with solutions known from the literature.
Keywords: circular cylinders; generalised images method; ideal fluid; potential flow
Project no.: CEZ:AV0Z20600510 (CEP)
Host item entry: Colloquium FLUID DYNAMICS 2011, ISBN 978-80-87012-36-9

Institution: Institute of Hydrodynamics AS ČR (web)
Document availability information: Fulltext is available on demand via the digital repository of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0201074

Permalink: http://www.nusl.cz/ntk/nusl-71469


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Research > Institutes ASCR > Institute of Hydrodynamics
Conference materials > Papers