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Motion of multiple cylinders in potential flow of ideal fluid
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SYSNO ASEP 0365949 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Motion of multiple cylinders in potential flow of ideal fluid Author(s) Kharlamov, Alexander A. (UH-J)
Filip, Petr (UH-J) ORCID, RID, SAISource Title Colloquium FLUID DYNAMICS 2011 : Proceedings. - Praha : Ústav termomechaniky AV ČR v. v. i., 2011 / Jonáš P. ; Uruba V. - ISBN 978-80-87012-36-9 Pages s. 21 Number of pages 4 s. Publication form CD-ROM - CD-ROM Action Colloquium FLUID DYNAMICS 2011 Event date 19.10.2011-21.10.2011 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords generalised images method ; potential flow ; ideal fluid ; circular cylinders Subject RIV BK - Fluid Dynamics CEZ AV0Z20600510 - UH-J (2005-2011) Annotation 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. Workplace Institute of Hydrodynamics Contact Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Year of Publishing 2012
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