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Flow features for two cylinders arranged in tandem configuration near a free surface
Rahul Subburaj,
Published in Academic Press
2019
Volume: 91
   
Abstract
Flow past two tandem cylinders near a free surface is studied numerically at a Reynolds number of 180 using level set method and immersed boundary method. Values of Froude number are varied as 0.3,0.4,0.6; inter-cylinder distance varied as 2,3,4,5,6,10; submergence depth varied as 0.3,0.55. Flow characteristics and mean forces are noted with the variation of these parameters. Upon examination, it is observed that cylinder-to-cylinder proximity along with increased Froude number reduces the instabilities in flow. It is also found that mean drag of the rear cylinder reduces or increases at certain inter-cylinder distance depending on the submergence depth. At the same time, mean lift is observed to be sensitive to variation in submergence depth for flows with low Froude number. © 2019
About the journal
JournalJournal of Fluids and Structures
PublisherAcademic Press
ISSN08899746
Open AccessNo
Concepts (13)
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    Froude number
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    Numerical methods
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    Reynolds number
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    Turbulent flow
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    Flow charac-teristics
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    Flow features
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    Free surfaces
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    Immersed boundary methods
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    Level set method
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    Tandem configuration
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    TWO CYLINDERS
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    TWO TANDEM CYLINDERS
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    Cylinders (shapes)