Dynamic performance of Flettner rotors with and without Thom discs

Timothy Craft; Hector Iacovides; Brian Launder

Dynamic performance of Flettner rotors with and without Thom discs

Timothy Craft, Hector Iacovides, Brian Launder

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The paper presents U-RANS simulations for 3-D flow 0past a rotating cylinder for a range of Reynolds numbers and rotation rates relevant to the performance of ships propelled by Flettner rotors in place of sails. Comparisons are drawn with existing LES data of similar flows at much lower Reynolds numbers. Ttheresafter the performance is examined for values of Re within the probable range of actual rotor operating conditions including the effects of adding discs mounted along the length of the cylinder which Thom (1934) had suggested led to improved performance at high spin rates.

Original language	English
Title of host publication	Proceedings TSFP7
Editors	Stavros Tavoularis, John Eaton
Place of Publication	Ottawa, Canada
Publisher	University of Ottawa
Pages	6C13-6C18
Publication status	Published - Jul 2011
Event	7th International; Symposium on Turbulence & Shear Flow Phenomena - Ottawa Duration: 28 Jan 2012 → 31 Jan 2012

Conference

Conference	7th International; Symposium on Turbulence & Shear Flow Phenomena
City	Ottawa
Period	28/01/12 → 31/01/12

Keywords

Flettner rotor, Thom disc, CFD, U-RANS modelling

Cite this

@inproceedings{43a3a0766c3243448b64efbe216d8634,

title = "Dynamic performance of Flettner rotors with and without Thom discs",

abstract = "The paper presents U-RANS simulations for 3-D flow 0past a rotating cylinder for a range of Reynolds numbers and rotation rates relevant to the performance of ships propelled by Flettner rotors in place of sails. Comparisons are drawn with existing LES data of similar flows at much lower Reynolds numbers. Ttheresafter the performance is examined for values of Re within the probable range of actual rotor operating conditions including the effects of adding discs mounted along the length of the cylinder which Thom (1934) had suggested led to improved performance at high spin rates.",

keywords = "Flettner rotor, Thom disc, CFD, U-RANS modelling",

author = "Timothy Craft and Hector Iacovides and Brian Launder",

note = "This was a preliminary demonstration of modelling Flettner rotors. See later paper in Int J Heat & Fluid Flow for final results. ; 7th International; Symposium on Turbulence & Shear Flow Phenomena ; Conference date: 28-01-2012 Through 31-01-2012",

year = "2011",

month = jul,

language = "English",

pages = "6C13--6C18",

editor = "Stavros Tavoularis and John Eaton",

booktitle = "Proceedings TSFP7",

publisher = "University of Ottawa",

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TY - GEN

T1 - Dynamic performance of Flettner rotors with and without Thom discs

AU - Craft, Timothy

AU - Iacovides, Hector

AU - Launder, Brian

N1 - This was a preliminary demonstration of modelling Flettner rotors. See later paper in Int J Heat & Fluid Flow for final results.

PY - 2011/7

Y1 - 2011/7

N2 - The paper presents U-RANS simulations for 3-D flow 0past a rotating cylinder for a range of Reynolds numbers and rotation rates relevant to the performance of ships propelled by Flettner rotors in place of sails. Comparisons are drawn with existing LES data of similar flows at much lower Reynolds numbers. Ttheresafter the performance is examined for values of Re within the probable range of actual rotor operating conditions including the effects of adding discs mounted along the length of the cylinder which Thom (1934) had suggested led to improved performance at high spin rates.

AB - The paper presents U-RANS simulations for 3-D flow 0past a rotating cylinder for a range of Reynolds numbers and rotation rates relevant to the performance of ships propelled by Flettner rotors in place of sails. Comparisons are drawn with existing LES data of similar flows at much lower Reynolds numbers. Ttheresafter the performance is examined for values of Re within the probable range of actual rotor operating conditions including the effects of adding discs mounted along the length of the cylinder which Thom (1934) had suggested led to improved performance at high spin rates.

KW - Flettner rotor, Thom disc, CFD, U-RANS modelling

M3 - Conference contribution

SP - 6C13-6C18

BT - Proceedings TSFP7

A2 - Tavoularis, Stavros

A2 - Eaton, John

PB - University of Ottawa

CY - Ottawa, Canada

T2 - 7th International; Symposium on Turbulence & Shear Flow Phenomena

Y2 - 28 January 2012 through 31 January 2012

ER -

Dynamic performance of Flettner rotors with and without Thom discs

Abstract

Conference

Keywords

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