Numerical study of asymmetric keel hydrodynamic performance through advanced CFD

Dimitrios Mylonas; Serkan Turkmen; Mahdi Khorasanchi

Numerical study of asymmetric keel hydrodynamic performance through advanced CFD

Dimitrios Mylonas, Serkan Turkmen, Mahdi Khorasanchi

Naval Architecture, Ocean And Marine Engineering

Research output: Contribution to conference › Paper › peer-review

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Abstract

The hydrodynamics of an asymmetric IACC yacht keel at angle of yaw are presented using simulations performed by advanced computational fluid dynamics using state-of-the-art software. The aim of the paper is to continue working on the improvement of numerical viscous flow predictions for high-performance yachts using Large Eddy Simulation and Detached Eddy Simulation on unstructured grids. Quantitative comparisons of global forces acting on the keel and wake survey are carried out. Qualitative comparisons include flow visualisation, unsteady and separated flow and other features. Star-CCM+ and the trimmed cell method give better forces and wake prediction compared to the unstructured mesh of ANSYS Fluent. Both solvers give good flow visualisation near and far field of the keel.

Original language	English
Number of pages	12
Publication status	Published - Jun 2013
Event	Third International Conference On Innovation In High Performance Sailing Yachts - Cite de la Voile Eric Tabarly, Lorient, France Duration: 26 Jun 2013 → 28 Jun 2013

Conference

Conference	Third International Conference On Innovation In High Performance Sailing Yachts
Country/Territory	France
City	Lorient
Period	26/06/13 → 28/06/13

Keywords

numerical study
asymmetric keel
hydrodynamic performance
advanced CFD

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5-Mylonas_keel_paper_revisedFinal published version, 1.22 MB

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title = "Numerical study of asymmetric keel hydrodynamic performance through advanced CFD",

abstract = "The hydrodynamics of an asymmetric IACC yacht keel at angle of yaw are presented using simulations performed by advanced computational fluid dynamics using state-of-the-art software. The aim of the paper is to continue working on the improvement of numerical viscous flow predictions for high-performance yachts using Large Eddy Simulation and Detached Eddy Simulation on unstructured grids. Quantitative comparisons of global forces acting on the keel and wake survey are carried out. Qualitative comparisons include flow visualisation, unsteady and separated flow and other features. Star-CCM+ and the trimmed cell method give better forces and wake prediction compared to the unstructured mesh of ANSYS Fluent. Both solvers give good flow visualisation near and far field of the keel.",

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author = "Dimitrios Mylonas and Serkan Turkmen and Mahdi Khorasanchi",

year = "2013",

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note = "Third International Conference On Innovation In High Performance Sailing Yachts ; Conference date: 26-06-2013 Through 28-06-2013",

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TY - CONF

T1 - Numerical study of asymmetric keel hydrodynamic performance through advanced CFD

AU - Mylonas, Dimitrios

AU - Turkmen, Serkan

AU - Khorasanchi, Mahdi

PY - 2013/6

Y1 - 2013/6

N2 - The hydrodynamics of an asymmetric IACC yacht keel at angle of yaw are presented using simulations performed by advanced computational fluid dynamics using state-of-the-art software. The aim of the paper is to continue working on the improvement of numerical viscous flow predictions for high-performance yachts using Large Eddy Simulation and Detached Eddy Simulation on unstructured grids. Quantitative comparisons of global forces acting on the keel and wake survey are carried out. Qualitative comparisons include flow visualisation, unsteady and separated flow and other features. Star-CCM+ and the trimmed cell method give better forces and wake prediction compared to the unstructured mesh of ANSYS Fluent. Both solvers give good flow visualisation near and far field of the keel.

AB - The hydrodynamics of an asymmetric IACC yacht keel at angle of yaw are presented using simulations performed by advanced computational fluid dynamics using state-of-the-art software. The aim of the paper is to continue working on the improvement of numerical viscous flow predictions for high-performance yachts using Large Eddy Simulation and Detached Eddy Simulation on unstructured grids. Quantitative comparisons of global forces acting on the keel and wake survey are carried out. Qualitative comparisons include flow visualisation, unsteady and separated flow and other features. Star-CCM+ and the trimmed cell method give better forces and wake prediction compared to the unstructured mesh of ANSYS Fluent. Both solvers give good flow visualisation near and far field of the keel.

KW - numerical study

KW - asymmetric keel

KW - hydrodynamic performance

KW - advanced CFD

UR - http://www.innovsail.com/#page=page-4

M3 - Paper

T2 - Third International Conference On Innovation In High Performance Sailing Yachts

Y2 - 26 June 2013 through 28 June 2013

ER -

Numerical study of asymmetric keel hydrodynamic performance through advanced CFD

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Keywords

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