Evaluation of viscous forces acting on a moving body by Navier-Stokes solver

Emma Patricia Bangun; Tomoaki Utsunomiya

doi:10.1109/OCEANSKOBE.2008.4530945

Evaluation of viscous forces acting on a moving body by Navier-Stokes solver

Emma Patricia Bangun, Tomoaki Utsunomiya

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

3 Citations (Scopus)

Abstract

A numerical method for the solution of the Navier-Stokes equations in the case of a moving body is presented. The fluid is assumed to be incompressible. A cell-based finite volume method for unstructured grids is applied as the numerical method. The method is applied to problems of flow around a floating body. A floating body with or without bilge keels undergoing roll motions with different roll angles are taken as model case. Evaluation of hydrodynamic coefficients due to viscous forces is conducted. The numerical results show that the roll-damping coefficients obtained by using the Navier-Stokes solver are larger than the radiation damping coefficients evaluated by the linear potential theory due to viscous and vortex effect.

Original language	English
Title of host publication	OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08
DOIs	https://doi.org/10.1109/OCEANSKOBE.2008.4530945
Publication status	Published - Sept 16 2008
Externally published	Yes
Event	OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08 - Kobe, Japan Duration: Apr 9 2008 → Apr 11 2008

Publication series

Name	OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08

Other

Other	OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08
Country/Territory	Japan
City	Kobe
Period	4/9/08 → 4/11/08

All Science Journal Classification (ASJC) codes

Computers in Earth Sciences
Ocean Engineering
Acoustics and Ultrasonics

Access to Document

10.1109/OCEANSKOBE.2008.4530945

Cite this

Evaluation of viscous forces acting on a moving body by Navier-Stokes solver. / Bangun, Emma Patricia; Utsunomiya, Tomoaki.
OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08. 2008. 4530945 (OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08).

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

Bangun, EP & Utsunomiya, T 2008, Evaluation of viscous forces acting on a moving body by Navier-Stokes solver. in OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08., 4530945, OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08, OCEANS'08 MTS/IEEE Kobe-Techno-Ocean'08 - Voyage toward the Future, OTO'08, Kobe, Japan, 4/9/08. https://doi.org/10.1109/OCEANSKOBE.2008.4530945

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abstract = "A numerical method for the solution of the Navier-Stokes equations in the case of a moving body is presented. The fluid is assumed to be incompressible. A cell-based finite volume method for unstructured grids is applied as the numerical method. The method is applied to problems of flow around a floating body. A floating body with or without bilge keels undergoing roll motions with different roll angles are taken as model case. Evaluation of hydrodynamic coefficients due to viscous forces is conducted. The numerical results show that the roll-damping coefficients obtained by using the Navier-Stokes solver are larger than the radiation damping coefficients evaluated by the linear potential theory due to viscous and vortex effect.",

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AU - Bangun, Emma Patricia

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N2 - A numerical method for the solution of the Navier-Stokes equations in the case of a moving body is presented. The fluid is assumed to be incompressible. A cell-based finite volume method for unstructured grids is applied as the numerical method. The method is applied to problems of flow around a floating body. A floating body with or without bilge keels undergoing roll motions with different roll angles are taken as model case. Evaluation of hydrodynamic coefficients due to viscous forces is conducted. The numerical results show that the roll-damping coefficients obtained by using the Navier-Stokes solver are larger than the radiation damping coefficients evaluated by the linear potential theory due to viscous and vortex effect.

AB - A numerical method for the solution of the Navier-Stokes equations in the case of a moving body is presented. The fluid is assumed to be incompressible. A cell-based finite volume method for unstructured grids is applied as the numerical method. The method is applied to problems of flow around a floating body. A floating body with or without bilge keels undergoing roll motions with different roll angles are taken as model case. Evaluation of hydrodynamic coefficients due to viscous forces is conducted. The numerical results show that the roll-damping coefficients obtained by using the Navier-Stokes solver are larger than the radiation damping coefficients evaluated by the linear potential theory due to viscous and vortex effect.

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Evaluation of viscous forces acting on a moving body by Navier-Stokes solver

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