Numerical Study of Unsteady Breaking Waves Induced by a Submerged Hydrofoil at Steady Forward Speed

Contento, Giorgio and Lupieri, Guido and Jasak, Hrvoje and Vukčević, Vuko (2015) Numerical Study of Unsteady Breaking Waves Induced by a Submerged Hydrofoil at Steady Forward Speed. = Numerical Study of Unsteady Breaking Waves Induced by a Submerged Hydrofoil at Steady Forward Speed. In: NAV 2015 18th International Conference on Ships and Shipping Research, 24-26.6.2015., Lecco, Italija.

Preview

Text Numerical and Experimental Hydrodynamic_Paper_8.pdf - Published Version Jezik dokumenta:English Download (1MB) | Preview

Abstract

In this work we analyse the features unsteady breaking of two dimensional free surface waves induced by a submerged hydrofoil at steady forward speed. The study is conducted by means of numerical simulations with OpenFOAM: interFoam and swenseFoam solvers being used as a computational framework for the free-surface treatment with the Volume Of Fluid (VOF) and Level Set (LS) techniques respectively. Due to the strongly unsteady behaviour of the flow, the interest is here focused on the spectral content of the free surface elevation. The results from two interface-capturing methods, VOF and LS are discussed and compared with experimental data from the literature. The influence of the turbulence models on the free surface shape and spectral content is also discussed. The final goal of the entire research work is the simulation of complex two-phase flows for robust and fast engineering applications in the ship hydrodynamics and wave loads fields, including wave breaking phenomena.

Item Type:	Conference or Workshop Item (Lecture)
Keywords (Croatian):	unsteady breaking waves, VOF, Level Set, turbulence models, OpenFOAM
Subjects:	TECHNICAL SCIENCE > Shipbuilding
Divisions:	500 Department of Energy, Power Engineering and Environment > 530 Chair of Turbomachinery
Indexed in Web of Science:	No
Indexed in Current Contents:	No
Citations SCOPUS:	1 (19.09.2017.)
Date Deposited:	08 Apr 2016 11:36
Last Modified:	19 Sep 2017 15:30
URI:	http://repozitorij.fsb.hr/id/eprint/5531

Actions (login required)

View Item