OpenFOAM u brodskoj hidrodinamici

Vukčević, Vuko and Jasak, Hrvoje (2014) OpenFOAM u brodskoj hidrodinamici. = OpenFOAM in Marine Hydrodynamics. In: XXI. simpozij Teorija i praksa brodogradnje, in memoriam prof. Leopold Sorta = The 21st symposium Theory and practice shipbuilding, in memoriam prof. Leopold Sorta, 02-04.10.2014., Baška; Croatia.

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Abstract (Croatian)

Tema ovog rada je primjena programskog paketa OpenFOAM u brodskoj hidrodinamici. Matematički model dvofaznog strujanja sa slobodnom površinom uz korištenje "Volume of Fluid" metode je ukratko prikazan. Za diskretizaciju jednadžbi se koristi metoda kontrolnih volumena. Rezultati otpora broda na mirnom moru uspoređeni su s eksperimentalnim podatcima za dvije brodske forme. Prikazane su i simulacije vezane za pomorstvenost plovnih objekata. Razvijeni programski paket podržava pomične mreže, te se može koristiti za simulacije sa nametnutim harmonijskim gibanjem pojedinog stupnja slobode. Kao primjer, prikazani su rezultati harmonijskog zanošenja broda pri konstantoj brzini napredovanja. Konačno je prikazana simulacija poniranja i posrtanja broda koji napreduje konstantnom brzinom u polju nailaznih valova.

Abstract

The subject of this paper is the application of OpenFOAM software in marine hydrodynamics. Mathematical model for two phase flows using the Volume of Fluid method is briefly presented. Finite volume method is used for equation discretization. The simulation results of steady state resistance in calm seas are compared with experimental data for two hull forms. Seakeeping simulations are also presented. Since OpenFOAM supports mesh motion, it can be used for forced oscillation simulations. As an example, results of harmonic sway motion with forward speed are presented. Finally, the seakeeping simulation of ship advancing in head waves with constant forward speed is presented.

Item Type:	Conference or Workshop Item (Lecture)
Uncontrolled Keywords:	OpenFOAM; metoda kontrolnih volumena; otpor broda; pomorstvenost
Keywords (Croatian):	OpenFOAM; finite volume method; steady state resistance; seakeeping
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
Date Deposited:	15 May 2015 09:09
Last Modified:	06 Apr 2017 14:10
URI:	http://repozitorij.fsb.hr/id/eprint/4157

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