Naslov
Added resistance CFD analysis of the KVLCC2 with the naval hydro pack
(Added Resistance CFD Analysis of the KVLCC2 With the Naval Hydro Pack)

Autori
Vukčević, Vuko ; Gatin, Inno ; Kim, G.-H. ; Jasak, Hrvoje

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE / - : American Society of Mechanical Engineers (ASME), 2019

Skup
38th International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2019)

Mjesto i datum
Glasgow, Ujedinjeno Kraljevstvo, 09.06.2019. - 14.06.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Added resistance ; CFD ; Free surface turbulence ; Naval Hydro Pack ; OpenFOAM

Sažetak
A CFD analysis of added resistance of a KVLCC2 ship model is presented in this paper. The Naval Hydro Pack, an open source software library for computational naval hydrodynamics based on OpenFOAM is used to perform the simulations. Ten head wave cases are considered in this study, ranging from short waves to long waves (wave length to length between perpendiculars ranging from 0.3 to 2). During the initial stages of our research, we had noticed significant over-prediction of added resistance compared to experimental results. After thorough analysis, the issue was found to be related to inadequate turbulence modeling using the standard k-? SST model. Using the free surface sensitised model, the prediction of the added resistance improves significantly. Compared to the experimental results, majority of the cases with different wave lengths have errors smaller than several percent. In addition to added resistance, heave and pitch motion amplitudes are compared to recent experimental results by Park et al. [1], showing good agreement. CPU time required to perform the computations is also discussed.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA