Numerical investigation of the effect of hard fouling on the ship resistance (CROSBI ID 683562)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Farkas, Andrea ; Degiuli, Nastia ; Martić, Ivana
hrvatski
Numerical investigation of the effect of hard fouling on the ship resistance
Biofouling is the colonization of underwater surfaces by microorganisms, plants, algae or animals and can be divided into soft and hard fouling. Soft fouling is consisted of algae, slime and grasses and typically has a lower impact on the performance of the ship than hard fouling, which has a calcareous structure. Furthermore, hard fouling can be extremely detrimental to the performance of machinery and coating systems. Within this paper, the effect of hard fouling on the ship resistance is assessed utilizing Computational Fluid Dynamics (CFD). The roughness function model for the hard fouling is implemented within the wall function of the CFD software. Afterwards, numerical simulations of fouled flat plates are performed, and the obtained results are verified and validated with the experimental results published in the literature. Once validated, numerical simulations with implemented roughness function model and roughness length scale, proposed in the literature, can be used for the determination of the effect of hard fouling on the resistance of any arbitrary body. Lastly, the effects of hard fouling on the resistance characteristics of two merchant ships at full-scale are determined utilizing the validated CFD model. Benefits of the proposed method for the determination of the effect of hard fouling on the ship resistance are highlighted and discussed.
CFD ; hard fouling ; resistance characteristics ; container ship ; crude carrier
nije evidentirano
engleski
Numerical investigation of the effect of hard fouling on the ship resistance
nije evidentirano
CFD ; hard fouling ; resistance characteristics ; container ship ; crude carrier
nije evidentirano
Podaci o prilogu
138-162.
2019.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the International Conference on Ships and Offshore Structures (ICSOS 2019)
Sahoo, Prasanta ; Ehlers, Sören ; Paik, Jeom Kee
Melbourne (FL):
Podaci o skupu
International Conference on Ships and Offshore Structures (ICSOS 2019)
predavanje
04.11.2019-08.11.2019
Melbourne (FL), Sjedinjene Američke Države