TY - CHAP
T1 - Effects of Homogeneous Hull Surface Roughness on the Ship Friction Resistance
AU - Akbar, Rajabal
AU - Suastika, I. Ketut
AU - Utama, I. Ketut Aria Pria
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
PY - 2024
Y1 - 2024
N2 - Biofouling stuck on the ship hull increases the surface roughness of the hull, resulting in an increased ship resistance and leading to increased ship fuel consumption with the associated air pollution. Effects of homogeneous hull surface roughness on the ship friction resistance are investigated in this study by utilizing a computational fluid dynamics method. Four surface conditions are considered, namely, a smooth surface and three rough surfaces, denoted as P, Q, and R, with equivalent sand-grain roughness height ks = 125, 269, and 425 μm, respectively. Simulation results show that the friction-resistance coefficient CF increases with increasing ks for the same Reynolds number Re. For the smooth surface case, CF decreases with increasing Re, but it increases with increasing Re for the rough surface case. For the mild-biofouling case considered in this study, the increase of CF reaches 57.08% at Re = 2.16 × 109 and 63.36% at Re = 2.73 × 109.
AB - Biofouling stuck on the ship hull increases the surface roughness of the hull, resulting in an increased ship resistance and leading to increased ship fuel consumption with the associated air pollution. Effects of homogeneous hull surface roughness on the ship friction resistance are investigated in this study by utilizing a computational fluid dynamics method. Four surface conditions are considered, namely, a smooth surface and three rough surfaces, denoted as P, Q, and R, with equivalent sand-grain roughness height ks = 125, 269, and 425 μm, respectively. Simulation results show that the friction-resistance coefficient CF increases with increasing ks for the same Reynolds number Re. For the smooth surface case, CF decreases with increasing Re, but it increases with increasing Re for the rough surface case. For the mild-biofouling case considered in this study, the increase of CF reaches 57.08% at Re = 2.16 × 109 and 63.36% at Re = 2.73 × 109.
KW - Biofouling
KW - Friction resistance
KW - Homogeneous roughness
KW - KCS
UR - http://www.scopus.com/inward/record.url?scp=85204950436&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-67788-5_5
DO - 10.1007/978-3-031-67788-5_5
M3 - Chapter
AN - SCOPUS:85204950436
T3 - SpringerBriefs in Applied Sciences and Technology
SP - 39
EP - 46
BT - SpringerBriefs in Applied Sciences and Technology
PB - Springer Science and Business Media Deutschland GmbH
ER -