Effect of ship hull form on the resistance penalty from biofouling
Artikel i vetenskaplig tidskrift, 2018

Hull biofouling is a well-known problem for the shipping industry, leading to increased resistance and fuel consumption. Considering that the effects of hull form on resistance are known to be higher for a less slender hull, it is hypothesised in this paper that the effect of biofouling roughness on resistance is also dependent on the hull form. To test this hypothesis, previously reported full-scale numerical results on a containership are re-analysed. Form effects on roughness penalties, corresponding to KΔCT = 0.058 ± 0.025, are observed at a low speed (19 knots, Res = 2.29 × 109), which are however cancelled out by traditionally neglected roughness effects on wave-making resistance at a higher speed (24 knots, Res = 2.89 × 109). It is concluded that hull form effects on biofouling penalties can be significant at low speeds, though not generalisable for higher speeds, namely when wave-making resistance corresponds to ≥ 29% of total resistance.

frictional resistance

hull form factor

ship resistance

Turbulent boundary layer



Dinis Oliveira

Mekanik och maritima vetenskaper, Maritima studier, Maritim miljövetenskap

Ann I. Larsson

Unknown organization

Lena Granhag

Mekanik och maritima vetenskaper, Maritima studier, Maritim miljövetenskap


0892-7014 (ISSN) 1029-2454 (eISSN)

Vol. 34




Annan teknik