Effects of Parallel-Middle-Body Relative Length and Stern Form on the Wake Fraction and Ship Resistance

Suastika, I Ketut; Nugraha, Fajar

doi:10.4028/www.scientific.net/amm.862.278

Cited by 1 publication

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Parts of the present study were presented at the 3 rd International Seminar on Ocean and Coastal Engineering, Environmental and Natural Disaster Management (ISOCEEN), 10 December 2015, Surabaya, Indonesia (Suastika & Nugraha, 2017). Ocean Engineering,Volume 58, …”

Section: Acknowledgementmentioning

confidence: 99%

Parallel-middle-body and Stern-form Relative Significance in the Wake Formation of Single-screw Large Ships

Suastika¹,

Nugraha²,

Utama³

2017

IJTech

Self Cite

View full text Add to dashboard Cite

The relative significance of the parallel middle body and stern form in the wake formation of single-screw large ships and their contribution to the ship's viscous resistance are studied by using computational fluid dynamics (CFD). A 10450-DWT tanker is considered by varying the ratio of the parallel-middle-body's length to the ship's length (L mb /L) and by varying the shape of the stern form from a V-like to a U-like underwater stern transom section. In all the calculations, the principal dimension and the displacement of the ships are kept constant. A larger value for the parallel-middle-body relative length (L mb /L) of ships with the same stern form results in a larger drag coefficient but does not affect the nominal wake fraction significantly. A change in the shape of the underwater stern form, from a V-like to a U-like section, results in a much larger drag coefficient ascribed to the much larger wake fraction. The stern form dominantly affects the nominal wake fraction and the ship's viscous resistance compared to the parallel-middle-body relative length.

show abstract

Section: Acknowledgementmentioning

confidence: 99%