Computation of Flows Around the Transom Stern Hull by the Modified Rankine Source Panel Method

Saha, Goutam Kumar; Tarafder, Md. Shahjada

doi:10.3329/jme.v43i1.15766

Cited by 1 publication

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“…(11 is applied to the region after the transom stern of a ship, the velocity at the intersection curve between the free surface and the transom needs to be estimated by an approximate approach. This paper follows the approximation proposed by Saha et al (2013 , in which the velocity is evaluated by Bernoulli's equation with the assumption that the flow at the intersection curve is tangential to the hull surface. The readers are referred to the cited reference for more details.…”

Section: Basic Equationsmentioning

confidence: 99%

Effects of the terms associated with ϕzz in free surface condition on the attitudes and resistance of different ships

Gong

et al. 2018

Engineering Analysis with Boundary Elements

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Citation: Li, Y., Gong, J., Ma, Q. ORCID: 0000-0001-5579-6454 and Yan, S. ORCID: 0000-0001- 8968-6616 (2018). Effects of the terms associated with phi(zz) in free surface condition on the attitudes and resistance of different ships. Engineering Analysis with Boundary Elements, 95, pp. 266-285. Abstract:One of approaches for numerical simulation of a ship moving in a still water is based on the composition of double-body flow and wavy flow solved by a boundary element method. There are several terms related to the second order derivative ( of double-body flow velocity potential with respect to the vertical coordinate in the free surface conditions. Understanding of the effects of the terms is very limited so far. In many cases, they are just ignored even for ships with a high forward speed, particularly in the cases associated with multihull ships, for which no investigations on their effects have been found. This paper will present a study on the effects of the terms on the numerical prediction of the attitudes and resistance of different ships in various situations, including monohull, catamaran and trimaran with different parameters and at different Froude numbers. The results will demonstrate that the effects of the terms are significant in many cases and that considering this term may lead to the results similar to those obtained by fully nonlinear models at high Froude numbers.

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Section: Basic Equationsmentioning

confidence: 99%

Effects of the terms associated with ϕzz in free surface condition on the attitudes and resistance of different ships

Gong

et al. 2018

Engineering Analysis with Boundary Elements

View full text Add to dashboard Cite

show abstract

Computation of Flows Around the Transom Stern Hull by the Modified Rankine Source Panel Method

Cited by 1 publication

References 3 publications

Effects of the terms associated with ϕzz in free surface condition on the attitudes and resistance of different ships

Effects of the terms associated with ϕzz in free surface condition on the attitudes and resistance of different ships

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