The Hydrodynamics Performance of Aquaculture Fishing Vessel in Variation of Deadrise Angle and Sponson

Putranto, Teguh; Tjprc,

doi:10.24247/ijmperdapr201829

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Xie et al [36] proposed a framework for numerically evaluating maneuvering vessels in waves, advancing methods for assessing ship maneuverability. Aryawan and Putranto [1] analyzed the hydrodynamics performance of aquaculture fishing vessels with varying deadrise angles and sponson, contributing to the understanding of vessel stability and performance. Putranto and Sulisetyono [27] performed lift-drag coefficient and form factor analyses of hydrofoil based on shape and angle of attack variations, providing insights into hydrofoil performance.…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Assessment of Hull Geometry Influence of a Modernized Ship on Maneuvering Performance and Propulsion System Parameters

Shumylo,

Yarovenko,

Malaksiano

et al. 2023

Pomorstvo (Online)

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The necessity to preserve economic efficiency of cruise ships operation stipulates fleet modernization in order to avoid expenses on ordering and construction of new ships. In this paper an approach based on hull length increase in the process of ship modernization is discussed. The method of evaluation of changes in maneuvering characteristics of ship after modernization is developed taking into account the operational parameters of propulsive electric power plants. The calculations are based on the analysis of transient modes of propulsive power plants operation during the corresponding maneuvers. The parameters influencing the characteristics of ship motion during turning circle are revealed; their significance is estimated, comparative analysis of the effect of ship hull length on maneuvering parameters before and after modernization is carried out. It was shown that in some cases the characteristics of the ship’s controllability and operating parameters of the ship power plant after modernization remain within the permissible limits. The comparative results show that the increase in hull length leads to insignificant deterioration of the main maneuverability characteristics while the electric power plant indicators practically do not deteriorate, which confirms the expediency of such modernization.

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Section: Introductionmentioning

confidence: 99%

Comprehensive Assessment of Hull Geometry Influence of a Modernized Ship on Maneuvering Performance and Propulsion System Parameters

Shumylo,

Yarovenko,

Malaksiano

et al. 2023

Pomorstvo (Online)

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Numerical studies on internal flow in pipelines of an aquaculture vessel and flow control using a special branch pipe

Huang

Zha²

2023

Front. Mar. Sci.

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IntroductionRegarded as the world’s largest smart-aquaculture vessel so far, Guoxin No. 1, has achieved remarkable success in aim to develop large-scale cruising aquaculture platforms. Guoxin No. 1 is 816 feet long with 15 fish farming tanks, which has a tank capacity of up to 900,000 square feet. It is of great practical interest to study the pipe flow rate distribution involving oxygen and novel flow control schemes for internal flows of aquacultural facilities connecting fish farming tanks.MethodsIn this paper, three-dimensional numerical investigations on internal flow in a T-type pipeline and its flow control are carried out. A single pump is designed to convert water to two separate farming tanks through a pipeline system, which is composed of one main inlet pipe and two outlet pipes with the same diameter as that of the inlet pipe. A horizontal arrangement of the pipes, in which the flow rate of an outlet pipe must be half of the inflow rate, is firstly studied for validation. To guarantee a balanced oxygen supply, equilibrium outflow rates can be achieved as a consequence of using a branch with a smaller diameter installed on the main inlet pipe. 3-D unsteady RANS solvers were employed to simulate the incompressible viscous flow and the pipe walls were assumed as rigid bodies.ResultsA couple of flow rates and three pipe angles were then investigated to assess the change of the outflow rates. Based on the simulations, a flow control scheme was proposed including to optimize the central included angle between the main inlet pipe and the small branch pipe, and the inflow rate of the branch pipe in order to balance the outflow rates. The results show that the central included angle has a significant influence on the flow field and flow rate of the two outlet pipes.DiscussionIf the angle was fixed, it can be indicated that adjusting the flow rate of the branch inlet can be an efficient method to unify the flow rate of the outlet pipes and improve the water exchange among fish farming tanks.

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The Hydrodynamics Performance of Aquaculture Fishing Vessel in Variation of Deadrise Angle and Sponson

Cited by 2 publications

References 4 publications

Comprehensive Assessment of Hull Geometry Influence of a Modernized Ship on Maneuvering Performance and Propulsion System Parameters

Comprehensive Assessment of Hull Geometry Influence of a Modernized Ship on Maneuvering Performance and Propulsion System Parameters

Numerical studies on internal flow in pipelines of an aquaculture vessel and flow control using a special branch pipe

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