The Study on the Resistance Test Performance of BPPT Mini Submarine

Erwandi,; Utina, Mohammad Ridwan; Murwatono, Totok Triputrastyo; Sadiah, Siti

doi:10.5220/0008549701340138

Cited by 2 publications

(2 citation statements)

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“…Much research has dealt with the challenge of predicting the hydrodynamics resistance of various submarines and other underwater vehicles, both experimentally and numerically. Thus, towing tank experiments were recently conducted to study the resistance of underwater vehicles [4,5] and submarines [6]. Huifeng et al [7] used computational fluid dynamics (CFD) to calculate the resistance coefficient of a towed manned submersible.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic Tests of Innovative Tourist Submarine

Parunov,

Pedišić-Buča,

Gatin

et al. 2023

JMSE

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This paper deals with the resistance, towing, seakeeping, and open water propeller tests of an innovative tourist submarine model. Tests were performed in a 276 m long towing tank. As the submarine model is a complex structure composed of various parts attached to the pressure hull, the largest possible model, in the scale of 1:5.0, was produced, considering the towing tank depth and the capabilities of the measurement equipment. Resistance tests were performed in deep water and on the surface in calm water. The tested speed range in both cases was up to 5.5 knots. To ensure the avoidance of free surface effects, resistance tests in deep water were performed for different draughts and then extrapolated to infinite water depth. Smaller effective powers were found for the surface condition. The results are compared to an independently performed computational fluid dynamics (CFD) analysis using OpenFOAM. A fair agreement between the experimentally and numerically predicted effective power is found, while the reasons for the differences found are explained. The free submarine model was towed with a rope performed for the speed range 1.7 kn–3.5 kn, and the towing force in the rope was measured. Seakeeping tests in irregular beam waves at zero speed were performed to check the flooding risk on open hatches. Open water tests of the main thrusters for propelling the submarine were conducted, indicating that both power demand and propeller thrust are slightly larger compared to the initial estimates.

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Section: Introductionmentioning

confidence: 99%

Hydrodynamic Tests of Innovative Tourist Submarine

Parunov,

Pedišić-Buča,

Gatin

et al. 2023

JMSE

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“…As with any object in a fluid, a submarine must conform to Archimedes' Principle, which states that a body immersed in a fluid has an upward force on it (buoyancy) equal to the weight of the displaced fluid, (displacement). This applies whether the submarine is floating on the water surface, or deeply submerged [2,3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis on Sinking Time of Littoral Submarine in Various Trim Angle

Sinaga¹

2018

AMM

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A submarine must conform to Archimedes’ Principle, which states that a body immersed in a fluid has an upward force on it (buoyancy) equal to the weight of the displaced fluid, (displacement). Submarines are ships capable of being submerged. The history of submarines and their operation have largely revolved around being able to alter the density of the vessel so that it may dive below the surface, maintain a depth, and return to the surface as needed. The way modern submarines accomplish this task is to bring in and remove water from tanks in the submarine called ballast tanks. Ballast tanks fit into two categories: those used for major adjustment of mass (main ballast tanks); and those used for minor adjustments (trim tanks). The effect of each tank is plotted and this is compared with the changes in mass and trimming moment possible during operations using a trim polygon to determine whether the ballast tanks are adequate. On the water surface, metacentric height (GM) is important, whereas below the surface it is the distance between the centre of buoyancy and the centre of gravity (BG) which governs the transverse stability of a submarine.

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The Study on the Resistance Test Performance of BPPT Mini Submarine

Cited by 2 publications

References 0 publications

Hydrodynamic Tests of Innovative Tourist Submarine

Hydrodynamic Tests of Innovative Tourist Submarine

Experimental Analysis on Sinking Time of Littoral Submarine in Various Trim Angle

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