Influence of Flanks on Resistance Performance of High-Speed Amphibious Vehicle

Pan, Dibo; Xu, Xiaojun; Liu, Bolong

doi:10.3390/jmse9111260

Cited by 16 publications

(2 citation statements)

References 35 publications

(53 reference statements)

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“…Yamashita et al [3] aimed to propose a methodology for simulating amphibious vessels transitioning between land and water modes. Sun et al [4] and Pan et al [5] conducted studies using experiments and simulations to improve resistance performance by adding flaps as attachments to reduce lateral resistance of high-speed amphibious vehicles. Liu et al [6] performed optimal design using CFD by selecting and analyzing shape control parameters as optimal design variables to reduce the hydrodynamic resistance of an amphibious vehicle, comparing the results with experiments.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Influence of Wheel Attachments on Resistance Performance of Amphibious Vessel for Marine Debris Collection

Jeong,

Nam,

Park

et al. 2024

JMSE

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This study aims to investigate the influence of wheel configurations on hydrodynamic resistance of an amphibious vessel through experiments and simulations. To evaluate the resistance performance associated with wheel attachments, three configurations were examined: vessel without attachments, with caterpillars, and with both caterpillars and shoe−paddles. A comprehensive series of computational fluid dynamics (CFD) simulations were conducted for these attachment types, complemented by experimental validations. The Volume-of-Fluid (VOF) model was employed in CFD simulations to capture the free surface movement, and the Dynamic Fluid–Body Interaction (DFBI) model was adopted to represent the two-degree-of-freedom motion of the vessel, specifically trim and sinkage. The total resistance derived from CFD simulations was calculated across a range of Froude numbers (Fns), including the design speed of the target vessel, and validated through model tests conducted in a wave basin equipped with a towing facility. The analysis indicated a general increase in resistance when attachments were added to the amphibious vessel. Remarkably, at the design speed (Fn = 0.27), the total resistance with both caterpillars and shoe−paddles exceeded that of the configuration without any attachments by more than 75.7%. These results provide crucial insights for the preliminary design stage of amphibious vessels, particularly those intended for marine debris collection in hard-to-reach areas.

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Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Influence of Wheel Attachments on Resistance Performance of Amphibious Vessel for Marine Debris Collection

Jeong,

Nam,

Park

et al. 2024

JMSE

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“…In recent studies, it has been demonstrated that installing stern flaps and underwater tail hydrofoils on amphibious vehicles can significantly enhance wave compression and resistance reduction [8][9][10][11][12]. Both these additions are instrumental in adjusting the vehicle's attitude and optimizing the flow field around the vehicle's hull [13].…”

Section: Introductionmentioning

confidence: 99%

Study on the Impact of Tail Wing Profiles on the Resistance Characteristics of Amphibious Vehicles

Jiang,

Ding,

2024

JMSE

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The resistance performance of amphibious vehicles can be improved by installing underwater tail hydrofoils. The research on the impact of different hydrofoil profiles on the resistance characteristics of amphibious vehicles can provide a reference for the vehicle’s design. For an amphibious vehicle model, five shapes of symmetrical hydrofoils, NACA0012, NACA0015, NACA0016, and asymmetric hydrofoils NACA23012, NACA66-209, were selected as the underwater tail wing of the vehicle body, respectively. Based on the RANS method and overset grid technology, the resistance performance of the vehicle body was numerically calculated, and the resistance variation in the amphibious vehicle equipped with different tail hydrofoils at 0.43 < Fr∇ < 1.3 speed was obtained. The basic shape of amphibious vehicle tail wings can be determined by comparing the effects of symmetrical hydrofoils and asymmetric hydrofoils on body resistance. The results show that the asymmetric hydrofoils have a better resistance reduction effect on amphibious vehicles than the symmetrical ones. Among them, an amphibious vehicle installing the asymmetric hydrofoil NACA66-209 as an underwater tail wing can reduce resistance by 44.3%. Chord length is an important factor affecting the resistance reduction performance of tail wings. When Fr∇ = 1.3, the asymmetric hydrofoil optimized based on chord length has a 21.2% higher resistance reduction effect on amphibious vehicles.

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Research on shipping energy-saving technology: Hydrofoil amphibious vehicle driven by waterjet propulsion

Liu

Pan

et al. 2023

Journal of Cleaner Production

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Influence of Flanks on Resistance Performance of High-Speed Amphibious Vehicle

Cited by 16 publications

References 35 publications

Experimental and Numerical Study on Influence of Wheel Attachments on Resistance Performance of Amphibious Vessel for Marine Debris Collection

Experimental and Numerical Study on Influence of Wheel Attachments on Resistance Performance of Amphibious Vessel for Marine Debris Collection

Study on the Impact of Tail Wing Profiles on the Resistance Characteristics of Amphibious Vehicles

Research on shipping energy-saving technology: Hydrofoil amphibious vehicle driven by waterjet propulsion

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