Numerical Prediction of Resistance of Planning Vessel with RANS Method

Wang, Yucheng

doi:10.2991/iccsae-15.2016.55

Cited by 1 publication

(2 citation statements)

References 7 publications

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“…This study predicted total resistance, generated wave pattern and, lift force of a planing hull model moving in a shallow channel over three regions of speed, (subcritical, critical, and supercritical). Numerical results were validated by comparison with experimental data available in the literature [14] .…”

Section: Resultsmentioning

confidence: 99%

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A CFD Study of the Resistance Behavior of a Planing hull in Restricted Waterways

Elaghbash¹

2021

SUSTAIN MAR STRUCT

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The demand for high-speed boats that operating near to shoreline is increasing nowadays. Understanding the behavior and attitude of high-speed boats when moving in different waterways are very important for boat designer. Usually, they using experimental model testing for resistance prediction and dynamic force but this method is high consuming time, and cost. When planing boats are moving at high speed, two forces participate in their support, they are the hydrodynamic lift created by the shape of the planing hull, and the lift force resulting from displacing part of the liquid (buoyancy force).This research uses a CFD (Computational Fluid Dynamics) analysis to investigate the shallow water effects on prismatic planing hull. The turbulence flow around the hull was described by Reynolds Navier Stokes equations RANSE using the k-ɛ turbulence model. The free surface was modelled by the volume of fluid (VOF) method. The analysis is steady for all the ranges of speeds except those close to the critical speed range Fh =0.84 to 1.27 due to the propagation of the planing hull solitary waves at this range. For this fluctuation in the results, the average numerical value of the results was taken to compare it with the experiment.In this study, the planing hull lift force, total resistance, and wave pattern for the range of subcritical speeds, critical speeds, and supercritical speeds have been calculated using CFD. The numerical results have been compared with experimental results. The dynamic pressure distribution on the planing hull and its wave pattern at critical speed in shallow water were compared with those in deep water.The numerical results give a good agreement with the experimental results whereas total average error equals 7% for numerical lift force, and 8% for numerical total resistance. The worst effect on the planing hull in shallow channels occurs at the critical speed range, where solitary wave formulates.

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Section: Resultsmentioning

confidence: 99%

“…Moreover, heave motion, pitch angle, free surface deformation, and resistance of planing vessels were obtained through this analysis by Wang [14] in deep water.…”

Section: Introductionmentioning

confidence: 99%

A CFD Study of the Resistance Behavior of a Planing hull in Restricted Waterways

Elaghbash¹

2021

SUSTAIN MAR STRUCT

View full text Add to dashboard Cite

show abstract

Numerical Prediction of Resistance of Planning Vessel with RANS Method

Cited by 1 publication

References 7 publications

A CFD Study of the Resistance Behavior of a Planing hull in Restricted Waterways

A CFD Study of the Resistance Behavior of a Planing hull in Restricted Waterways

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