Extensive study on the design loads used for strength assessment of tanker and bulk carrier structures

Shigemi, Toshiyuki; Zhu, Tingyao

doi:10.1007/s00773-004-0179-5

Cited by 2 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Journée [9] carried out experiments to determine the vertical movements for 4 different models of the Wigley hull, under the influence of various wavelengths and wave amplitudes. Shigemi and Zhu [10] comment that most projects of vessels use known environmental loads for convenience, however, the real sea conditions faced by these vessels in their operating locations are different from those considered at the design stage.…”

Section: Introduction 11 Purpose and Motivationmentioning

confidence: 99%

CFD Analysis of The Heave and Pitch Motion of Hull Mode

Daruis¹,

Moreira

Fortes

et al. 2022

CFDL

View full text Add to dashboard Cite

This work aims to predict numerically the vertical motions (heave and pitch) of a Wigley ship model heading over regular waves at Campos Basin, Brazil. Critical levels of periods and amplitudes from waves are determined based on historical data, these are re-dimensioned to a small scale and used as input data to the model. The flow is assumed to be incompressible and viscous with mass and momentum fluxes being conserved. The Computational Fluid Dynamics (CFD) software ANSYS Fluent which makes use of the finite volume method (FVM) is employed to solve continuity and the unsteady Reynolds Averaged Navier-Stokes (RANS) equations with a Shear-Stress Transport (SST) κ-ω turbulence model. The air-water interface is modelled via the Volume of Fluid (VOF) method. An UDF (User Defined Function) is set to simulate only these two degrees of freedom for the ship motion and different sea conditions are simulated with Response Amplitude Operators (RAOs) being compared to experiments, with a good agreement being found. The Campos Basin wave from the Southwest direction with a 1-year occurrence period is a wave with the highest dimensionless value resulting in a 0.172 of heave and the wave that has a North direction with a 1-year occurrence period is a wave with the highest dimensionless value resulting from the 0.097° pitch.

show abstract

Section: Introduction 11 Purpose and Motivationmentioning

confidence: 99%