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Keywords: free surface
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Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-312
... of responsible engineering. Overall, further research is needed to improve our understanding of wave-current interactions and their effects on offshore structures and the marine ecosystem. china government working condition ripple elevation historical curve asia government interaction free surface...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-313
... freight & logistics services ship grid case asia government grid bow wave breaking marine transportation upstream oil & gas simulation numerical simulation flow field vorticity refinement bow-breaking phenomenon wave breaking breaking free surface ran method calculation...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-350
... hydrodynamics. Compared with previous methods like potential flow theory, CFD is more suitable for simulating complex two-phase flows, where violent free surface and large-scale flow separation may coexist. In addition, more detailed flow field information can be provided for in-depth analysis of flow...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-399
... of the vertical velocity is derived directly from the mass-balance equation taking the bottom slope and free surface into consideration. The explicit expression of the vertical velocity corresponds well with the measured data collected from the large-scale wave flume. Finally, the sensitivity analysis of bottom...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-352
.... A second order convection scheme was employed for the momentum equations and a first order temporal discretization was used. The free surface is captured using the volume of fluid (VOF) method, which is used to determine and track the free surface by analyzing the fluid and the volume fraction in each mesh...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-378
... to the fluctuation phenomenon inside a partially loaded cabin under external excitation, whose characters are large free surface deformation and nonlinear wave breaking. With the increasing demand for energy in the world, there are more and more ships used to carry oil and liquefied natural gas (LNG). When...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-373
... numerical results. The results show that the two are in good agreement. In particular, the evolution of free surface and phase interface is compared, and it is found that there are obvious differences between them. It is found that when the external excitation frequency is near the natural frequency...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-401
... are numerically investigated by a VOF-type (Volume of Fluid) method. A Liquid-liquid two-phase VOF method based on a multi-phase ow mathematical theory is proposed and implemented in a constraint interpolation pro le (CIP)-based model. The free surface and water-water interface are simultaneously tracked under...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-381
... to quantify global sloshing amplitudes, using the lateral motion of the centre of gravity (COG). Free surface elevations at the left and right sidewalls are also quantified. The maximum displacements obtained, for all three forcing amplitudes tested, show a softening non-linear response. In this work we refer...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-511
... boundary element method has been introduced to solve the hydrodynamic properties of a container ship. A mixed Euler-Lagrange method is utilized to calculate the velocity on free surface and further update the wet surface in each time step, which make capturing the transient free surface possible even when...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-548
... ABSTRACT The present paper analyses the vortical structures in the wake of a naval propeller operating underneath a free surface using detached-eddy simulation. We investigate the flow topology for several loading conditions and compare it with analogous observations behind a propeller...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-103
...) technique is applied to track the free surface between air and water. The numerical model is validated with the experiments carried out at a wave flume at Dalian University of Technology. It is found that there are two peak crests and one fluctuation in the time-history of the total horizontal wave force...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-104
... between air and water. The VOF method, proposed by Hirt and Nichols (1981), is an efficient and simple method for dealing with complex free surfaces that uses minimal stored information to automatically process the intersecting free boundaries. The VOF method can capture the distribution and motion...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-138
... incident waves and semisubmersible. In the boundary element method (BEM), auxiliary functions are introduced to calculate wave forces indirectly after the boundary integral equation is solved. The fully nonlinear boundary conditions are considered to track the free surface with total Lagrangian method...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-042
... platform sustainability europe government sustainable development model test second-order model free surface iea 15mw kc number consistent second-order model viscous drag load drag load coefficient amplitude modeling oscillation formulation coordinate system motion response Proceedings...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-522
... engineering grid reservoir simulation asia government wave height flooding pitch motion computational domain frequency free surface equation coordinate system head wave simulation result dtmb 5415 stability Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-306
... dawson wave resistance theoretical result model iii coefficient slender body geometry submarine free surface spheroid trim angle kozin formula ice cover submergence depth lift force magnitude length-to-diameter ratio ABSTRACT The article touches upon an unsteady...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-329
...-CGCFD). The numerical simulation results of vertical acceleration, slamming load and evolution of free surface are compared with the model test data. Results show that the present method can solve the water-entry of trimaran section accurately, and the slamming loads on cross deck are reduced by the air...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-347
... slope resistance head sea computation free surface wavelength motion response free-running test ocean engineering prediction experiment wave case ship performance test method propeller Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai...

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