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Keywords: simulation
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Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-264
... by the Planar Motion Mechanism test simulations. INTRODUCTION Underwater caves contain numerous objects of great biological, historical, cultural, and/or paleontological significance (Fortin et al. 2021) which is the meaning to observe them. However, the condition of the underwater caves is usually complex...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-270
... ABSTRACT The main objective is to investigate the possibility that machine learning can be used in the real-time simulation of ship motion. A short-term prediction of seakeeping and maneuvering is strongly required for the navigation process. However, accurate and instant prediction remains...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-273
... ABSTRACT Numerical simulation of waves has always been a very important research topic in the field of marine engineering. However, the limitations of wave simulation by commercial simulation software are found to be very obvious in practical experiments in the field of computational fluid...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-282
... control system are assessed by tank experiments and numerical simulations. INTRODUCTION In underwater archaeology explorations, there are many problems to survey objects buried under the seafloor, such as the selection of the measuring instruments, accurate positioning method in underwater, the depth...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-284
... is particularly critical. Taking the single pontoon in the deep Cwind power platform as the model, selects a special anti-heave device, first carries out the preliminary numerical simulation, and then the model test is carried out by two measurement methods: acceleration sensor and displacement sensor...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-286
.... The simplified method recommended by IMO was used for 1-degrees-of-freedom (DOF) numerical model, Rankine Panel method and CFD method were used for 6-DOF simulation. The catenary mooring model is used to restrict the monotonously changing sway and yaw motions in CFD simulation. The nondimensional response...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-288
... improvement method, namely THINC/SW algorithm, it can effectively simulate wave propagation, climbing, rolling, breaking and other violent free surface motion. In this paper, the Cartesian grid algorithm is used to simulate irregular waves. By changing the mesh size, time step, number of linear wave...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-127
... site, the trajectory of riprap stones is difficult to predict. In this paper, CFD-DEM coupling simulations are implemented for investigating the drifting trajectory of riprap stones dropped in groups. The results of the simulations show that median value of drifting distance is logarithmic to the flow...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-302
... edge tubercles, the effects of tip to hub ratio on the hydrodynamic characteristics of a finite-span wing with leading edge tubercles were investigated by numerical simulation. The finite-span wings investigated have an underlying foil profile NACA 63 4 -021. The finite span wings have an aspect ratio...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-319
... these complex nonlinear problems, such as wave climbing, roll-over and breakage. In this paper, the model test of wave slamming on braces of semi-submersible platform was conducted in the towing tank. A numerical simulation using CFD method in a three-dimensional numerical tank was established to investigate...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-322
... conducts a numerical simulation analysis on the oblique free entry of the wedge. Firstly, the entry process of the wedge with an inclination angle of 10° was simulated. And on the basis, different conditions were chosen to study further by changing the inclination angle and the initial speed. By analyzing...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-329
... ABSTRACT Trimaran may suffer from large motion and strong bottom slamming when sailing under severe sea conditions, resulting in seriously local structural damage. In this paper, the free fall water-entry process of a trimaran cross section was simulated based on a Cartesian grid CFD code (CNT...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-346
... of the polar ship in any extreme sea condition, this paper demonstrates the capability for the simulation of ship-ice-flooding interactions in still water. The main purpose is to investigate the effects of the ice floes and concentration on the flooding process and motion responses of the damaged ship...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-206
... used instead of standard elbows in industrial practice to reduce the corrosion and erosion caused by particles (Chen, et al., 2006; Zhou, et al., 2022). Thus, the interest of this study is focused on simulating the flow in blind-tee pipes. fluid dynamics production logging blind tee flow...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-224
... numerical model for moored floating structures. The numerical model is validated against model experiments of a scaled semi-submersible, and the results show that the numerical model can accurately simulate the motion responses of moored floating structures. Furthermore, numerical analysis on the effects...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-231
... a circle of radius 6 [m] by sliding mode control (Fujii et al., 2021). neural network correction input usv main thruster machine learning conventional method sway controller wind speed neural network controller control input disturbance core sampler simulation artificial intelligence...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-236
.... In this study, the Consistent Particle Method (CPM) is enhanced by incorporating the continuum surface force (CSF) model and applied to simulate the oil spill process. Firstly, the advantage of CPM in computing the curvature of an interface, which is key in simulating the interfacial tension force...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-240
... ABSTRACT The wave impact on piers is a concerning problem for coastal bridges. In this study, the coastal bridge pier is simplified to a two-dimensional fixed submerged obstacle, and the solitary wave interaction with it is simulated by the Smoothed Particle Hydrodynamics (SPH) code SPHinXsys...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-241
... simulation lifeboat engineering particle hydrodynamic cylinder characteristic water entry dynamic sph solver sph simulation stability Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-243
... motion is fully induced by the fluid-structure interaction (FSI). Numerical simulations are carried out under a series of operating conditions by varying the prescribed motion amplitude, frequency, and angular velocity of the fish. Results show that the turning motion of the fish head is affected...

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