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Keywords: simulation
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Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-087
... order to validate the developed coupling method, the computed drift force and turning trajectory with the presence of an incident wave are compared with existing experimental data. Then, by implementing the trajectory tracking method based on rudder control, the free-running simulation for ship keeping...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-069
..., Zhoushan, China ABSTRACT In the present study, the two-dimensional tidal current and oil spill numerical model was established by using MIKE21/SA (Spill Analysis). After validation, the model was applied to simulate the diffusion of the oil spill under the second phases of the reclamation project in...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-121
... floating body dynamics using convolution integral, and crane wire is treated as simple spring. Installation structure is assumed as a rigid body with 6DOF motion. As in the experiment, numerical simulations in regular wave are performed. Characteristics of vessel motion and wire tension according to wave...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-084
... simulation test is carried out by Abaqus, and the rationality of the improved model is verified. The results show that the modified Cambridge model of marine soft soil effectively simulates the stress-strain characteristics of marine soft soil, the nonlinear characteristics of the soft soil and the...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-005
... bodies developed by Wan Decheng's research team in Shanghai Jiao Tong University is used to numerically investigate complex ship motion problem in stopping maneuver. The simulation starts from the steady state of self-propulsion and the propeller is controlled to a reverse speed to achieve the ship...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-122
... offshore cranes, there is a need to synchronize the operation of two or more cranes, which reduces the safety of the operation compared to using one offshore crane. Therefore, we must perform an analysis to confirm the stability of the operation in advance. In this paper, we have developed a simulation...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-007
... vibrating conditions when experiencing oscillatory flow. In this paper, a series of numerical simulations are carried out by the in-house CFD code naoe- FOAM-SJTU, which is developed basing on the open source code OpenFOAM with overset grid capability. The diameter of the cylinder is 0.02m and the KC...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-085
... of Jiangsu Province was simulated. By comparing the seabed response results of four tests with cover stones under the same wave conditions, it shows that the thickness and porosity of the cover stones are two important parameters of anti-liquefaction capacity. INTRODUCTION The stability of...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-016
... numerical simulation. For the earthquake loading, Chen et al . (2018) has developed the analytical solution for layered porous seabed under vertical seismic motion. loading pressure response laboratory experiment reservoir characterization equation pore pressure meshfree method dynamic...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-049
... ABSTRACT A series of numerical simulations were carried out to investigate the current generation performance in deepwater ocean engineering basin (DOEB) of KRISO. In the numerical simulations, unsteady Reynolds averaged Navier-Stokes (RANS) equations were solved to study the flow...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-054
... it to detect a line failure. The accuracy of the system is demonstrated using numerical simulations for an FPSO in various sea states, where a line break occurs at one time instant during the simulation. INTRODUCTION A moored floater is a 6-DOFs system where the loads are stochastic environmental...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-073
... ABSTRACT Because of the continuous advances in computational fluid dynamics, the use of numerical simulation to assist ship and marine structure hydrodynamic performance prediction has become common. This paper presents a numerical study of the generation and propagation of long- crested wave...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-134
... numerical model offshore pipeline mechanism hydrodynamic force instability hydraulic gradient upstream oil & gas flow-induced instability seepage flow maximum upward hydraulic gradient pipeline pipe-soil system submarine pipeline coupling simulation gradient flow velocity...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-081
... ABSTRACT This study presents results of numerical simulations on the effects of the presence of breakwaters on the OWC (Oscillating Water Column) performance. CFD (Computational Fluid Dynamics) simulations using a commercial code, Star-CCM+, are done for evaluating performances of the OWC...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-024
... wave height load cell upstream oil & gas cfd model mesh study experiment validation wave-current generation inlet boundary simulation inline force equation cylinder circular cylinder mesh cfd result calm water bow wave height boundary regular wave vertical cylinder...
Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-058
... closed-loop system, a stability proof in the Lyapunov sense is carried out. The theoretical results were validated in numerical simulations using Matlab. These results show that the methodology presented in this work is highly satisfactory for the control gain selection in the trajectory tracking control...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-001
... computationally efficient numerical multi-body simulation program, which is flexible in geometry and dynamic load spectrum. It features a particle-based liquid model and provides time accurate hydrodynamic pressure results in three dimensions and 6 Degrees-of- Freedom. Based on the results of dam break tests and...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-051
...). current effect free surface boundary condition numerical simulation equation wave radiation interaction problem wave diffraction pressure distribution froude number fr 0 diffraction problem cylinder simulation body surface boundary condition fr 0 forward speed circular cylinder...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-112
... Abstract In this study, three-dimensional numerical simulations are performed to study the VIV of two side-by-side cylinders of different diameters in a steady flow. The two cylinders are rigidly connected together and elastically mounted as a single body. The main aim of the study is to...
Proceedings Papers

Paper presented at the The Twelfth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 4–7, 2016
Paper Number: ISOPE-P-16-113
... Abstract The flow around a circular cylinder at Reynolds numbers near the drag crisis was numerically simulated based on a dynamic Smagorinsky Large Eddy Simulation (LES) model at two Reynolds of Re = 1.0 × 10 5 and 6.0 × 10 5 . The flow structures and the hydrodynamic force on the cylinder...

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