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Keywords: computation
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Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3189
... using a three–dimensional Weak Compressible Smoothed Particle Hydrodynamic model (WC–SPH). The Froude number similarity is used to design a computational model of the scaled model in 1:10000. In order to reduce the computational cost, an Adaptive Particle Refinement (APR) is used. We focus...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3173
... the simulation flexible for operation, and MPI parallel method and data structure methods, such as ADT and KD-tree methods, are used in order to make computation speed efficient. With the help of overset grid solver, CFD solver can efficiently simulate fluid-body (or wave-body) interaction problems of multi-body...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-4131
... The ultimate strength of corroded steel plates with pitting corrosion is studied by stochastic FEM in this paper. An automatic 3D Finite Element Method(FEM) computation procedure scripted by MATLAB/ABAQUS/Python is proposed for stochastic solid model of corroded plates. Finishing great amount...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3128
... that alter the near-field hydrodynamics. Not all models are capable of accurately simulating the above. In a comprehensive review Hayatdavoodi and Ertekin (2016) presents the key studies relevant to waves interacting with bridge decks and flat plates. renewable energy computational domain...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-309
... ABSTRACT This paper employs computational tools to predict power increase (or speed loss) and propulsion performances in waves of KVLCC2. Four methods to predict speed-power relationship in waves are discussed; Taylor expansion, direct powering, load variation, resistance and thrust identity...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-436
... the various methods, sloshing model test is considered the most reliable but expensive way. Therefore, prescreening sea-states which can cause severe sloshing load is important to carry out sloshing model test efficiently. The prescreening method based on Rankine Panel Method is fast in computation...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-120
... structure was conducted, and highly efficient thermal-elastic-plastic FE analysis with Iterative Substructure Method (ISM) and parallel computation was carried out for welding deformation prediction while quarter FE model of rack and cylinder welded structure was employed due to its symmetrical feature...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-305
... to a propeller and the effect to self-propulsion factors is observed in the model test. However it is typically difficult to predict the effect by Computational Fluid Dynamics (CFD) because a fin is considerably smaller than the hull and there is a distance between a fin and a propeller. To clarify the mechanism...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-308
... be attributed to the effective pitch used since the open water computations of IIHR was not considered in this computations. Though the thrust prediction was reliable, the torque deviation was comparatively higher due to the value of coefficient of drag used in the propeller code. The computationally predicted...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-076
.... Validation computations on the numerical model are performed by comparing the wave forces on horizontal cylinder with other experimental and numerical results. Wave forces on pile structures are obtained and compared with the prediction of Morison equation, and the agreement is quite well which proves...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-472
... for harbor manoeuvring data. hydrodynamic performance computation freight & logistics services lateral motion navigation lateral force reservoir simulation ship speed numerical computation ship water depth upstream oil & gas cross flow hull equation convergence study...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-731
... the singular stress field at crack tip and its invariant parameters, such as principal values or the second order invariant of the tensor for example. They are used to compute ΔΚ in a consistent manner. Potential capability of the proposed Characteristic Tensor Method (CTM) is demonstrated through examples...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-664
..., or too computationally time consuming. The present unsteady body force method only considers the circumferential mean propeller induced velocities, and this assumption not only saves the computational time, but also makes the number of iterations for convergence dramatically reduced. The numerical...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-718
... The paper describes the main features of the pipelined Tsunami Modeling Infrastructure supporting high-speed tsunami modeling on system with rather limited computational resources. The pipelining scheme is realized by distributing bathymetries over computational resources and synchronization...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-553
... surface hyper-singular integral equation generalized mode computation dissipation wave elevation Application of Hyper-Singular Integral Equations for a Simplified Model of Viscous Dissipation C.-H. Lee and X. Zhu WAMIT Inc. Chestnut Hill, MA USA ABSTRACT In the context of linear potential flow...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-209
... ABSTRACT A numerical study is proposed to highlight the sensitivity of the structural response with respect to the fluid pressures derived by a fluid dynamics analysis. The fluid characteristics are computed by using two Computational Fluid Dynamics (CFD) methods, namely a Unsteady Reynolds...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-277
..., a lot of time and cost are consumed. Therefore, the hydrodynamic performance estimation by using CFD is used in recent years. But it has not reached the perfect estimation range for such AUVs. In this study, several mesh system and turbulence models are examined to evaluate the accuracy of the computed...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-279
... rotational velocity generator equilibrium wind energy modeling power curve offshore projects planning and execution platform design hub height artificial intelligence discretization computation displacement rotor system offshore wind turbine rotational momentum reservoir...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-458
... predictions are relying on comprehensive initial conditions of sea ice variables and ocean variables and an ability of forecast systems to capture high-frequency atmospheric variability and associated feedbacks. ice concentration ocean ice edge error northern sea route computation concentration...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-062
... to conduct systematic numerical examination and to enhance physical understanding on the basic characteristics of tsunamis generated by submerged landslides. surface elevation tsunami generation initial location computation evolution characteristic slope angle wave height variation time...

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