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Keywords: resistance
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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-23-440
... investigations and reliability analyses were systematically carried out for austenitic and duplex stainless steel and carbon steel bolts on the tension, single-/double-shear and interaction resistance. Finally, more economical and harmonised design rules for stainless and carbon steel bolts could be developed...
Proceedings Papers
Dongsheng Xu, Jin Yang, Yuhang Zhao, Kuo Ma, Zengcheng Han, Jianchun Fan, Zhiliang Wen, Frank Lim, Chunlin Zhu, Rao Cai, Xi Xia, Hong Zhu, Kaidie Yang
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-441
... operation conductor surface conductor asia government conductor shoe rock cuttings puncture conductor shoe stress change fraction quick puncture tube shoe maximum stress swirl rib upstream oil & gas china government tube shoe ordinary tube shoe resistance Proceedings of the Thirty...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-451
... that hydrogen leads to increased susceptibility under fatigue loading as well as a decrease in fracture resistance. It is necessary to have a sufficiently detailed knowledge on the magnitude of these effects in order to allow for safe yet cost-effective pipeline solution for transport of H 2 . Despite having...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-352
... ABSTRACT Time step and dimensionless wall distance y + are important factors in full scale numerical simulation. In order to analyze the influence of y + value and time step on numerical calculation of full-scale vessel resistance, Reynolds-averaged Navier-Stokes (RANS) equations are taken...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-355
... for various conditions. For example, due to the large separation around the bow shoulder under oblique sailing, vortexes cannot be simulated with high accuracy by standard turbulence models. In the present study, we have performed numerical resistance tests and flow field analyses for the JBC and KVLCC2...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-375
... tank. The potentiometer was used to measure the roll and pitch motion of the ship. Two load cells were attached between the ship bottom and the heave rod to measure the wave forces acting on the ship hull. Firstly, the pitch RAO and added resistance without the LNG tank are compared with the results...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-318
... and maintaining excellent resistance performance. However, it is crucial to guarantee the safety of these operations since the potential consequences can be critical. In this context, methods that accurately compute the forces and moments of these new hull designs are sought, as well as the enhancement...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-329
... ABSTRACT The most commonly used under water acoustic equipment on the maritime research vessel, sonar, is usually enclosed by a fairing to reduce the influence of the bubble sweep-down, resulting in additional appendage resistance. It is important to study the appendage resistance and bubble...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-331
... well and includes different high-order component. Second order forces are studied by near field method and present method is provided with accuracy and stability in time domain calculation of added resistance of S175. INTRODUCTION Nowadays, hydrodynamic analysis models for ship advancing in waves...
Proceedings Papers
Numerical Investigations of Seakeeping Performances of KCS in Head Waves Using Viscous/Hybrid Models
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-348
.... INTRODUCTION During the actual voyage, the complex environmental factors, such as wind, waves and currents, will bring out the significant ship motions and then affect the resistance and speed of the ship. Thus, it is very important for ship safety and economy to be able to predict the seakeeping behaviors...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-508
... shallow water reservoir simulation air lubrication reduction marine transportation europe government kvlcc2 surge force air lubrication system flow rate resistance sway force frictional drag effectiveness upstream oil & gas india government ship hull air injection experiment...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-515
... angle willlead resistance boundary cfd method yangying accuracy vortice Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-520
... based on parametric modeling, uniform test design, CFD numerical simulation, neural network and hull optimization technique. The hull parameter spectrums are generated based on meshing schemes of certain principal dimensions by minimizing the resistance and modifying the hull parameters slightly...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-521
... ABSTRACT To reduce the power requirement of a sail-assisted VLCC, the hull form is optimized by comprehensively considering the resistance, wake field and sail boosting capacity. Firstly, the sail boosting capacity is analyzed to determine the principal dimensions. Then the local hull...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-527
... ABSTRACT In the early stage of preliminary ship design, hull form optimization using viscous CFD technology for reduced resistance is sometimes time-consuming and unnecessary. A practical potential-flow based ship hydrodynamic optimization tool has been developed in the present paper...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-528
... ABSTRACT The resistance performance of ship is important for sailing and economy. For obtaining a less consumption of fuel, number of measures are taken. The deformation of marine structures is the basis for marine structure hydrodynamic performance optimization. In this paper, a barycentric...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-530
... ABSTRACT More recently, invisible bulbous has been widely used for ship resistance reduction. However, the inner mechanism for its effect remains unclear. Considering this problem, the present study systematically investigates the hydrodynamic performance of two ship models, one with a regular...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-533
... ABSTRACT Recently, with the implementation of the IMO guidelines about EEDI, added resistance simulation methods with higher precision are needed for the optimization of energy efficiency. With the enlargement tendency of ships in recent years, the encountering waves in real sea states has...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-539
... combination can then be assessed using traditional techniques to validate the prediction. In this paper, Deep Neural Network (DNN) has been used to construct a surrogate mathematical model ( meta-model ) to predict the optimum parameters of the stern flap for reducing the total resistance, of a high-speed...
Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-454
... is of increasing concern to Oil & Gas companies. However, only a few papers (Martin and Braga, 1986; Hilliard, 1984; Jia, Yang, Bin Abd Rahman and Gu, 2017) have evaluated the effect of polymers on corrosion of carbon steel, using mainly WL (Weight Loss) of coupons, LPR (Linear Polarization Resistance...
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