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Proceedings Papers
Numerical Analysis and Validation of Point Absorber Wave Energy Converters for the Indian Coast
Available to Purchase
Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-111
... to the float at a certain depth with the help of a tether. The hydrodynamic parameters consist of radiation damping coefficient, added mass, and excitation forces, and they are determined using ANSYS AQWA, a boundary element method (BEM) based software. The PA displacement and produced power are calculated...
Proceedings Papers
Towards GHG Reduction: A Quick Assessment Methodology for Predicting Ship's Power Demands During Maritime Operations
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-121
... cleaning. Despite antifouling coatings and regular maintenance, biofouling persists, leading to significant increases in frictional resistance and power demands. roughness equation climate change coefficient power demand dogancan uzun resistance ship hull air emission fouling ghg emission...
Proceedings Papers
Hydrodynamic Performance of a Trapezoidal-Shaped Oscillating Water Column Wave Energy Device
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-126
...-WEC, such as radiation susceptibility, conductance coefficients, and hydrodynamic efficiency, are addressed for diverse wave conditions and OWC geometry variations. INTRODUCTION Ocean wave energy is a ubiquitous resource in many regions/countries worldwide and is among the renewable energies...
Proceedings Papers
Wave Power Absorptions from a Floating Truncated Cylinder in Simultaneous Heave, Surge and Pitch Motions
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-136
... coefficients (namely added mass, damping and excitation forces) from the linear wave body boundary value problem. The theory of optimum wave power absorption by Evans (1980) readily provides the formula for power using these coefficients and we adopt this formulation to investigate power absorptions. In more...
Proceedings Papers
CFD Investigation of Princess Royal Propeller Cavitation: A Benchmark Study
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-142
... were conducted for different flow conditions based on the advanced coefficient and cavitation number. The equilibrium dissolved gas model (Ding et al., 2011) which accounts for both aeration and cavitation effects, was used to model the cavitation characteristics. The gas present in the fluid can...
Proceedings Papers
Numerical Investigation of Dynamic Responses in Deepsea Mining Vessel
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-157
... vessel hydrodynamic coefficient deployment dwt vessel heave diffraction response coefficient amplitude operator estimation dwt vessel heave time response equation motion response ship sea condition peak amplitude Proceedings of the Fifteenth (2024) ISOPE Pacific-Asia Offshore Mechanics...
Proceedings Papers
Research on Key Technologies for the Design of a New Generation of Large-Capacity CLV to Meet the Requirements of Deep-Sea Operations
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-170
... operation china offshore wind power calculation social responsibility requirement positioning capability sea state environmental load cable dynamic positioning capability coefficient inertial load clv carousel ship transmission wind direction Proceedings of the Fifteenth (2024) ISOPE...
Proceedings Papers
Oblique Wave Trapping in the Presence of Seawall Under the Influence of Ocean Current
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-171
... reflection coefficients, wave energy dissipation and the hydrodynamic forces are used to analyze different elements of structural configurations in oblique wave trapping. Proper combinations of the vertical partially reflecting seawall and porous structure can offer long-term, economically viable solutions...
Proceedings Papers
Forecasting Coastal Erosion Width During Storm Events: A Case Study of Vishakhapatnam Coast Using Analytical Method
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-185
... and advancing under the impact of storm waves, it becomes imperative to initially delineate the alterations in the beach profile prompted by the transverse movement of sediment. geology beach scale factor sediment transport knowledge management grain size equation coefficient geologist beach...
Proceedings Papers
CFD Analysis of Unsteady Cross-Flow over a Cylinder Using the k-ω SST Turbulence Model
Available to PurchaseS. Sruthy Raj, Ciya Varghese, Josna John, Manoj T. Issac, Beena Mary John, U. R. Harikrishnan, G. A. Surya Teja, T. Shakkir, Muhammed Sahid, P. K. Satheesh Babu, D. D. Ebenezer
Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-200
... and water. The coefficients of drag and lift, C D and C L , respectively are of primary interest. The time-averaged coefficient of drag, (equation), the rms value of (equation), C Drms , and the rms value of the coefficient of lift, C Lrms , are computed. It is shown that the values...
Proceedings Papers
CFD Analysis and Semi-Empirical Equation for the Drag of AUVs with Myring Profiles
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Paper presented at the The Fifteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 13–16, 2024
Paper Number: ISOPE-P-24-201
... semi-empirical equation for the coefficient of drag. The expression is independent of the shape and therefore not useful for optimizing the shape. In this paper, the drags of two families of AUVs are computed using the Siemens STAR-CCM+ package at zero Angle of Attack. Then, a semi-empirical equation...
Proceedings Papers
Wave Loads on the Large Vertical Cylinder with the Conformal Mapping and Series Expansion Method
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Paper presented at the The Fourteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, November 22–25, 2020
Paper Number: ISOPE-P-20-102
... be mapped to halfcircle to get wave loads. reservoir characterization mapping function plane application engineering conformal mapping coefficient wave load unit circular vertical cylinder boundary condition conformal transformation wave elevation upstream oil & gas cylinder bessel...
Proceedings Papers
Evaluation of Collision Force by Driftwood and Small Boats Due to Tsunami
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-011
... the measurements of similar experiments conducted in 2016 and 2015. calculation result tsunami formula small boat model adaptability solitary wave engineering center formula evaluation formula seawall coefficient upstream oil & gas driftwood flotsam collision force load cell 4 driftwood...
Proceedings Papers
Numerical Study of Evaporation Rate of Liquefied Natural Gas From a Cargo Tank While Transported by LNG Vessels
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-063
... transporting must keep this condition as least 21 days. There are several ways to provide a stable work of this system: liquefaction of steam combustion in a boiler or catalytic preheater, the use of steam as a fuel, a combination of these methods. foam glass coefficient tank gas monetization...
Proceedings Papers
Numerical Analysis of Wave Reflection by Perforated Caisson Breakwater
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-047
...) and k-ε turbulence model equations. The numerical results for the reflection coefficients of perforated caissons are in good agreement with the experimental data in literature, which means that the present numerical model can well estimate the hydrodynamic performance of complicated perforated thin...
Proceedings Papers
Improvement in Efficiency of Darrieus Turbine by Pitch Variation
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-039
..., it is found that the blades with pitch angle of 4 and 6 degrees give the highest torque, especially in a tip-speed ratio over 1. By changing the pitch angle of the blade from 0 to 6 degrees, the peak value of the power coefficients is improved by more than 30 percent. INTRODUCTION An ocean current...
Proceedings Papers
Numerical Investigations of Vortex-Induced Vibration of Two-Dimensional Circular Cylinder Experiencing Oscillatory Flow
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-007
... and the transverse street regime. Results of vortex evolution, flow regimes and hydrodynamic force coefficients are compared. INTRODUCTION In actual production, offshore floating structures subject to waves, currents or winds will cause the platform to move periodically in the water. Then relatively oscillatory...
Proceedings Papers
Design of FLBT Mooring System and Its Numerical Assessment
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-130
... in consideration of simultaneous loading and unloading by STS method. higher-order boundary element method coefficient numerical model roll motion subsea system assessment safety factor freight & logistics services environmental condition characteristic flbt return period turret model test...
Proceedings Papers
Experimental Investigation of the Interaction of Irregular Waves with a Side by Side Pile Group
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-103
... carried out. Considering the comprehensive influence of the relative pile diameter and KC 1/3 number, a new parameter KC LD 1/3 is proposed. The influence of relative spacing on the wave force of the pile group is analyzed. The change of pile group coefficient, inline force and resultant force...
Proceedings Papers
Study on Cutting Trajectory of the Anchor Chain in Clay
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Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-066
... ABSTRACT: In this paper, a new chain-soil interaction model is presented considering the open cavity depth and soil back-flow characteristic. The bearing capacity coefficient increases from 0 at the mudline to 10.5 over full backflow depth instead of 5.14 to 7.6 without considering the cavity...
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