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Keywords: geometry
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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-23-132
... ABSTRACT In this study, preliminary results from scaled model tests (1:45) in a 3D-wave-current-basin are presented. A 4-legged jacket model has been subjected to waves, current and combined boundary conditions. The influence of the jacket geometry on resulting flow patterns is analyzed...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-101
... with three degrees of freedom (surge, pitch and heave) is considered herewith. The optimization parameters are selected using B-spline surfaces to describe the float geometry in the form of a matrix of control points. Multiple strategies with different heuristic algorithms and objective functions...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-112
... optimization problem sustainable development deployment location wpaf requirement geometry offshore aquaculture farm pen diameter ABSTRACT In this paper, we present the conceptual design of a wave-powered aquaculture farm (WPAF), in which a wave energy converter (WEC) is co-located with a salmon...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-099
... geometry navier-stoke equation expansion grid vorticity pitch distribution wake model accuracy tsr calcagni project danilo calcagni ABSTRACT The present work deals with the assessment of variable fidelity simulation models to analyze the complex phenomenology of a turbine operating...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-155
... geometry ABSTRACT Steel sections are generally used in offshore topside, while the recent development focused on expanding the need for production, living, and storage capacity. As a result, a cluster of water mains, fire hydrants, sewage lines, power cables, and telecommunication wires, storage...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-547
... ABSTRACT This paper investigates the performance of unconventional tip rake propellers. The study discusses a decoupled design procedure of the tip rake from the conventional propeller. The raked tip is governed by a set of parameters which enables geometry around the tip to be controlled...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-381
... this, the inherently high specific energy density (nearly three times that of traditional aviation fuel) makes LH2 a natural alternative fuel. LH2 is a cryogenic fluid, cryogenic fuel tanks typically have a similar shape to that of any common pressure vessel, where curved geometries are utilised to remove high stress...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-161
... geometry ovality ABSTRACT In this paper a numerical model is proposed for Mechanically Lined pipe (MLP). LASER based scanning techniques were used to capture local straining of the liner and Digital Imaging Correlation (DIC) of the backing steel outer during simulated reeling trials. This included...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-267
... target strength. Firstly, several characteristic parameters are chosen to define the geometry of sail and hull under some design constraints, and a series of realistic design schemes for underwater vehicle will be generated during the optimization by changing the value of the parameters. Secondly...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-520
... as simulation-based design, i.e. SBD, which consists of three components, namely, geometry expression of the ship hull, performance prediction by simulation, and searching strategy for the hull form with optimal performance. Simulation based design in seeking for optimal hull form with reduced resistance...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-583
.... In their research, the vortex induced by the separation along the corner of the side wall of inlet was also clearly shown. The flow inside the inlet duct is dominated by its own geometry. Further, the geometry of the inlet duct also affects the flow field around aft-hull, as well as the pump ingestion condition...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-555
... deformation hydrodynamic performance time step geometry propeller interaction fluid-structure interaction fsi marine propeller simulation mesh characteristic upstream oil & gas numerical investigation equation two-way fsi structural response blade deformation hydrodynamic...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-573
... ABSTRACT The trailing suction hopper dredger(TSHD) completes the sediment loading by the hopper system. The loading efficiency of the hopper system is affected by the hopper geometry. The geometry of hopper should be optimized according to the loading and deposition process in hopper, so...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-040
... ABSTRACT Computational Fluid Dynamics (CFD) simulations with fully resolved turbine geometries are increasingly popular for wind turbine aerodynamic analysis. However, the results obtained from the CFD simulations are sensitive to many numerical settings, such as grid spacing, time increment...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-058
... ABSTRACT Computational Fluid Dynamics (CFD) tools are now widely used in the aerodynamic analysis of wind turbines. To simulate the turbine different modelling techniques are available with different levels of complexity and accuracy. In CFD simulations with fully resolved rotor geometries...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-067
... reached 40000km (Webb, Simonetti, & Jones, 2001). sustainability passenger transportation thermal buoyancy engine pcm air transportation sustainable development engine bemt hydrodynamic performance geometry turbine buoyancy engine underwater glider coefficient thermal energy...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-306
... dawson wave resistance theoretical result model iii coefficient slender body geometry submarine free surface spheroid trim angle kozin formula ice cover submergence depth lift force magnitude length-to-diameter ratio ABSTRACT The article touches upon an unsteady...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-326
... imaging we show how incoming liquid deforms the air bubble enclosed in such a geometry, and how an impact peak is registered inside the bubble, which can be traced back to the impact of a liquid jet onto the pressure sensor. We compare the measured pressures to a Bagnold model, and discuss the dominant...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-302
... of 2.15, the leading-edge tubercles are represented by sinusoidal leading-edge geometries with an amplitude 0.005 times the local hydrofoil chord length. Three wing geometries with tip to hub ratio of 0.33, 0.6 and 1 were designed and built. Each wing can be attached with straight leading edge and leading...

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