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Keywords: roughness
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Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-411
... analyze the interaction between pluvial flooding and fluvial flooding in urban region during the typhoon, and the effect of the spatial heterogeneity of the roughness arising from different land uses in the city. The main conclusions can provide useful guidelines and insights on dealing with the possible...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-376
...Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-81-4; ISSN 1098-6189 www.isope.org Assessment of the roughness effect...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-2119
... of the contact length of the steel tube-core concrete interface and the surface roughness of the steel tube on the ultimate bond strength. Roeder et al. (1999) summarized the previous research results and carried out the push-out test of 20 specimens. In the study, the influence of concrete shrinkage...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-632
... roughness increases with prolonged service wear and marine growth. The current work looks to consider surface roughness effects using 3-d CFD simulations. The new design still shows low drag and effective VIV suppression performance up to a higher level of surface roughness, which makes it suitable for long...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-670
... CFD Sensitivity Studies of Turbulent Model, Grid, Roughness and Scale Effect for Full Scale Ship Performance Estimation Seong-Wook Jeong*, Seung-Gyu Jeong, Sung-Gu Park, Young-Doo Kim Busan Technical Support Office, Lloyd s Register Asia Busan, Republic of Korea Suak Ho Van, Kwang Soo Kim Future...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-623
... to the modification of the logarithmic wind profile by the effect of sea spray droplets produced by bursting bubbles or wind tearing breaking wave crests. The drag coefficients and sea surface aerodynamic roughnesses reach their maximum values vary under different wave developments. INTRODUCTION The primary...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-267
... ABSTRACT Effects of surface roughness and fouling on ship resistance are analyzed by numerical simulation, the fouling covered on hull are graded through the visual inspection, three different hull surface conditions are divided corresponding to three models used to simulate by FLUENT software...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-636
... ABSTRACT The main purpose of this study is to investigate the characteristics of wave force reduction by the coastal dike and the bottom roughness through hydraulic model experiments applying Froude similarity's law with the scale of 1 to 100. It was clarified that tsunami wave force...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-658
... as the important aspect of correctly specifying bed material availability (Mead, 1999). trench migration rate ripple height bed roughness trench infill sediment migration rate trench infill numerical model test 6 dimension artificial intelligence grain roughness flow facility test 5 test 2...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-512
... aspect ratio and surface roughness on resistance factor are explored extensively. A new interpretation formula of the T-bar resistance factor is proposed as a function of the T-bar aspect ratio and roughness. INTRODUCTION The recent exploration of hydrocarbon fields in deep water has placed more...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-547
... ABSTRACT In this study, we conducted the experimental and numerical studies for evaluation of production well integrity during gas recovery process from Methane Hydrate reservoir by depressurization. The effects of the irregularity and the roughness at the surface of screen constituting well...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-868
... with that of previous study. coefficient weathered granite soil experimental study engineering roughness material specimen shear strength specimen pile foundation bearing capacity freezing chamber strength prediction scanner fractal dimension adfreeze bond strength Experimental Study...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-706
... Abstract Experiments on the Vortex-Induced Motions (VIM) acting on deep-draft Semi-Submersible (SS) platforms were carried out in a towing tank in order to investigate the roughness effects on the surface of two different 1:100-scale models. Both models were built based on the typical SS...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-115
... line upstream oil & gas wear rate topography fatigue failure tiffener luciano valdomiro ew ailure riterion polyurethane asperity metallic insert subsea system polymeric part stiffener surface roughness roughness asperity angle Proposed ew ailure riterion for ending tiffeners...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-233
... loss of life and properties. simulation vulnerability hazard rescue facility total population sobek earthquake new taipei city trench taiwan vil vulnerable population coastline roughness weighting tsunami philippine plate water depth overland module venerability Tsunami...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-124
... development wave energy converter vertical wall piezoelectric material sustainability electric power tanaka external force mutsuda roughness ocean energy reef electric performance :DYH (QHUJRQYHUWHU 8VLQJ D &RPSUHVVHG 7\SH RI )OH[LEOH 3LH]RHOHFWULF 'HYLFH Hidemi MXWVXGD, Motoki OWDNH, Kenichi...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-125
... boldd black line fatigue damage reynolds number det norske veritas experiment modification factor excitation coefficient curve cylinder response amplitude excitationnote gopalkrishnan ocean engineering vivana engineering roughness coefficient excitation coefficient upstream oil...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-578
... in the ambient temperature, the impact on the capacity is found to be between 0.1 and 0.5 %. midstream oil & gas operational data production control upstream oil & gas roughness heat storage heat transfer model simulation reservoir surveillance burial depth ambient temperature outlet...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-190
... values in accordance with Froude scaling law. The test results suggest that the cylinder fitted with sacrificial anodes and the one wrapped with rough surface have shown an overall increase in drag and inertia coefficients. hydrodynamic force sacrificial anode chakrabarti upstream oil & gas...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-283
... reservoir surveillance production logging deposition thickness roughness two-phase flow model oil production production control deposition A Simulation Study of Wax Deposition in Subsea Oil Production System Sun-Young Jung, Dong-Gun Lee and Jong-Se Lim Department of Energy and Resources...

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