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Keywords: diffraction
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Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-619
... transformation society diffraction journal ABSTRACT Though the majority of large-scale hydrogen storage tanks are made of metastable austenitic stainless steel in the world, its fracture properties remain unknown. Because the materials are under a complicated environment, exposed to hydrogen...
Proceedings Papers

Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-111
... ABSTRACT The present paper deals with the calculation of the second-order oscillating forces of a vertical cylindrical heaving device fixed in the wave impact at a finite water depth. A semi-analytical formulation is presented for the solution of the first-order diffraction problem using...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-054
... to lower-fidelity engineering numerical models that can predict high-frequency wave loads with a sufficient degree of accuracy is important for the deployment of TLP technologies. While frequency domain BEM (Boundary Element Method) solvers can be used to calculate second-order diffraction forces (via...
Proceedings Papers

Paper presented at the The 31st International Ocean and Polar Engineering Conference, June 20–25, 2021
Paper Number: ISOPE-I-21-3150
... Abstract Wave diffraction is a fundamental problem in wave theory. At present, a lot of researches have been conducted on the diffraction of the relatively simple port arrangements such as a single jetty, a double jetties, and an island embankment. However, the planar arrangement of many...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-220
... for fishing and tourism. Thus, the wave behavior inside and outside the lagoon is worthwhile to study. Generally speaking, due to the sheltering of island and reef flat, diffraction plays the most important role when waves enter the lagoon. Wave diffraction has been widely studied in recent decades(Abohadima...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-474
... ABSTRACT In the present paper, the analytical solutions are derived for diffraction of normal incident water waves by the gap between two rigid and long breakwaters with asymmetrical configuration. According to the analytical solution for diffracted waves around a semi-infinitely long...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-451
... ABSTRACT This paper employs computational tools to investigate the diffraction effects in regular head waves on the added resistance and wake on the propeller plane. The objective ship is a 66,000 DWT bulk carrier. Fixed and free to heave and pitch conditions at design speed have been taken...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-022
... domain orcaflex software shallow water calculation characteristic diffraction breakwater engineering frequency software anchor chain reservoir simulation water depth mooring system upstream oil & gas wave height motion response Numerical Simulation of Mooring System of Floating...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-589
... regular wave nonlinear wave propagation surface elevation nonlinear approach reservoir characterization solitary wave propagation boundary condition upstream oil & gas runup diffraction free surface elevation computational domain wave propagation reservoir simulation dispersive...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-655
... and λ is the wave length), wave diffraction is important and should be considered. A superposition eigenfunction expansion method was used by MacCamy and Fuchs (1954) to obtain a linear solution, based on the assumption that the incident wave has a small steepness. For the case of waves acting upon...
Proceedings Papers

Paper presented at the The 27th International Ocean and Polar Engineering Conference, June 25–30, 2017
Paper Number: ISOPE-I-17-628
.... rankine panel method short wave experimental study ship experiment relative wave diffraction simulation resistance upstream oil & gas midstream oil & gas gas monetization equation wave length incident wave lng relative indicent wave freight & logistics services lng carrier...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-152
... diffraction upstream oil & gas engineering reservoir characterization mtf method cylinder wave-body interaction duan wave velocity diffraction boundary condition zhang Numerical Investigation of Wave-Body Interaction Based on Desingularized Boundary Integral Equation Method Gang XU School...
Proceedings Papers

Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, June 21–26, 2015
Paper Number: ISOPE-I-15-646
... Abstract Infragravity waves observed inside a harbor may consist of free waves not only propagated from offshore but also generated (released) at harbor entrance due to reduction of wave groups by diffraction and breaking. In this study, numerical simulations of both wind and infragravity wave...
Proceedings Papers

Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-451
... will be shown; experimental data from Deltares are available to quantify the simulations. Accurate wave simulations can play an important role in the design of the lay-out of harbours. boundary condition coefficient wave disturbance harbour diffraction vbm limassol equation significant wave...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-597
... ABSTRACT Residual stresses are suspected to affect fatigue strength of welded joints under cyclic loading. For the assessment of the influence of residual stresses, the residual stress states must be known. Whereas surface residual stresses can be determined by means of X-ray diffraction...
Proceedings Papers

Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-459
... ABSTRACT Elliptic mild slope equation based models are widely used to compute wavefields in regions of complex, arbitrarily varying topography and geometry. They are used in applications involving wave reflection, diffraction, refraction, nearshore breaking and frictional dissipation. However...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-162
... Study on Wave Diffraction from a 3D Box in a Two-layer Fluid by Time-domain Approach Ying Gou1, Xinjia Chen1, Bin Teng1 and Yanna Zheng2 1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology Dalian, Liaoning, China 2. Department of Port Route and Coastal...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-403
... ABSTRACT: An efficient fully nonlinear diffraction model has been developed based on a time-domain higher-order boundary element method (HOBEM). An explicit description of incident waves is exploited to solve a modified problem for diffracted flow only. On the instantaneous free surface...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-423
... runup heights by the multi-conical islands. It is found that the nonlinear wave diffraction, reflection and refraction play a significant role in varying the maximum soliton runup heights on multi- conical islands. The comparatively large maximum soliton runups are generally predicted for the merged...
Proceedings Papers

Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-531
... ABSTRACT This paper describes the derivation and implementation of combined wave diffraction-refraction in a spectral directional wave model for coastal applications. The wave refraction is included in the total derivative of wave-action while diffraction is formulated as wave energy diffusion...

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