Results 1 to 10 of about 134,623 (189)

A Coupling between Integral Equations and On-Surface Radiation Conditions for Diffraction Problems by Non Convex Scatterers [PDF]

open access: yesMathematics, 2021
The aim of this paper is to introduce an orignal coupling procedure between surface integral equation formulations and on-surface radiation condition (OSRC) methods for solving two-dimensional scattering problems for non convex structures.
Saleh Mousa Alzahrani   +2 more
doaj   +5 more sources

Diffraction and Radiation of Water Waves by a Heaving Absorber in Front of a Bottom-Mounted, V-shaped Breakwater of Infinite Length

open access: yesJournal of Marine Science and Engineering, 2021
In the present study, the problems of diffraction and radiation of water waves by a cylindrical heaving wave energy converter (WEC) placed in front of a reflecting V-shaped vertical breakwater are formulated.
Dimitrios N. Konispoliatis   +1 more
doaj   +3 more sources

Solving problems of radiation and diffraction electromagnetic waves based on integral representations electromagnetic field

open access: yesФизика волновых процессов и радиотехнические системы, 2020
Various forms of integral representations of the electromagnetic field are considered. It is shown that the use of analytically developed integral representations of the electromagnetic field instead of the vector potential method makes it possible to ...
Dmitry P. Tabakov, Sergey V. Morozov
doaj   +3 more sources

Two-dimensional wave radiation and diffraction problems in a flat or sloping seabed environment [PDF]

open access: yesJournal of Fluids and Structures, 2017
Abstract Two-dimensional water wave problems are investigated in an environment with a flat or sloping rigid seabed adopting a continuous Rankine source method. All the fluid domain surfaces, that is the free, body and seabed surfaces, are discretized using continuous panels.
Aichun Feng, Wei Bai
exaly   +3 more sources

Solving Wave Interaction with a Floating Breakwater in Finite Water Depth Using Scaled Boundary FEM [PDF]

open access: yesNumerical Methods in Civil Engineering, 2021
This study aims to develop an efficient and accurate analytical-numerical model to analyze full interaction between seawater waves and cylindrical floating breakwaters in an infinite fluid domain of finite arbitrary water depth.
Meisam Qorbani Fouladi   +3 more
doaj   +1 more source

Hydrodynamics of a Moored Permeable Vertical Cylindrical Body

open access: yesJournal of Marine Science and Engineering, 2022
In this study, the problems of diffraction and radiation of water waves by a permeable vertical cylindrical body are formulated within the realm of the linear potential theory.
Dimitrios N. Konispoliatis   +2 more
doaj   +1 more source

Theoretical Hydrodynamic Analysis of a Surface-Piercing Porous Cylindrical Body

open access: yesFluids, 2021
In the present study, the diffraction and the radiation problems of water waves by a surface-piercing porous cylindrical body are considered. The idea conceived is based on the capability of porous structures to dissipate the wave energy and to minimize ...
Dimitrios N. Konispoliatis   +2 more
doaj   +1 more source

Properties of Holographic Elements Based on Periodic Structures in a Wide Range of Angles of Incidence

open access: yesPhotonics, 2021
An experimental study is carried out on the diffraction and angular selectivity properties of gratings for a wide range of angles of incidence in three-dimensional space.
Nadezhda Vorzobova, Pavel Sokolov
doaj   +1 more source

An extension of the physical theory of diffraction concept for aperture radiation problems [PDF]

open access: yesRadio Science, 1994
A correction to the Kirchhoff‐Huygens approximation in the format of a diffraction coefficient is derived for an aperture terminated by a half plane. As in the physical theory of diffraction (PTD), this is achieved by considering the end point contribution to the aperture integral.
Altıntaş, A.   +2 more
openaire   +2 more sources

Numerical Study on Hydrodynamics of Ships with Forward Speed Based on Nonlinear Steady Wave

open access: yesJournal of Marine Science and Engineering, 2020
In this paper, an improved potential flow model is proposed for the hydrodynamic analysis of ships advancing in waves. A desingularized Rankine panel method, which has been improved with the added effect of nonlinear steady wave-making (NSWM) flow in ...
Tianlong Mei   +3 more
doaj   +1 more source

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