Results 1 to 10 of about 20,239 (157)

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

Mathematics, 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, Xavier Antoine, Chokri Chniti   +2 more
doaj   +3 more sources

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

Физика 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

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

Numerical 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, Hamid Heidary-Torkamani, Longbin Tao, Behzad Ghiasi   +3 more
doaj   +1 more source

Hydrodynamics of a Moored Permeable Vertical Cylindrical Body

Journal 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, Ioannis K. Chatjigeorgiou, Spyros A. Mavrakos   +2 more
doaj   +1 more source

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

Journal 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, Spyridon A. Mavrakos   +1 more
doaj   +1 more source

Theoretical Hydrodynamic Analysis of a Surface-Piercing Porous Cylindrical Body

Fluids, 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, Ioannis K. Chatjigeorgiou, Spyridon A. Mavrakos   +2 more
doaj   +1 more source

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

Photonics, 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

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

Journal 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, Maxim Candries, Evert Lataire, Zaojian Zou   +3 more
doaj   +1 more source

Water layer and radiation damage effects on the orientation recovery of proteins in single-particle imaging at an X-ray free-electron laser

Scientific Reports, 2023
The noise caused by sample heterogeneity (including sample solvent) has been identified as one of the determinant factors for a successful X-ray single-particle imaging experiment.
Juncheng E, Michal Stransky, Zhou Shen, Zoltan Jurek, Carsten Fortmann-Grote, Richard Bean, Robin Santra, Beata Ziaja, Adrian P. Mancuso   +8 more
doaj   +1 more source

Effect of Internal Fluid Resonance on the Performance of a Floating OWC Device

한국해양공학회지, 2021
In the present study, the performance of a floating oscillating water column (OWC) device has been studied in regular waves. The OWC model has the shape of a hollow cylinder.
Il Hyoung Cho
doaj   +1 more source