Results 61 to 70 of about 404,456 (371)

Analysis of Different Methods for Wave Generation and Absorption in a CFD-Based Numerical Wave Tank

Journal of Marine Science and Engineering, 2018
In this paper, the performance of different wave generation and absorption methods in computational fluid dynamics (CFD)-based numerical wave tanks (NWTs) is analyzed.
A. Miquel, A. Kamath, Mayilvahanan Alagan Chella, R. Archetti, H. Bihs   +4 more
semanticscholar   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source

Simplified formulas of heave added mass coefficients at high frequency for various two-dimensional bodies in a finite water depth

International Journal of Naval Architecture and Ocean Engineering, 2015
The aim of this study is to develop a simplified formula for added mass coefficients of a two-dimensional floating body moving vertically in a finite water depth.
Weoncheol Koo, Jun-Dong Kim
doaj   +1 more source

Analysis of Floating Offshore Wind Platform Hydrodynamics Using Underwater SPIV: A Review

Energies, 2022
There is a need for new numerical tools to capture the physics of floating offshore wind turbines (FOWTs) more accurately to refine engineering designs and reduce costs.
Navid Belvasi, Frances Judge, Jimmy Murphy, Cian Desmond   +3 more
doaj   +1 more source

Nonlinear Modeling and Verification of a Heaving Point Absorber for Wave Energy Conversion [PDF]

, 2017
Although the heaving Point Absorber (PA) concept is well known in wave energy conversion research, few studies focus on appropriate modelling of non-linear fluid viscous and mechanical friction dynamics.
Gilbert, James, Guo, Bingyong, Jin, Siya, Parsons, Dan, Patton, Ron   +4 more
core   +1 more source

On the relaxation approach for wave absorption in numerical wave tanks

Ocean Engineering, 2019
Abstract In CFD modelling, relaxation methods are widely used in numerical wave tanks (NWTs) for wave absorption; however, this method can be very expensive as part of the NWT must be dedicated to a relaxation zone. In this short technical note, a parametric study on the effects of the relaxation approach on absorbing different types of waves is ...
Chen, Qiang, Kelly, David M, Zang, Jun
openaire   +2 more sources

Investigation of Focusing Wave Properties in a Numerical Wave Tank with a Fully Nonlinear Potential Flow Model

Journal of Marine Science and Engineering, 2019
Nonlinear wave interactions and superpositions among the different wave components and wave groups in a random sea sometimes produce rogue waves with extremely large wave heights that appear unexpectedly.
Weizhi Wang, A. Kamath, Csaba Pákozdi, H. Bihs   +3 more
semanticscholar   +1 more source

Exploring the Potential of Zero‐Dimensional Carbon Nanomaterials in Photoluminescent, Electrochemiluminescent and Electrochemical Sensors

Advanced Materials Interfaces, EarlyView.
Zero‐dimensional carbon nanomaterials are presented as multifunctional platforms linking structure, property, and sensing performance. Surface engineering and heteroatom doping modulate electron‐transfer and luminescent behavior, enabling electrochemical, photoluminescent, and electrochemiluminescent detection. Fundamental design principles, analytical
Gustavo Martins, Jeferson Luiz Gogola, Ava Gevaerd, Cristiane Kalinke, Paulo Roberto de Oliveira, Fabio Roberto Caetano, Bruno Campos Janegitz, Márcio Fernando Bergamini, Luiz Humberto Marcolino‐Junior   +8 more
wiley   +1 more source

Shock Initiation of a Satellite Tank under Debris Hypervelocity Impact

Applied Sciences, 2019
For the risk assessment of a satellite to determine whether the satellite tank explodes under the hypervelocity impact, the Walker−Wasley criterion is selected to predict the shock initiation of the satellite tank.
Beilei Zhao, Jiguang Zhao, Cunyan Cui, Yan Wang   +3 more
doaj   +1 more source

Hybrid Magnetoactive Soft Elastomers: Material Development Toward Application in Diaphragm Pumps

Advanced Materials Technologies, EarlyView.
Hybrid magnetoactive soft elastomeric membranes are developed by combining two different types of magnetic particles. The membranes exhibit distinct mechanical, magnetic and thermal properties owing to the unique characteristics of the two magnetic particles.
Somashree Mondal, Paweł Orkisz, Bogdan Sapiński, Ralph Spolenak, Frank Clemens   +4 more
wiley   +1 more source