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Damir Cavka,Dragan Poljak,Andres Peratta
Pág. 22 - 28
Boundary and finite element modeling approach to the assessment of electrostatic field on human head generated by Video Display Units (VDU?s) are compared and discussed. Attention is focused to the field distribution over the surface of the face. The mat...
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Dimitrios T. Kalovelonis, Dimitrios C. Rodopoulos, Theodoros V. Gortsas, Demosthenes Polyzos and Stephanos V. Tsinopoulos
In the present work, an impressed current cathodic protection (ICCP) system for the protection against corrosion of a 399-m-length container ship throughout its service life is designed. The study is carried out with the aid of a boundary element method ...
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Llewellyn Morse, Vincenzo Mallardo, Zahra Sharif-Khodaei and Ferri M.H. Aliabadi
A novel methodology is presented for performing sensitivity analyses of assembled plate structures using the Boundary Element Method (BEM). The main novelty of this work is that the exact implicit derivatives of the BEM formulations for assembled plate s...
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Pieter Maljaars, Laurette Bronswijk, Jaap Windt, Nicola Grasso and Mirek Kaminski
In the past several decades, many papers have been published on fluid?structure coupled calculations to analyse the hydro-elastic response of flexible (composite) propellers. The flow is usually modelled either by the Navier?Stokes equations or as a pote...
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Pieter Maljaars, Laurette Bronswijk, Jaap Windt, Nicola Grasso and Mirek Kaminski
In the past several decades, many papers have been published on fluid–structure coupled calculations to analyse the hydro-elastic response of flexible (composite) propellers. The flow is usually modelled either by the Navier–Stokes equations ...
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Felipe Vannucchi de Camargo
The ability of predicting material failure is essential for adequate structural dimensioning in every mechanical design. For ships, and particularly for military vessels, the challenge of optimizing the toughness-to-weight ratio at the highest possible v...
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Yui-Chuin Shiah, Po-Wen Hwang, Mohammad-Rahim Hematiyan and Nguyen Anh Tuan
In aerospace applications, surface coatings have been widely applied for variouspurposes. One typical example is the use of thermal barrier coating (TBC) applied on anisotropic substrate for enhancing the heat resistance of the substrate under severe ope...
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Ruotong Peng, Tong Zheng, Xing Lu, Xianze Xu and Fengqiu Xu
The existing simulation method for the control of linear or planar magnetically levitated actuators always ignores the characteristics of the real physical object, which deteriorates the accuracy of the simulation. In this work, the proposed emulator for...
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Yu-Hsien Lin, Shin-Hung Kao and Cheng-Hao Yang
This study aims to develop a modularized simulation system to estimate dynamic responses of floating Offshore Wind Turbines (OWTs) based on the concepts of spar buoy and Tension Leg Platform (TLP) corresponding with two typical mooring lines. The modular...
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Lei Zhang, Jia-Ning Zhang and Yu-Chen Shang
A hybrid method?coupled with the boundary element method (BEM) for wave-making resistance, the empirical method (EM) for viscous resistance, and the boundary layer theory (BLT) for capture of an area?s physical parameters?was proposed to predict waterjet...
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David Hally
A method to replace a propeller by force and mass rate density fields has been developed. The force of the propeller on the flow is calculated using a boundary element method (BEM) program and used to generate the force and mass rate fields in a Reynolds...
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Md Mashud Karim, K Suzuki, H Kai
Pág. 47 - 61
This paper presents results from the application of the genetic algorithm (GA) technique to the design optimization of hydrofoil and marine propeller incorporating potential based boundary element method (BEM). Although, larger population size as impleme...
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Stan Proskurov, Markus Lummer, Jan Werner Delfs, Roland Ewert, Jochen Kirz, Martin Plohr and Robert Jaron
Overcoming the problem of excessive engine noise at low altitudes is a formidable task on the way to developing a supersonic passenger aircraft. The focus of this paper is on the fan noise shielding during take-off, investigated as part of the DLR projec...
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Yao Liu, Yong-Hwan Cho, Norimi Mizutani and Tomoaki Nakamura
This paper studied the resonant behaviors of a bottom-hinged oscillating wave surge converter (OWSC) as well as the relationship of resonance with the response and capture width ratio (CWR). The time-domain dynamic equation of an OWSC in shallow water ba...
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Alexandros Magkouris, Kostas Belibassakis and Eugen Rusu
In this paper, a novel model based on the boundary element method (BEM) is presented for the hydrodynamic analysis of floating twin-hull structures carrying photovoltaic panels, supporting the study of wave responses and their effects on power performanc...
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Andrés Guggeri and Martín Draper
As the size of wind turbines increases and their hub heights become higher, which partially explains the vertiginous increase of wind power worldwide in the last decade, the interaction of wind turbines with the atmospheric boundary layer (ABL) and betwe...
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Panagiotis E. Koutsogiannakis, Evangelos S. Filippas and Kostas A. Belibassakis
A biomimetic semi-activated oscillating-foil device with multiple foils in a parallel configuration is studied for the extraction of marine renewable energy. For the present investigation, an unsteady boundary element method (BEM) is used for the simulat...
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Kostas Belibassakis, Evangelos Filippas and George Papadakis
Flapping-foil thrusters arranged at the bow of the ship are examined for the exploitation of energy from wave motions by direct conversion to useful propulsive power, offering at the same time dynamic stability and reduction of added wave resistance. In ...
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Kostas Belibassakis, John Prospathopoulos and Iro Malefaki
Flapping-foil thrusters are systems that operate at a substantially lower frequency compared with marine propellers and are characterized by a much smaller power concentration. These biomimetic devices are able to operate very efficiently, offering desir...
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Xiaobin Qu and Yingxue Yao
Floating foundations play a vital role in exploring offshore energy. After analyzing various floating foundation concepts, this paper presents a novel buoyancy-distributed floating foundation (BDFF) inspired by the decentralized concept. The calculations...
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