... europe government corpower buoy wave interaction different time instant sub-sea system qalefoam simulation ocean eng ns model mooring system ocean energy wave energy converter absorber equation buoy interaction motion response numerical result coupling ABSTRACT...

... axisymmetric eigenfunction expansion formulations. The WECs under examination are the heaving absorber and the oscillating water column device. From the present analysis it is demonstrated that the absorbed wave power by the examined WECs in front of a vertical wall is strongly affected by the geometrical...

... cylinder engineering qalefoam nonslip exp numerical simulation qalefoam nonslip qalefoam nonslip exp interaction reservoir simulation time history qalefoam absorber qalefoam slip qalefoam slip 10 international journal wave elevation transitional zone mesh size ABSTRACT...

... ABSTRACT The paper presents an improved passive wave absorber for numerically modelling extremely wave. The development is driven by the challenge on effectively absorbing the undesirable wave, especially the waves with large wavelength, in the numerical wave tanks (NWTs). The developed...

... development international ocean absorber platform energy absorber domain analysis The influence of wave energy absorber sizes on the response of a floating hybrid wind-wave system Jiyuan Men, Fasuo Yan, Qingwei Ma, Hongbin Hao Deepwater Engineering Research Center, Harbin Engineering University...

...+ 0.29 IC4 0.05 H2O 0.14 PRINCIPLE FOR SOLVENT ABSORPTION PROCESS The feed gas flows into the bottom of the absorber, and flows contrarily with the sprayed liquid of CO2 absorption solvent from top of the absorber by contacting thoroughly with each other. During the process, large amount of CO2...

... Abstract We simulated coastal waves and wave absorbers in a lab-scale wave flume. The goal of this study was to observe and optimize a typical ocean environment and to reduce the wall reflection in the wave flume. In order to generate ocean waves in the wave flume, a combination of a flat-type...

... pressures were got. horizontal plate 5-stoke wave fluid viscidity negative pressure 2-stoke wave 5-stoke wave measuring point viscidity wave height absorber wang yong-xue wave period theoretical value proceedings pressure peak relative air gap numerical result Applied Research...

... Abstract In this paper, results from comparisons of simulations and measured offshore data from a floating combined wind and wave energy conversion system are presented. The device is a downscaled prototype that consists of a floating platform equipped with ten wave energy absorbers and three...

... ABSTRACT In order to promote and support the wave energy industry, a Wave Energy Converter (WEC) design tool has been developed for modeling point absorber WECs with arbitrary device geometry. The design tool provides a numerical modeling structure and methodology capable of modeling...

... ABSTRACT: This paper presents a preliminary study on a two-body floating-point wave absorber. For this study, a Reynolds-Averaged Navier-Stokes (RANS) computational method was applied for analyzing the hydrodynamic heave response of the absorber in operational wave conditions. The two-body...

... ABSTRACT: Wave-energy point absorbers can be described as linear, under-damped oscillating systems excited by ocean waves. These devices are intended to be installed offshore and operated in a variety of wave conditions, with a view to producing energy from the oscillations they undergo...

... for the vibration dynamic dampers (hereinafter referred to as dampers) and absorbers as well as for calculation of high-rise structures equipped with these dampers. The constructive design of damper providing vibration damping of structures with a frequency of natural vibrations of less than 0.3 Hz is considered...

... ABSTRACT In order to obtain the optimal condition for designing a vibration absorber used in calm water, a two-degree-of-freedom system composed of a main vibrating-system and a vibration absorber in the water has been considered. Then, the system has been assumed to vibrate vertically due...

... if the resonance bandwidth is narrow. Wave-energy converters (WECs) of large horizontal extension, socalled "terminators" and "attenuators", have rather broad bandwidths, whereas "point absorbers", for which the extension is very small compared to the predominant wavelength, have rather narrow bandwidth...

... ABSTRACT An absorbing boundary condition for time-domain Numerical Wave Tanks is developed from a previous study related to active physical absorbers for wave basin. The starting point is the same: the optimal (ideal) time domain absorption condition for a moving piston expressed...

... behavior artificial intelligence batista federal university active passive control control device response amplitude absorber offshore structure reduction mass ratio passive control heave motion active control equation dynamic response displacement subsea system tlp rio de janeiro rio de...

... The paper presents recent progress in the control of active wave absorbers. A simple theoretical model of an ideal piston wave absorber is derived in the framework of 2D linearized potential theory. Due to a lack of causality, this optimal device cannot be physically realized in the time-domain...

... In order to obtain the optimum condition for designing a vibration absorber used in water, a two-degree-of-freedom system composed of a main vibrating-system and a vibration absorber in water has been considered as a first step. Then, the system has been assumed to vibrate vertically due...

... ABSTRACT A numerical wave flume is simulated using a Boundary Element Method (BEM) model combined with a time stepping procedure. The boundary conditions in the BEM are similar to those in a physical wave flume, e.g. with a wavemaker at one end boundary and an absorbing condition at the other...