Wave analysis based on genetic algorithms using data collected from laboratories at different scales

Núñez, Juan; Cruchaga, Marcela; Brockhaus, Gonzalo Tampier

doi:10.1016/j.euromechflu.2022.05.006

Cited by 4 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notice that at the current laboratory configuration, the wave amplitudes are limited by the height of the tank. Due to this fact, the evolution of stationary waves is not registered near or at natural frequency, because the waves exceed the height of the tank (a detailed study was made in Núñez et al , 2022). For this reason, there are no experimental results in those frequencies.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…In addition, the measurements obtained with the sensors are confirmed with data provided by the camera using as post process a motioncapturing technique for the interface. Information on the sensors and the verification procedures applied to their measurements can be found in previously reported work (Castillo, 2019;Núñez Aedo et al, 2020;Núñez et al, 2022;Battaglia, 2022). Considering these facts, the sensors were positioned 25 mm away from the tank walls, as shown in Figure 2(d).…”

Section: Problem Layoutmentioning

confidence: 99%

“…This list of works provides examples of simulations within different computational frameworks and the current interest in performing experimental validations using reduced scales. In Núñez et al (2022), a study at different laboratory scales evaluated the possibility of comparing waves between those generated in a hydraulic channel and during sloshing. That work opened the possibility of experimentally studying buoys subjected to sloshing as a preliminary stage for the design of systems such as those proposed in this work, where the effect on a buoy of fluid dynamics considering waves is specifically studied.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A numerical and experimental study of a buoy interacting with waves

Núñez Aedo,

Cruchaga,

Storti

2023

HFF

View full text Add to dashboard Cite

Purpose This paper aims to report the study of a fluid buoy system that includes wave effects, with particular emphasis on validating the numerical results with experimental data. Design/methodology/approach A fluid–solid coupled algorithm is proposed to describe the motion of a rigid buoy under the effects of waves. The Navier–Stokes equations are solved with the open-source finite volume package Code Saturne, in which a free-surface capture technique and equations of motion for the solid are implemented. An ad hoc experiment on a laboratory scale is built. A buoy is placed into a tank partially filled with water; the tank is mounted into a shake table and subjected to controlled motion that promotes waves. The experiment allows for recording the evolution of the free surface at the control points using the ultrasonic sensors and the movement of the buoy by tracking the markers by postprocessing the recorded videos. The numerical results are validated by comparison with the experimental data. Findings The implemented free-surface technique, developed within the framework of the finite-volume method, is validated. The best-obtained agreement is for small amplitudes compatible with the waves evolving under deep-water conditions. Second, the algorithm proposed to describe rigid-body motion, including wave analysis, is validated. The numerical body motion and wave pattern satisfactorily matched the experimental data. The complete 3D proposed model can realistically describe buoy motions under the effects of stationary waves. Originality/value The novel aspects of this study encompass the implementation of a fluid–structure interaction strategy to describe rigid-body motion, including wave effects in a finite-volume context, and the reported free-surface and buoy position measurements from experiments. To the best of the authors’ knowledge, the numerical strategy, the validation of the computed results and the experimental data are all original contributions of this work.

show abstract

Section: Experimental Methodsmentioning

confidence: 99%