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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.

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.

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.

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.

This paper aims to investigate the distinctive economic and social dynamics of ethnic quasi-enclave industrial sub-clusters and to econometrically analyse the main factors affecting the economic performance of Chinese-migrant microentrepreneurs with a specific focus on social capital.

An interpretative framework that encompasses sustainable local human development and mixed embeddedness is applied to a case study of Wenzhounese migrant socioeconomic quasi-enclave leather industrial sub-clusters located adjacent to the industrial district area of Florence, Italy. Given the complexity of the phenomenon, the research study adopted a mixed-method approach encompassing both qualitative and quantitative methods. The econometric analysis was based on data collected via a survey administered to a random sample of enterprises.

Ethnic social capital plays a central role in ethnic entrepreneurship. The results confirm the relevance of social networks in the context analysed and reveal the importance of ethnic and non-ethnic business social capital as one of the main factors affecting enterprise’s economic performance.

The findings propose potential policies to upgrade the ethnic enterprises especially in terms of increasing their formality and inclusion in the Italian social and economic systems of production.

This analysis contributes to existing literature on migrant entrepreneurship and communities, adding new evidence related to ethnic enterprises and the importance of social capital in terms of performance and working conditions of the community of entrepreneurs.

The present work is an experimental and numerical study of a sloshing problem including baffle effects. The purpose of this paper is to assess the numerical behavior of a Lagrangian technique to track free surface flows by comparison with experiments, to report experimental data for sloshing at different conditions and to evaluate the effectiveness of baffles in limiting the wave height and the wave propagation.

Finite element simulations performed with a fixed mesh technique able to describe the free surface evolution are contrasted with experimental data. The experiments consist of an acrylic tank of rectangular section designed to attach baffles of different sizes at different distance from the bottom. The tank is filled with water and mounted on a shake table able to move under controlled horizontal motion. The free surface evolution is measured with ultrasonic sensors. The numerical results computed for different sloshing conditions are compared with the experimental data.

The reported numerical results are in general in good agreement with the experiments. In particular, wave heights and frequencies response satisfactorily compared with the experimental data for the several cases analyzed during steady state forced sloshing and free sloshing. The effectiveness of the baffles increases near resonance conditions. From the set of experiments studied, the major reduction of the wave height was obtained when larger baffles were positioned closer to the water level at rest.

Model validation: evaluation of the effectiveness of non-massive immersed baffles during sloshing.

The value of the present work encompass the numerical and experimental study of the effect of immersed baffles during sloshing under different imposed conditions and the comparison of numerical results with the experimental data. Also, the results shown in the present work are a contribution to the understanding of the role in the analysis of the proposed problem of some specific aspects of the geometry and the imposed motion.

Despite the increasing evidence on the effects of the economic crisis and austerity policies on the health of the population, we lack knowledge of how the young population is being affected. High unemployment rates, labour instability, high housing costs and cuts in public policies have placed the young in a vulnerable situation. We explore changes (2006–2017) in the both physical and mental health of young people in Spain using a selection of health indicators. By doing so we draw the reader’s attention to three elements with a close relationship to neoliberalism: the prominence of social determinants of health, the importance of inequalities and the accumulation of multiple sources of disadvantage in certain groups and individuals which ultimately condition the course of their lives; and the use of medicalization as a common and legitimised response to poor mental health.

The relationships between tourist resorts and transnational crime are rarely analyzed systematically. This paper begins to fill this gap by examining how organized crime groups and individuals linked to them can take advantage of tourist resorts to commit crimes.