Akim Lavrinenko

Universitat Rovira i Virgili | URV · Department of Mechanical Engineering

This paper presents and discusses the results of the "2022 International Computational Fluid Dynamics Challenge on violent expiratory events" aimed at assessing the ability of different computational codes and turbulence models to reproduce the flow generated by a rapid prototypical exhalation and the dispersion of the aerosol cloud it produces. Gi...

The turbulent dispersion and deposition of airborne solid particles is studied by means of fully-resolved numerical simulations. The computational domain, consisting in a cubical cavity with differentially heated opposed walls filled with air, reproduces the experimental conditions of measurements previously reported in the literature. The computat...

In this work we compare the DNS results (Fabregat et al. 2021, Fabregat et al. 2021) for a mild cough already reported in the literarure with those obtained with a compressible URANS equations with a k-ϵ turbulence model. In both cases, the dispersed phase has been modelled as spherical Lagrangian particles using the one-way coupling assumption. Ov...

Object and purpose of research. The paper shows results of experiment studies of hydrographic unmanned surface vehicle of State Marine Technical University in St. Petersburg. The purpose of research is upgrading of design model. Materials and methods. Experimental studies include static air tests and dynamic tests in towing tank of unmanned surface...

The paper presents the choice of optimal structural shapes of an autonomous unmanned surface catamaran-type body using modern computational fluid dynamics. In modern surface vehicles, most of the onboard energy is spent on movement, so the choice of optimal structural shapes in terms of performance data can seriously affect the autonomy of the obje...