March 3, 2026Open Access

Capturing violent and turbulent sloshing dynamics using SPH modelling

Key Points

The δ⋆-SPH model features enhanced resolution for small-scale turbulence and provides a precise assessment of sloshing energy dissipation.
This approach is backed by a large eddy simulation framework to characterize turbulent sloshing flows effectively.
Combined techniques reduce volume conservation errors and eliminate tensile instability for a more robust modeling strategy.
The results emphasize the importance of advanced modeling techniques in accurately capturing complex fluid dynamics.

Abstract

In this study, five different smoothedparticle hydrodynamics (SPH)modelsareusedtotest thecapabilityofaddressingthe challengesofviolentsloshingflowscharacterizedbyhighfreesurface fragmentation and turbulent behavior. ALargeEddy Simulation(LES)frameworkisadoptedforallfivemodels.The comparativeanalysisdemonstrates the improvedperformances forthelastmodelwhichadoptsthecombinationofrenormalized pressuregradient, particle shifting technique, andanadaptive numericaldiffusivetermaddedonlyonthecontinuityequation. Thiscombinationislabeledasδ⋆-SPHandthemainadvantages include: (i) the resolution of small-scale turbulence, (ii) a moreaccurateassessmentofsloshingenergydissipation, (iii)a reductioninvolumeconservationerrors,and(iv)theabsenceof tensileinstability,establishingitasarobustschemeforstudying highlyturbulent sloshingflows.

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Cite This Study

Pilloton et al. (Tue,) studied this question.

synapsesocial.com/papers/69a75b26c6e9836116a21f20 https://doi.org/https://doi.org/10.5281/zenodo.18380586

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