Energy balance in unsteady multiphase turbulence
| Quand ? |
Le 19/03/2026, de 11:00 à 12:00 |
|---|---|
| Où ? | Amphi C |
| Participants |
Fabien Thiesset |
| Ajouter un événement au calendrier |
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Flows of immiscible fluids are common in both natural and industrial systems. In many cases, the interfacial surface area between the two phases is a critical parameter, controlling phenomena such as heat and mass transfer. Yet, predicting the interface surface area requires understanding the complex coupling between the flow and the interface which remains a major challenge. This interplay becomes clear when considering energy balances: the interface stores surface energy through surface tension, coexisting with kinetic energy, and their mutual conversion can strongly influence the overall energy balance. This seminar addresses how these different forms of energy interact. Light is shed on the dynamical cycle connecting energy injection, conversion, and dissipation, using direct numerical simulations and one-point closure modelling.