08 février 2024

Wébinaire Manuel García-Villalba

Manuel García-Villalba est professeur de mécanique des fluides numérique à l'Institut de mécanique des fluides et de transfert thermique de l'Université technique de Vienne (Autriche) depuis 2022. Auparavant, il était professeur associé à l'Universidad Carlos III de Madrid, en Espagne, et a également travaillé à l'Institut de technologie de Karlsruhe, en Allemagne, où il a également obtenu son doctorat. Ses recherches portent sur la mécanique des fluides numérique et ses applications en ingénierie et en biomédecine.
Fluid-structure interaction in some bioinspired problems: a numerical study

The motion of insects, birds or fish can be described as a fluid-structure interaction problem, in which one or more deformable bodies are immersed in a fluid. The dynamics of the bodies is a direct result of their hydrodynamic interaction with the surrounding fluid, which is driven by their deformation (active or passive). As a consequence, the resulting problem is a highly non-linear problem consisting of the coupling between the equations of the fluid motion and the equations of motion of the bodies. Moreover, these bodies are usually geometrically complex: they may have mobile appendages and/or they may be deformable and subject to large deformations. This geometrical variability/complexity poses additional problems when modelling this kind of problems, since the fluid-solid interface changes with time. In our group, we have developed a methodology to study bioinspired fluid structure interaction problems (https://doi.org/10.1016/j.jfluidstructs.2022.103519). In the talk we will briefly introduce the methodology and to illustrate its capabilities two applications will be presented. First, we will report simulations of the flow around spanwise-flexible wings in forward flight (https://doi.org/10.1017/jfm.2023.308). This is a rich problem which involves fluid-structure resonance and aerodynamic tailoring. Second, we will discuss hydrodynamic interactions of self-propelled flappers in tandem configuration (https://doi.org/10.1017/jfm.2021.918). In this problem, we will show how the performance of the follower flapper is influenced by hydrodynamic interactions with the wake of the leader flapper.

08 février 2024, 16h3017h30
Wébinaire (veuillez contacter F. Romano pour obtenir le lien)

Prochains évènements

Voir l'agenda
04 juillet 2024

HDR Francesco Romano

Stability, mixing and asymptotic modeling in flows with well-separated characteristic length scales

12 juillet 2024

Soutenance Thèse Thomas HURET

Génération en soufflerie d'écoulements cisaillés turbulents représentatifs des écoulements environnementaux de couches limites atmosphériques par des dispositifs passifs