36 mois

Thèse 2026: Etude du comportement et de la dispersion d’espèces d’écrevisses invasives en fonction des caractéristiques d’écoulements

[TheChamp-Sharing]
Cette thèse s’inscrit dans le contexte d’un besoin de compréhension mécaniste des processus contrôlant la dispersion des écrevisses invasives en cours d’eau. La question centrale est de déterminer comment les régimes d’écoulement, et en particulier la vitesse, la turbulence, le substrat du fond et la structure locale de l’écoulement autour des individus, influencent la dispersion des écrevisses, et dans quelle mesure les différences observées entre espèces peuvent s’expliquer par des interactions entre morphologie, posture et hydrodynamique locale.
Damien Calluaud - Contacter
Bâtiment H2, site du Futuroscope

Autres offres d'emploi

Retour à la liste
12 months

POST-DOC (M/F) - Control by Machine Learning of bluff body wakes

At the CNRS-Laboratory PPRIME, based at the Futuroscope, this post-doctorate position is part of the French ANR COWAVE program between the laboratories PRISME in Orleans, Pprime in Poitiers, LHEEA in Nantes and the PSA automotive industry. This Post-Doc position concerns the Pprime contribution to the COWAVE project which aims the experimental exploration of closed-loop wake control strategies with mobile flaps in a water tunnel facility. Three-dimensional bluff-body wakes generate pressure drag and side forces and thus contribute significantly to the fuel consumption and pollutant emission of road vehicles. Despite this crucial impact and the numerous attempts to reduce harmful environmental effect of bluff body wakes by flow control it is still unclear what is the most efficient control strategy! In this context, the ANR project COWAVE addresses two fundamental aspects of wake control: - First, what kind of actuators are most efficient? While most closed-loop control strategies use viscous entrainment effects to actuate the shear layers in the wake, the exploitation of pressure forces produced by mobile deflectors could be an interesting alternative to be tested. - Second, for the implementation of closed-loop control, we want to test if control strategies obtained by machine learning techniques allow to obtain better efficiency and robustness than the more classical model-based approaches? The proposed Post-Doc position is part of the French ANR COWAVE program between the laboratories PRISME in Orleans, Pprime in Poitiers, LHEEA in Nantes and the PSA automotive industry. This Post-Doc position concerns the Pprime contribution to the COWAVE project which aims the experimental exploration of closed-loop wake control strategies with mobile flaps in a water tunnel facility. APPLY Follow link / Application Deadline : 12 March 2021 https://bit.ly/3qDG6Ml