36 months

PhD – Physical properties of functional thin films under mechanical stresses

[TheChamp-Sharing]
The proposed thesis is part of an international collaborative research project (PRCI) of the ANR (French National Research Agency) and its Austrian alter ego the FWF (Fund zur Furderung der Wissenschaftlichen Forschung): NANOARCHITECTED FILMS FOR UNBREAKABLE FLEXIBLE ELECTRONICS (NANOFILM). The thesis aims to understand the relationship between the microstructure and the mechanical and electrical properties of nanostructured thin films using synchrotron radiation and X-ray diffraction supported by electrical characterization techniques such as Hall effect and Van der Pauw resistivity. The candidate will have the opportunity to participate in the design and production of a new biaxial traction machine of smaller dimensions than the one used in diffraction to visualize cracks under atomic force microscopy (AFM).
Pierre-Olivier Renault - Contacter
Damien Faurie - Contacter
INSTITUT PPRIME – UNIVERSITE DE POITIERS
Département PMM - Equipe SIMAC
Bât. H1-SP2MI – 86360 CHASSENEUIL DU POITOU

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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