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Job Record #11617
TitleDevelopment of an oscillating energy harvester
CategoryPhD Studentship
EmployerInstitut P', CNRS - Université de Poitiers - ENSMA
LocationFrance, Poitiers
InternationalYes, international applications are welcome
Closure DateMonday, September 01, 2014
The doctoral project aims at designing and qualifying an energy harvester based
on the oscillations of rigid or semi-rigid airfoils with various degrees of freedom.

Experimenatal, theoretical and numerical results have demonstrated that
self-sustained oscillations of rigid wings resulting from the so-called
“flutter” phenomena can be used for energy harvesting (Theodorsen 1935 ;
McKinney & Delaurier 1981 ; Peng & Zhu 2009 ; De Oliveira Amorim 2013). 
The PhD candidate will first conduct numerical simulations of transitory and
turbulent flows around  naturally oscillating wings in order to define and
analyse the most efficient operating points of different energy harvesting
designs. The performance of rigid and elastic blades will be compared. An
analysis of the dynamical stall phenomenon and on its influence on the harvester
performances will also be conducted. The Star CCM+ software environment,
allowing moving mesh superimposition using the « chimera » grid system
(oversets) will be used for that purpose.

A practical demonstrator will then be studied in the experimental facilities of
Institut P' and analysed in terms of efficiency and flow dynamics, using
mechanical and optical sensors. The operating ranges identified numerically will
be confronted to the experiments.

In a third part, blade-command strategies will be derived in order to
dynamically adapt the demonstrator to the flow conditions, with emphasis on wake
minimization. A flow paradigm in which vortex shedding can be theoretically
controlled will be experimentally investigated.
Contact Information:
Please mention the CFD Jobs Database, record #11617 when responding to this ad.
Email ApplicationYes
Phone+33 (0)5 49 49 69 23
Record Data:
Last Modified06:30:33, Monday, February 10, 2014

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