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PhD on Experimental investigation of developed turbulence in the Taylor-Couette flow subject to a radial temperature gradient, Univ. Le Havre Normandie

Du 1 mai 2019 au 31 juillet 2019

Starting : fall 2019

Site actualite
LOMC, UMR 6294 CNRS-Université Le Havre Normandie

Contact
:
Arnaud Prigent(prigenta@univ-lehavre.fr),
Innocent Mutabazi (mutabazi@univ-lehavre.fr)

The thesis project aims to investigate the effect of the radial temperature gradient on turbulence in the T aylor-Couette flow between two coaxial differentially rotating cylinders.

Turbulent flows transport mass and energy but they are also sources of energy dissipation. Turbulence is suitable when it favors mixing but it should be avoided when it dissipates much energy. Its control represents a big issue in various industrial applications (aeronautical, automotive, chemical or food industries)

The thesis project aims to investigate the effect of the radial temperature gradient on turbulence in the T aylor-Couette flow between two coaxial differentially rotating cylinders. V arious metrology techniques (visualization, torque and temperature measurement, Laser Doppler Velocimetry (LDV); stereoscopic and tomographic Particle Image Velocimetry (PIV) will be used to characterize the turbulent flow for different values of control parameters (Rayleigh number Ra and Taylor number Ta). For chosen values of the control parameters Ra and Ta, these measurements will lead to the determination of the rate of the kinetic energy dissipation, heat transfer coefficient (Nusselt number), wall friction coefficient but also statistics of the velocity and temperature fluctuations.

The candidate should have a solid training either in Fluid Dynamics or in Physics of Liquids or in Energetics and be interested in experimental techniques.

The thesis will be performed in LOMC under the supervision of A. Prigent and I. Mutabazi. The experimental work will be guided by numerical study ongoing in the team. The PhD. student will benefit from a doctoral fellowship given by the Normandy Region.

Contact person :
Arnaud Prigent(
prigenta@univ-lehavre.fr), Innocent Mutabazi (mutabazi@univ-lehavre.fr) Phone : +33(0) 35 21 71 24 or +33(0) 35 21 71 19