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Postdoc on the interaction of droplets with a turbulent / non-turbulent interface, LMFL (Lille)

Du 1 janvier 2023 au 31 décembre 2023

1 year position (possible extension for a 2nd year)
Starting date : December 1st, 2022
Deadline for applications : November 1st, 2022
Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet (LMFL)
Contact :
jean-marc.foucaut@centralelille.fr
john-christos.vassilicos@centralelille.fr
 

The influence of rain on flows around vehicles is a new emerging theme at LMFL. A crucial aspect of the physics that determines both the mean drag and its fluctuations concerns the sharp and dynamic interface that exists in turbulent sheared flows between the turbulent and non-turbulent parts of the flow. An important aspect of the influence of rain is the interaction between droplets and this interface, and this aspect is in fact of more general importance as it is present in other situations (environmental dispersion, clouds, etc).

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Job description Function

Assignment: LMFL 
Required level: PhD
Application deadline : 1/11/2022 
Taking office: 1/12/2022 Quota : 100%
Remuneration: 3000€ (gross)
Duration : 13 months (extension possible for 12 additional months)

Description of the employer
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Centrale Lille is a public scientific, cultural and professional institution external to universities, comprising four internal engineering schools: École Centrale de Lille, École nationale supérieure de chimie de Lille, IG2I and ITEEM. Centrale Lille also offers national master's degrees, including some entirely taught in English, and doctorates. Centrale Lille has more than 2,100 students, 180 PhD students, 228 teachers, teaching researchers and researchers, and 152 non-teaching staff.

The institution is located on 2 campuses: in Villeneuve d’Ascq and Lens. It is joint supervisor of seven research laboratories with the University of Lille, including six joint research units with CNRS, and several joint teams with Inria Lille - Nord Europe.

Subject:

The influence of rain on flows around vehicles is a new emerging theme at LMFL. A crucial aspect of the physics that determines both the mean drag and its fluctuations concerns the sharp and dynamic interface that exists in turbulent sheared flows between the turbulent and non-turbulent parts of the flow. An important aspect of the influence of rain is the interaction between droplets and this interface, and this aspect is in fact of more general importance as it is present in other situations (environmental dispersion, clouds, etc). The laboratory has strong expertise in PIV and turbulence and also has a planar jet and a droplet velocity, size and concentration measurement apparatus available for this study. The laboratory also plans to build a new wind tunnel specifically for aerodynamic studies in rainy conditions that will be integrated into the CONTRAERO platform. The mission of the post-doc will be to study and select the water droplet generation and injection systems and to use them for the experimental study of the interactions between droplets and the turbulence/non-turbulence interface. He will also assist in the implementation of the new wind tunnel and his project will be the first to benefit from it.

The Post Doc will be part of a team including Christophe Cuvier and Jean-Marc Foucaut for their PIV expertise, Jean-Philippe Laval for his numerical and algorithmic expertise on the turbulence/non-turbulence interfaces and John-Christos Vassilicos for his expertise on the physics of these interfaces and their interactions with particles/droplets. The position is initially for 13 months with a possibility of extension for 12 more months.

Laboratory: (http://lmfl.cnrs.fr/)
Laboratoire de Mécanique des Fluides de Lille 
– Kampé de Fériet (LMFL) is a joint laboratory between: ONERA, CNRS, Centrale Lille, University of Lille, Ecole Nationale Supérieure d’Arts et Métiers (ENSAM), where 35 faculties and engineers work in the fields of turbulence, aerodynamics and flight physics. The team hosting the Post-Doc is involved in fundamental study of turbulence, diphasic flow and optical measurement techniques.

Fellowship:

The gross salary is approximately 3000 € per month (depending of experiences) and the employer is Centrale Lille. The 13 months fellowship will start in December 2022. An extension of 12 months will be possible.

Candidate:

The Post Doctoral Fellow will have expertise in experimental measurements of turbulent flows such as PIV and advanced post-processing of turbulent flow data or in experimental study of diphasic flow.

Contacts:
J.M.Foucaut Professor at the LMFL, Lille, France.
jean-marc.foucaut@centralelille.fr
J.C. Vassilicos Research Director at the LMFL, Lille, France.
john-christos.vassilicos@centralelille.fr

Centrale Lille Cité Scientifique – CS20048 – 59651 Villeneuve d’Ascq Cedex – France Tél. + 33 (0)3 20 33 53 53 – http://centralelille.fr