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CFD Jobs Database - Job Record #16652

Job Record #16652
TitleFlow modeling for thermal and air quality applications
CategoryPostDoc Position
EmployerIMT Lille Douai
LocationFrance, Douai
InternationalYes, international applications are welcome
Closure DateTuesday, September 01, 2020
Description:
Post doctoral fellowhip :

"Numerical and experimental multi-scale flow modeling for thermal and air 
quality applications"

Research Center : ENERGY AND ENVIRONNEMENT

Affiliation : Ecole Nationale Supérieure Mines-Télécom Lille Douai (IMT Lille 
Douai)


Context :

Created by the merger of Mines Douai and Telecom Lille on January 1st, 2017, 
IMT Lille Douai is the largest graduate school of engineering in the north of 
Paris. It aims at teaching the general engineers and digital experts of the 
future. Located at the crossroads of Europe, between Paris, London, Brussels 
and Amsterdam, IMT Lille Douai intends to become a major player in industrial 
and digital transformation of the society by combining engineering science and 
digital technologies. Based on two sites dedicated to research and education in 
Douai and Lille, IMT Lille Douai has research facilities of almost 20,000m² 
devoted to high-level scientific activities in the following areas:
- Digital science,
- Energy and Environment,
- Materials and Process engineering applied to polymers, composites and civil 
engineering.


Scientific project :

     The ECOPECCH project (flow/particle interaction for particle sensors and 
heat exchangers efficiencies) was proposed recently to study the particle 
transport and deposition phenomena for two types of applications: the embedded 
particle sensors and the heat exchangers.

- The embedded particle sensors are used to identify and to realize “real-time” 
air quality monitoring and is a helpful tool for political decision to decrease 
the impact of automotive traffic. This device is basically used on-top of 
vehicle to capture the representativeness of air pollution across a city.
Recent studies showed that the pollution representativeness measured from 
particle sensors is influenced from the vehicle’s velocity: the higher the 
velocity, the lower the representativeness.

- The heat exchangers are widely used in energy systems (automotive, nuclear, 
buildings, etc.) for heat transfer between two fluids. Fouling is one of the 
major problems that one must cope to maintain heat exchanger’s efficiency and 
durability. This phenomenon occurs when particles inside fluids deposit on the 
exchange surface which can significantly decrease the heat transfer. To 
overcome this complex phenomenon, the heat exchangers are usually oversized. 
Overall analysis of heat exchanger’s fouling can be found in the literature, 
but the local mechanism such as sweeps and ejections phenomena are not yet 
understood in such complex and confined systems like fins-andtubes heat 
exchangers for instance. A better optimized design could lead to lower fouling 
and compact systems with higher energy efficiency.

The goal of the ECOPECCH project is to develop both numerical and experimental 
tools which enable 1) to analyze the impact of flow regimes on the particles 
sensors detection leading to new sensor design optimization and 2) to predict 
both globally and locally the particle transport inside and through the heat 
exchanger.

     The ITAQ project (Thermal-Aeraulic Interaction and Indoor Air Quality) was 
developed in the CERI EE to globally and locally analyze both experimentally 
and numerically the combination of different factors in indoor environment that 
can have a major influence on air quality such as thermal, flow effects and 
materials which are the main sources of pollution. One of the goals of this 
project is to equip a real-scale low consumption building with thermal, 
aeraulic sensors and air pollution analyzers.


Objectives :

This position has two main objectives:

1- The first objective is to design a new experimental aeraulic bench adapted 
for flow-analysis around sensors and fouling identification for heat exchangers 
(ECOPECCH project). This bench must include local flow measurements and 
particle tracking techniques (S-PIV, LDA, PDA), enables the injection of 
pollutants (particles and gas), and must be adapted to set different size of
heat exchangers. This task includes 1) the design and the dimensioning of the 
bench using both CFD and CAD softwares, 2) the supervising of the bench set-up 
with the help of the CERI EE engineers and technicians, 3) An accurate control 
on flow properties, such as velocity profile, turbulence level and 4) the first 
measurement campaign on sensors and/or heat exchangers fouling, depending on 
the candidate profile. A publication is expected and/or a detailed report on
a methodology used for test bench.

2- The second objective is to perform experimental long-time monitoring in real 
conditions inside the low-consumption equipped building including temperature, 
flow, humidity, and pollution (COV) time-monitoring. This study is expected to 
be presented at scientific meetings and be published in impact journals. The 
researcher will also be expected to participate in teaching activities 
according to his/her background.


Candidate profile, personal skills, and requirements :
The candidate should hold a PhD degree in fluid mechanics (experimental and/or 
numerical). A true expertise in CFD is required. The candidate must possess a 
good working knowledge of Solidworks CAD software. Experimental background in 
one of the following fields will be gratefully appreciated: particle and/or gas 
dispersion, turbulence, heat transfer, air quality, design optimization. An
experience in the setting-up of test bench is a plus.

The candidate will send resume, motivation letter, recommendation letter, PhD 
diploma, and other documents which might be important to analyze the 
candidate’s profile, to the following email address:

remi.gautier@imt-lille-douai.fr


Further informations:
- Full-time postdoctoral position
- Duration: 12 months
- Starting date: from September 1st 2020 to December 1st 2020
Contact Information:
Please mention the CFD Jobs Database, record #16652 when responding to this ad.
NameRémi GAUTIER
Emailremi.gautier@imt-lille-douai.fr
Email ApplicationYes
Phone+33 3 27 71 23 35
URLhttp://imt-lille-douai.fr/carrieres-lecole-recrute/
Record Data:
Last Modified12:00:31, Tuesday, June 30, 2020

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