UNIVERSITE ORLEANS
State University, Browse similar opportunities
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State University, Browse similar opportunities
Context:
The industrial chair ACXEME (French acronym for Ignition, Explosion, Environment and Energetic Materials) is a research program selected in June 2019 by the French National Research Agency (ANR). The chair leader is a Professor working in Bourges University Institute of Technology. This project proposes a significant contribution for the improvement of explosive and propulsive energy systems with solid fuel. Major advances will be proposed on the two following axes: optimization of materials for designed systems and prediction capacity of composition of energetic materials and system design under current and future environmental constraints. Challenges at material, energetic and system levels are met by a consortium of industrial (MBDA France, Nexter Munitions, ASB Aerospatiale Batteries) and academic (PRISME with ICARE-CNRS Laboratories) researchers. Job offer proposed below is part of this industrial chair that started in January 2020.
Description of work places:
PRISME Laboratory (EA 4229) is a scientific research laboratory of Orleans University and Centre-Val de Loire National Institute of Applied Sciences (INSA). Research area covers all fields of engineering sciences and it is organized in several Research Teams. Combustion-Explosions (CE) Research Team aims at understanding phenomena leading a reactive system to ignite or explode. These phenomena are studied from hydrodynamical (overpressure, deflagration etc.) or thermal (pyrolysis, fires) points of view, but also with the improvement of adapted metrological tools.
The job is located in central France, in Bourges, a human-scale city, the capital of Berry, labeled "city of Art and History".
Introduction:
In the industrial sector, a new additive manufacturing process is gradually replacing foundries to manufacture metal parts with high added value. The powders used to make these parts present a risk of dust explosion, which we wish to reduce by this topic.
The objective of the thesis is to understand how dust dispersed in air explode, to improve user safety.
Proposed Subject:
Literature review: This bibliographic study will enrich the existing synthesis studies on the combustion of aluminium or titanium powder (metals with high heat of combustion), it will be updated with the recently published work in the field and it will expand the field to so-called hybrid explosions of the metal/hydrocarbon mixture.
Experimental part: The candidate will have to appropriate the experimental devices and techniques available in the laboratory but also adapt them to the specificities of the study of the combustion of metal dust dispersed in a gas mixture. He will perform tests on the metallic powders and hybrid mixtures selected to carry out a parametric study on the physical quantities describing combustion and its mechanisms to interpret and represent the results.
Modeling part: The candidate will have to assimilate one of the CFD code (eg CFD ace) available in the laboratory as well as the models developed to represent the experimental devices, in order to optimize the initial experimental conditions and better relate them to the combustion parameters.
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