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Theses

Etude aérothermique d'un jet de gouttes monodispersé en évaporation et en combustion à l'aide de méthodes optiques

Abstract : The knowledge of aerothermal phenomena occurring in the combustion chamber is a key point in order to improve propulsive systems. Non intrusive optical diagnostics are necessary to investigate the mechanisms governing the droplets evaporation. A technique based on two colours laser-induced fluorescence allows obtaining the space averaged temperature of streaming droplets and the temperature distribution inside a droplet for linear monodisperse droplet stream. Sizes of droplets are measured with the use of a Phase Doppler Particle Analyser. An energetic budget allows to determine experimentally Nusselt and Sherwood numbers in combustion. Within droplets motions are modelled by a Hill vortex with an intensity adjusted from space averaged temperature measurements or from experimental temperature maps. Vapour transport phenomena inside the gaseous phase are studied by using the Planar Laser Induced Fluorescence technique in order to determine the concentration field of vapour.
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Theses
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http://docnum.univ-lorraine.fr/prive/SCD_T_2004_0169_CASTANET.pdf
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https://hal.univ-lorraine.fr/tel-01746761
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Submitted on : Thursday, March 29, 2018 - 10:44:22 AM
Last modification on : Friday, February 26, 2021 - 2:46:04 PM

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  • HAL Id : tel-01746761, version 1

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Guillaume Castanet. Etude aérothermique d'un jet de gouttes monodispersé en évaporation et en combustion à l'aide de méthodes optiques. Autre. Université Henri Poincaré - Nancy 1, 2004. Français. ⟨NNT : 2004NAN10169⟩. ⟨tel-01746761⟩

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