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COMPORTEMENT STATIQUE ET DYNAMIQUE D'UNE STRUCTURE PERIODIQUE 3D D'UN ECHANGEUR AERONAUTIQUE :
ÉTUDE EXPERIMENTALE, MODELISATION ET SIMULATIONS NUMERIQUES

Abstract : Aeronautical heat exchangers are subjected to a complex environment combining pressure, temperature and vibrations. The objective of this thesis is the analysis of the static and dynamic behavior of the core of an exchanger. The core is a 3D-periodic complex structure composed of an alternate stacking of fins where passes the hot and cold air respectively. Various analytical and numerical approaches based on the study of a basic cell of the structure are employed to model the global static behavior of the core at 20 and 350°C. Static results are validated by experimental tests on various types of specimens. At the end of this part, two models are proposed to replace the real structure of the core : a «homogeneous» model and a «laminated» model. The dynamic study, experimental and numerical, shows that these two models are capable of predicting satisfactorily the dynamic behavior of the core.
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https://tel.archives-ouvertes.fr/tel-00175832
Contributor : Jihad Rishmany <>
Submitted on : Monday, October 1, 2007 - 2:48:05 PM
Last modification on : Monday, October 1, 2007 - 3:17:57 PM
Long-term archiving on: : Monday, September 24, 2012 - 1:00:19 PM

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  • HAL Id : tel-00175832, version 1

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Jihad Rishmany. COMPORTEMENT STATIQUE ET DYNAMIQUE D'UNE STRUCTURE PERIODIQUE 3D D'UN ECHANGEUR AERONAUTIQUE :
ÉTUDE EXPERIMENTALE, MODELISATION ET SIMULATIONS NUMERIQUES. Mécanique [physics.med-ph]. Université Paul Sabatier - Toulouse III, 2007. Français. ⟨tel-00175832⟩

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