Experimental and Numerical Investigations of the Characterisation of Reflected Overpressures around a Complex Structure

In explosion-structure interaction problems, an accurate prediction of blast loading remains a hard challenge. The reflected overpressures around a complex structure, such as a building with an apse and an atrium are almost always unpredictable so that experiments and numerical simulations may be th...

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Bibliographic Details
Published inJournal of applied fluid mechanics Vol. 9; no. SI1; pp. 121 - 129
Main Authors Blanc, Ludovic, Hanus, Jean-Luc, William-Louis, Mame, Le-Roux, Benjamin
Format Journal Article
LanguageEnglish
Published Isfahan Isfahan University of Technology 01.01.2016
Isfahan Isfahan University of Technology
Subjects
Blast loads
Computational fluid dynamics
Computer simulation
Diffraction
Environmental Engineering
Environmental Sciences
Explosions
Incidence angle
Mathematical models
Numerical prediction
Overpressure
Small scale
VAPOR CLOUD EXPLOSION
BLAST
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Summary:In explosion-structure interaction problems, an accurate prediction of blast loading remains a hard challenge. The reflected overpressures around a complex structure, such as a building with an apse and an atrium are almost always unpredictable so that experiments and numerical simulations may be the only possibilities to evaluate the threat of an industrial explosion. Well instrumented blast experimental studies are first carried out at small scale on a rigid specimen with a variable incidence angle. The main objective is to observe and quantify the regular and irregular reflections and the diffractions of a blast wave on a real structure. In parallel, numerical simulations are performed with a home-made eulerian CFD code. The comparison with experimental results permits to discuss the capabilities and limitations of numerical blast predictions.
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ISSN:1735-3572
1735-3645
DOI:10.36884/jafm.9.SI1.25823