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Inicio  /  Aerospace  /  Vol: 2 Par: 2 (2015)  /  Artículo
ARTÍCULO
TITULO

Shock Wave Attenuation Using Foam Obstacles: Does Geometry Matter?

Hongjoo Jeon    
Jonathan R. Gross    
Sarah Estabrook    
Stylianos Koumlis    
Qian Wan    
Gauri R. Khanolkar    
Xingtian Tao    
David M. Mensching    
Edward J. Lesnick and Veronica Eliasson    

Resumen

A shock wave impact study on open and closed cell foam obstacles was completed to assess attenuation effects with respect to different front face geometries of the foam obstacles. Five different types of geometries were investigated, while keeping the mass of the foam obstacle constant. The front face, i.e., the side where the incident shock wave impacts, were cut in geometries with one, two, three or four convergent shapes, and the results were compared to a foam block with a flat front face. Results were obtained by pressure sensors located upstream and downstream of the foam obstacle, in addition to high-speed schlieren photography. Results from the experiments show no significant difference between the five geometries, nor the two types of foam.

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