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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.5

ISSN 印刷: 1065-3090
ISSN オンライン: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.2017021159
pages 323-344

BLAST WAVE VISUALIZATION AND DENSITY MEASUREMENT AROUND CYLINDERS IN CROSS FLOW: EXPERIMENTAL AND NUMERICAL STUDY

Daniel Klatt
French-German Research Institute of Saint-Louis, Saint Louis CEDEX, 68301, France
Friedrich Leopold
Head, Aerodynamic: Measurements and Simulation French-German Research Institute of Saint-Louis, 5 rue du Général Cassagnou BP 70034, 68301 Saint-Louis Cedex, France Germany Address: Postfach 1260, 79547 Weil am Rhein, Germany

要約

In this paper, the Colored Background Oriented Schlieren (CBOS) technique is applied to measure the density field around quasi two-dimensional cylinders passed by a blast wave. Time-resolved Differential Interferometry (DI) is additionally used in order to visualize the complex shock–shock interactions. Sensors in the shock tube wall measure the time-resolved pressures at certain positions. The qualitative (DI) and quantitative (CBOS, pressure sensors) experimental data are compared against Computational Fluid Dynamics (CFD) simulation results. The CFD results allow one to explain the effects coming along with blast waves and their interaction with obstacles. Excellent agreement between experiment and simulation was found.


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