NASA NTRS · 20160005917
Background-Oriented Schlieren for Large-Scale and High-Speed Aerodynamic Phenomena
Abstract
Visualization of the flow field around a generic re-entry capsule in subsonic flow and shock wave visualization with cylindrical explosives have been conducted to demonstrate sensitivity and applicability of background-oriented schlieren (BOS) for field experiments. The wind tunnel experiment suggests that BOS with a fine-pixel imaging device has a density change detection sensitivity on the order of 10(sup -5) in subsonic flow. In a laboratory setup, the structure of the shock waves generated by explosives have been successfully reconstructed by a computed tomography method combined with BOS.
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Mizukaki, Toshiharu, Borg, Stephen, Danehy, Paul M., Murman, Scott M., Matsumura, Tomoharu, Wakabayashi, Kunihiko, Nakayama, Yoshio. 2015-01-05. Background-Oriented Schlieren for Large-Scale and High-Speed Aerodynamic Phenomena. https://ntrs.nasa.gov/citations/20160005917
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