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

ISSN Print: 1065-3090
ISSN Online: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v4.i3.10
pages 189-199

IMAGING SUPERSONIC AIRCRAFT SHOCK WAVES

Leonard M. Weinstein
Measurement Science and Technology Branch, NASA Langley Research Center, Hampton, Virginia
Kathryn Stacy
Scientific Applications Branch, NASA Langley Research Center, Hampton, Virginia
Gerald J. Vieira
Sounding Rockets and Range Management Branch, NASA Wallops Flight Facility, Wallops Island, Virginia
Edward A. Haering, Jr.
Aerodynamics Branch, NASA Dryden Flight Research Center, Edwards Air Force Base, California
Albion H. Bowers
Aerodynamics Branch, NASA Dryden Flight Research Center, Edwards Air Force Base, California

ABSTRACT

A schlieren imaging system that uses the sun as a light source was developed to obtain direct flow-field images of shock waves of aircraft in flight This system was used to study how shock waves evolve to form sonic booms. The image quality obtained was limited by several optical and mechanical factors. Converting the photographs to digital images and applying digital image-processing techniques greatly improved the final quality of the images and more clearly showed the shock structures.


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