Abstract.
A speckle photographic technique is used for visualizing the planar distribution of the refractive deflection angles of light transmitted through a compressible turbulent flow. Double exposure speckle photography is applied for the statistical analysis of such flows. Quantitative visualization of the planar distribution of the refractive deflection angles of the light transmitted through the compressible turbulent flow is performed. Turbulent structures are visible in the patterns of the deflection angles isolines. The 2-D correlation functions of these deflection angles are constructed and analyzed. A mathematical procedure for solving Erbeck-Merzkirch integral transformation is described and the 3-D density correlation functions are evaluated using 2-D correlation functions of deflection angles of the light passed through the turbulence.
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Received 14 November 1999 / Accepted 3 June 2000
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Fomin, N., Lavinskaja, E., Merzkirch, W. et al. Turbulence microscale variation due to interaction with shock wave. Shock Waves 10, 345–349 (2000). https://doi.org/10.1007/s001930000063
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DOI: https://doi.org/10.1007/s001930000063