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DIGITAL HOLOGRAPHIC-INTERFEROMETRY IN HIGH-SPEED FLOW RESEARCH
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UNSPECIFIED (1992) DIGITAL HOLOGRAPHIC-INTERFEROMETRY IN HIGH-SPEED FLOW RESEARCH. EXPERIMENTS IN FLUIDS, 13 (1). pp. 56-62. ISSN 0723-4864.
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Abstract
A dual reference beam, plane wave, digital holographic interferometric system has been developed. It has also been applied as a non-intrusive optical diagnostic tool to a high speed flow. Quantitative density data has been extracted automatically by first generating phase-stepped interferograms. These were then digitized via a charge coupled device (CCD) camera and digitally post-processed within the memory of a computer. The results obtained have mapped an instantaneous 3-D density distribution of an unsteady flow field onto a 2-D projection plane. They show quantitatively the interaction between a shock wave and a turbulent boundary layer. A description has also been made showing how the dual reference beam technique can be extended to provide a quantitative density measurement of turbulent and unsteady flow structures.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TJ Mechanical engineering and machinery | ||||
Journal or Publication Title: | EXPERIMENTS IN FLUIDS | ||||
Publisher: | SPRINGER VERLAG | ||||
ISSN: | 0723-4864 | ||||
Official Date: | May 1992 | ||||
Dates: |
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Volume: | 13 | ||||
Number: | 1 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 56-62 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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