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Digital Mach-Zehnder holographic interferometer using pulsed laser for analyzing large flow fields

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Abstract

A digital Mach-Zehnder holographic interferometer is designed for analyzing large flow fields. The optical setup produces very narrowed interference fringes which are analyzed by 2D FFT. Results are shown on the unsteady wake flow around a circular cylinder at Mach 0.75.

© 2016 Optical Society of America

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