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Dual hologram shearing interference technique with enhanced sensitivity for wind tunnel testing (1998)

Toker, G. ; Levin, D. ; Lessin, A.

Springer

Experiments in fluids 25 (1998), S. 519-521

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ISSN: 1432-1114

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Notes: Abstract A novel optical diagnostic approach, namely, a dual hologram shearing interferometry with enhanced sensitivity, is proposed for visualization, and for measuring the density gradients of the flow in wind tunnels. The technique is especially useful for strong turbulent and/or unsteady regions flows. The features of the technique make it tolerant to vibrational disturbances typical to many wind tunnel facilities. The method was demonstrated by its application to a supersonic flow over a spherically blunted nose cone/cylinder model.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/s003480050258

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