Stereoscopic flow-tagging velocimetry
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A laser-based method for measuring the three components of the velocity in a plane simultaneously and instantaneously without seed particles is presented. This is achieved by combining a laser flow-tagging technique with stereoscopic detection, in which the tagged flow is viewed from two different directions. A single CCD camera is employed for this purpose by using a new optical detection system. The flow tagging is performed by two consecutive laser pulses, i.e., “write” and “read” laser pulses. The write laser creates a grid of tracer molecules (NO) by inducing a photodissociation process. The three-dimensional motion of the tracer molecules is measured by a thick read laser sheet.
- Stereoscopic flow-tagging velocimetry
Applied Physics B
Volume 69, Issue 5-6 , pp 509-512
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- PACS: 47.27.-i; 42.62.Fi
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