Flow visualization by laser induced fluorescence method.
نویسندگان
چکیده
منابع مشابه
Scalar Measurements by Laser Induced Fluorescence
This study is concerned with the measurements of scalar variables in turbulent flows, by Laser Induced Fluorescence. We used solutions of water and rhodamine B, to study the properties of the fluorescent tracer and the characteristics of the fluorescence signal and its dependence on the instrumentation and other experimental conditions. It is shown that a linear relationship between light inten...
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Fluorescence imaging is a tool of increasing importance in aerodynamics, fluid flow visualization, and nondestructive evaluation in a variety of industrial circumstances. It is a means for producing two-dimensional images of real surfaces or fluid case-sectional areas that correspond to data on properties such as temperature or pressure across the surfaces. This article discusses three major fl...
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Ratiometric Laser Induced Fluorescence (LIF) Thermometry is applied for temperature measurements in a ‘T’ junction, using microscale visualization methods. Rhodamine B (RhB) and Rhodamine 110 (Rh110) are used as the temperature-dependent and temperature-independent dye, respectively. The temperature responses of the two dyes were carefully measured for different concentrations. A novel normaliz...
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A Laser Induced Fluorescence technique (LIF) has been used to study the mixing behavior of two emerging streams in a T-Type mixing chamber. A mixing index on the basis of digital image light intensities is calculated. It has been shown that averaging over more than 800 images leads to a stable mixing index calculation. Moreover, the effect of equal and un-equal flow rates on the mixing behavior...
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We describe how spatially resolved velocity measurements can be acquired using a pulse-amplified single-mode cw laser with a potential of single-shot measurements. The laser beam was tuned to the point of maximum slope of a Doppler-broadened absorption profile of I(2), which was seeded into the flow. The beam was then split into two components and sent counterpropagating through the measurement...
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ژورنال
عنوان ژورنال: JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN
سال: 1987
ISSN: 1884-0361,0287-3605
DOI: 10.3154/jvs1981.7.77