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Rayleigh Light Scattering for Concentration Measurements in Turbulent Flows

Published

Author(s)

William M. Pitts

Abstract

Despite intensive research efforts over a number of years, an understanding of scalar mixing in turbulent flows remains elusive. An understanding is required because turbulent mixing has a pivotal role in a wide variety of natural and technologically important processes. As an example, the mixing and transport of pollutants in the atmosphere and bodies of water are often dependent on turbulent mixing processes. Turbulent mixing is also central to turbulent combustion which underlies most hydrocarbon energy utiliztion in modern socities as well as unwanted fire behavior. Development of models for combusting flows is crucial for more efficient utilization of limited hydrocarbon fuel resources, reduction in environmentally harmful pollutants, more efficient chemical processes, and for the prediction of hazard associated with unwanted fire. However, an understanding of scalar mixing is required before useful models of turbulent mixing and, ultimately, turbulent combustion can be developed.
Proceedings Title
National Aeronautics and Space Administration/Lewis Research Center
Conference Dates
July 25-26, 1995
Conference Location
Cleveland, OH

Keywords

light scattering, concentration measurements, concentration fluctuations, flow fields, flow measurement, line cameras, rayleigh light scattering, turbulent jets, axisymmetric jets, scalar dissipation

Citation

Pitts, W. (1995), Rayleigh Light Scattering for Concentration Measurements in Turbulent Flows, National Aeronautics and Space Administration/Lewis Research Center, Cleveland, OH, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=911728 (Accessed May 21, 2024)

Issues

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Created July 25, 1995, Updated February 19, 2017