Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-18T09:26:33.370Z Has data issue: false hasContentIssue false
  • English
  • Français

On the light-scatter technique for the study of turbulence and mixing

Published online by Cambridge University Press:  28 March 2006

H. A. Becker ,
H. C. Hottel  and
G. C. Williams
H. A. Becker
Affiliation:
Department of Chemical Engineering, Queen's University at Kingston, Ontario, Canada
H. C. Hottel
Affiliation:
Department of Chemical Engineering, Massachusetts Institute of Technology
G. C. Williams
Affiliation:
Department of Chemical Engineering, Massachusetts Institute of Technology
Get access Rights & Permissions [Opens in a new window]

Abstract

The light-scatter technique facilitates study of the concentration field when one of the streams entering a mixing region is marked with colloidal particles. The present paper provides basic information for the effective application of the technique. The system response is analysed theoretically. The problems of noise and spatial resolution are examined and experimental data are presented from which the response parameters are evaluated numerically. The capabilities of the technique for characterizing turbulent concentration fluctuations are described. The technique is excellent in the convection region of the turbulence spectrum but fails where molecular diffusion is important.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 30 , Issue 2 , 9 November 1967 , pp. 259 - 284
Copyright
© 1967 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Batchelor, G. K. 1959 J. Fluid Mech. 5, 113.
Batchelor, G. K., Howells, I. D. & Townsend, A. A. 1959 J. Fluid Mech. 5, 134.
Becker, H. A., Hottel, H. C. & Williams, G. C. 1963 Mixing and flow in ducted turbulent jets. Ninth Symposium (International) on Combustion, p. 7.
Becker, H. A., Hottel, H. C. & Williams, G. C. 1965 Concentration intermittency in jets. Tenth Symposium (International) on Combustion, p. 1253.
Becker, H. A., Hottel, H. C. & Williams, G. C. 1967 Concentration fluctuations in ducted turbulent jets. Eleventh Symposium (International) on Combustion, p. 791.
Becker, H. A., Rosensweig, R. E. & Gwozdz, J. R. 1966 Turbulent dispersion in a pipe flow. A.I.Ch.E. J. 12, 964.Google Scholar
Bendat, J. S. 1958 Principles and Applications of Random Noise Theory. New York: Wiley.
Erickson, W. D. 1961 Light scattering: a technique for studying soot in flames. Sc.D. Thesis, Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts.
Gucker, F. T. & Cohn, S. H. 1953 J. Colloid Sci. 8, 550.
Gurnitz, R. N. 1966 Development and application of a light scattering technique for the study of premixed turbulent flames. Sc.D. thesis, Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts
Hottel, H. C., Williams, G. C. & Miles, G. A. 1967 Mixedness in the well-stirred reactor. Eleventh Symposium (International) on Combustion, p. 771.
Langmuir, I. 1918 Phys. Rev. 12, 368.
Nolan, J. T. 1946 Particle size of smoke from induction nozzles. Sc.D. thesis, Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts
Parker, P. 1950 Electronics. London: Edward Arnold.
Rosenweig, R. E. 1959 Measurement and characterization of turbulent mixing. Sc.D. thesis, Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts
Rosensweig, R. E., Hottel, H. C. & Williams, G. C. 1961 Smoke-scattered light measurement of turbulent concentration fluctuations. Chem. Eng. Sci. 15, 111.Google Scholar
Saffman, P. G. & Turner, J. S. 1956 J. Fluid Mech. 1, 16.
Smoluchowski, Z. 1926 Kolloid-Chem. Beih. 22, 126.
Van De Hulst, H. C. 1957 Light Scattering by Small Particles. New York: Wiley.
Whytlaw-Gray, R. & Patterson, H. S. 1932 Smoke. London: Edward Arnold.
Williams, G. C. & Becker, H. A. 1963 Tappi, 46, 153A.