Abstract

A new technique has been developed that permits simultaneous two-dimensional mapping of two scalar components (e.g., species and temperature) in a turbulent reacting flow. The technique uses two optical multichannel analyzers, each of which detects light scattered by a different mechanism (e.g., Rayleigh and Raman) and thus provides different information. The technique has been applied to both premixed and nonpremixed flames, and results are reported for each. The simultaneous information obtained in these experiments should provide new data on the interaction of turbulence and combustion in these chemically reacting flows.

© 1985 Optical Society of America

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References

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  1. M. B. Long, B.-T. Chu, R. K. Chang, AIAA J. 19, 1151 (1981);A. J. R. Lysaght, R. W. Bilger, J. H. Kent, Combust. Flame 46, 105 (1982).
    [CrossRef]
  2. M. C. Escoda, M. B. Long, AIAA J. 21, 81 (1983);D. C. Fourguette, R. M. Zurn, M. B. Long, Combust. Sci. Technol. (to be published).
    [CrossRef]
  3. M. Alden, H. Edner, G. Holmsted, S. Svanberg, T. Hoegberg, Appl. Opt. 21, 1236 (1982);M. J. Dyer, D. R. Crosley, Opt. Lett. 7, 382 (1982);G. Kychakoff, R. D. Howe, R. K. Hanson, J. C. McDaniel, Appl. Opt. 21, 3225 (1982).
    [CrossRef] [PubMed]
  4. M. B. Long, D. C. Fourguette, M. C. Escoda, C. B. Layne, Opt. Lett. 8, 244 (1983);B. F. Webber, M. B. Long, R. K. Chang, Appl. Phys. Lett. 35, 119 (1979).
    [CrossRef] [PubMed]
  5. T. Takagi, H. D. Shin, A. I. Shio, Combust. Flame 41, 261 (1981).
    [CrossRef]
  6. K. C. Miller, J. W. Lavasek, E. D. Jones, Appl. Opt. 21, 1764 (1982).
    [CrossRef] [PubMed]
  7. M. Lapp, in Laser Probes for Combustion Chemistry (ACS Symposium Series No. 134), D. R. Crosley, ed. (American Chemical Society, Washington, D.C., 1980), pp. 207–230;M. Lapp, C. M. Penney, eds., Laser Raman Gas Diagnostics (Plenum, New York, 1974);L.-R. Sochet, M. Lucquin, M. Bridoux, M. Crunelle-Cras, F. Grase, M. Delhaye, Combust. Flame 36, 109 (1979).
    [CrossRef]
  8. R. W. Dibble, R. E. Hollenbach, in Eighteenth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), pp. 1489–1499.
    [CrossRef]
  9. R. W. Dibble, M. B. Long, A. Masri, “Two-dimensional imaging of C2 in turbulent nonpremixed jet flames,” to be presented at the Tenth International Colloqium on the Dynamics of Explosives and Reactive Systems, Berkeley, Calif., August 4–9, 1985.

1983 (2)

M. C. Escoda, M. B. Long, AIAA J. 21, 81 (1983);D. C. Fourguette, R. M. Zurn, M. B. Long, Combust. Sci. Technol. (to be published).
[CrossRef]

M. B. Long, D. C. Fourguette, M. C. Escoda, C. B. Layne, Opt. Lett. 8, 244 (1983);B. F. Webber, M. B. Long, R. K. Chang, Appl. Phys. Lett. 35, 119 (1979).
[CrossRef] [PubMed]

1982 (2)

1981 (2)

M. B. Long, B.-T. Chu, R. K. Chang, AIAA J. 19, 1151 (1981);A. J. R. Lysaght, R. W. Bilger, J. H. Kent, Combust. Flame 46, 105 (1982).
[CrossRef]

T. Takagi, H. D. Shin, A. I. Shio, Combust. Flame 41, 261 (1981).
[CrossRef]

Alden, M.

Chang, R. K.

M. B. Long, B.-T. Chu, R. K. Chang, AIAA J. 19, 1151 (1981);A. J. R. Lysaght, R. W. Bilger, J. H. Kent, Combust. Flame 46, 105 (1982).
[CrossRef]

Chu, B.-T.

M. B. Long, B.-T. Chu, R. K. Chang, AIAA J. 19, 1151 (1981);A. J. R. Lysaght, R. W. Bilger, J. H. Kent, Combust. Flame 46, 105 (1982).
[CrossRef]

Dibble, R. W.

R. W. Dibble, R. E. Hollenbach, in Eighteenth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), pp. 1489–1499.
[CrossRef]

R. W. Dibble, M. B. Long, A. Masri, “Two-dimensional imaging of C2 in turbulent nonpremixed jet flames,” to be presented at the Tenth International Colloqium on the Dynamics of Explosives and Reactive Systems, Berkeley, Calif., August 4–9, 1985.

Edner, H.

Escoda, M. C.

M. C. Escoda, M. B. Long, AIAA J. 21, 81 (1983);D. C. Fourguette, R. M. Zurn, M. B. Long, Combust. Sci. Technol. (to be published).
[CrossRef]

M. B. Long, D. C. Fourguette, M. C. Escoda, C. B. Layne, Opt. Lett. 8, 244 (1983);B. F. Webber, M. B. Long, R. K. Chang, Appl. Phys. Lett. 35, 119 (1979).
[CrossRef] [PubMed]

Fourguette, D. C.

Hoegberg, T.

Hollenbach, R. E.

R. W. Dibble, R. E. Hollenbach, in Eighteenth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), pp. 1489–1499.
[CrossRef]

Holmsted, G.

Jones, E. D.

Lapp, M.

M. Lapp, in Laser Probes for Combustion Chemistry (ACS Symposium Series No. 134), D. R. Crosley, ed. (American Chemical Society, Washington, D.C., 1980), pp. 207–230;M. Lapp, C. M. Penney, eds., Laser Raman Gas Diagnostics (Plenum, New York, 1974);L.-R. Sochet, M. Lucquin, M. Bridoux, M. Crunelle-Cras, F. Grase, M. Delhaye, Combust. Flame 36, 109 (1979).
[CrossRef]

Lavasek, J. W.

Layne, C. B.

Long, M. B.

M. B. Long, D. C. Fourguette, M. C. Escoda, C. B. Layne, Opt. Lett. 8, 244 (1983);B. F. Webber, M. B. Long, R. K. Chang, Appl. Phys. Lett. 35, 119 (1979).
[CrossRef] [PubMed]

M. C. Escoda, M. B. Long, AIAA J. 21, 81 (1983);D. C. Fourguette, R. M. Zurn, M. B. Long, Combust. Sci. Technol. (to be published).
[CrossRef]

M. B. Long, B.-T. Chu, R. K. Chang, AIAA J. 19, 1151 (1981);A. J. R. Lysaght, R. W. Bilger, J. H. Kent, Combust. Flame 46, 105 (1982).
[CrossRef]

R. W. Dibble, M. B. Long, A. Masri, “Two-dimensional imaging of C2 in turbulent nonpremixed jet flames,” to be presented at the Tenth International Colloqium on the Dynamics of Explosives and Reactive Systems, Berkeley, Calif., August 4–9, 1985.

Masri, A.

R. W. Dibble, M. B. Long, A. Masri, “Two-dimensional imaging of C2 in turbulent nonpremixed jet flames,” to be presented at the Tenth International Colloqium on the Dynamics of Explosives and Reactive Systems, Berkeley, Calif., August 4–9, 1985.

Miller, K. C.

Shin, H. D.

T. Takagi, H. D. Shin, A. I. Shio, Combust. Flame 41, 261 (1981).
[CrossRef]

Shio, A. I.

T. Takagi, H. D. Shin, A. I. Shio, Combust. Flame 41, 261 (1981).
[CrossRef]

Svanberg, S.

Takagi, T.

T. Takagi, H. D. Shin, A. I. Shio, Combust. Flame 41, 261 (1981).
[CrossRef]

AIAA J. (2)

M. B. Long, B.-T. Chu, R. K. Chang, AIAA J. 19, 1151 (1981);A. J. R. Lysaght, R. W. Bilger, J. H. Kent, Combust. Flame 46, 105 (1982).
[CrossRef]

M. C. Escoda, M. B. Long, AIAA J. 21, 81 (1983);D. C. Fourguette, R. M. Zurn, M. B. Long, Combust. Sci. Technol. (to be published).
[CrossRef]

Appl. Opt. (2)

Combust. Flame (1)

T. Takagi, H. D. Shin, A. I. Shio, Combust. Flame 41, 261 (1981).
[CrossRef]

Opt. Lett. (1)

Other (3)

M. Lapp, in Laser Probes for Combustion Chemistry (ACS Symposium Series No. 134), D. R. Crosley, ed. (American Chemical Society, Washington, D.C., 1980), pp. 207–230;M. Lapp, C. M. Penney, eds., Laser Raman Gas Diagnostics (Plenum, New York, 1974);L.-R. Sochet, M. Lucquin, M. Bridoux, M. Crunelle-Cras, F. Grase, M. Delhaye, Combust. Flame 36, 109 (1979).
[CrossRef]

R. W. Dibble, R. E. Hollenbach, in Eighteenth Symposium (International) on Combustion (Combustion Institute, Pittsburgh, Pa., 1981), pp. 1489–1499.
[CrossRef]

R. W. Dibble, M. B. Long, A. Masri, “Two-dimensional imaging of C2 in turbulent nonpremixed jet flames,” to be presented at the Tenth International Colloqium on the Dynamics of Explosives and Reactive Systems, Berkeley, Calif., August 4–9, 1985.

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Figures (3)

Fig. 1
Fig. 1

Experimental configuration used for making simultaneous concentration and temperature measurements in turbulent flames. Light scattered from an illuminated sheet is collected by a single lens. A portion of the scattered light is split off and focused onto a SIT vidicon detector, which detects the Rayleigh scattering. The undeviated portion of the beam is passed through an interference filter, which passes the Raman wavelength of the species of interest, and the Raman light is focused onto an ISIT vidicon.

Fig. 2
Fig. 2

Two pairs of concentration and temperature distributions obtained from a turbulent nonpremixed flame. The lower part of the figure shows the concentration of CH4 obtained from two different laser shots by Raman scattering, and the upper portion shows the corresponding temperature distributions for the same two shots obtained from Rayleigh scattering. The region imaged is from 4.9 to 9.9 jet diameters downstream. The gray scales represent a linear range of concentration and temperature from zero (darkest) to the maximum values (lightest).

Fig. 3
Fig. 3

Two pairs of concentration and temperature distributions from a turbulent premixed flame. CH4 concentrations are shown in the lower part of the figure, and the corresponding temperature distributions are shown above. Different concentration and temperature levels are indicated by different shades, with the lighter regions corresponding to areas of higher concentration and temperature. The region imaged is from 4.2 to 5.8 jet diameters downstream.

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