Single‐shot CARS thermometry of high‐pressure hydrocarbon flames using simultaneous intensity and linewidth measurements | Zendy

Vereschagin K. A. | Zendy; Smirnov V. V. | Zendy; Stel'makh O. M. | Zendy; Fabelinsky V. I. | Zendy; Clauss W. | Zendy; Oschwald M. | Zendy

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Single‐shot CARS thermometry of high‐pressure hydrocarbon flames using simultaneous intensity and linewidth measurements

Author(s) -

Vereschagin K. A.,

Smirnov V. V.,

Stel'makh O. M.,

Fabelinsky V. I.,

Clauss W.,

Oschwald M.

Publication year - 2010

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.2698

Subject(s) - laser linewidth , spectrograph , rocket (weapon) , laser , optics , interferometry , combustion , raman scattering , intensity (physics) , chemistry , temperature measurement , single shot , analytical chemistry (journal) , raman spectroscopy , materials science , physics , spectral line , thermodynamics , engineering , organic chemistry , chromatography , astronomy , aerospace engineering

We demonstrate the feasibility of single laser shot coherent anti‐Stokes Raman scattering thermometry with simultaneous measurement of intensities of hydrogen Q ‐branch lines and their linewidths in a pulsed CH 4 /O 2 combustion chamber operating at 20 MPa pressure and 3000 K temperature—parameters that are typical for full‐scale rocket engines. The measurements were done by means of a spectrograph combined with an interferometer having orthogonal directions of dispersions. This approach allows correct temperature evaluation that takes into account the directly measured linewidths. Copyright © 2010 John Wiley & Sons, Ltd.

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