Imaging hydrogen flames by two-photon, laser-induced fluorescence
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1991, American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Hydrogen-air diffusion flames are of interest due to their theoretical simplicity and their application to practical combustion systems. 1,2 In an effort to aid in the understanding of these flame structures, we have developed a new non-intrusive, multi-component imaging system which is capable of simultaneously observing hydrogen, hot oxygen, and air. The images produced are frozen in time and show details of the turbulent hydrogen core jet, the combustion zone, and the surrounding air. From numerous such images, spatial correlations can be constructed to give the scale and orientation of turbulent structure and show the coupling between density fluctuations in the core and motion of the flame front.
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22nd Fluid Dynamics, Plasma Dynamics and Lasers Conference
