Quantitative Two-Photon LIF Imaging of CO in Flickering CH4/Air Diffusion Flames.
Quantitative Two-Photon LIF Imaging of CO in Flickering
CH4/Air Diffusion Flames.
Everest, D. A.; Shaddix, C. R.; Smyth, K. C.
Combustion Institute/Eastern States Section. Chemical
and Physical Processes in Combustion. Proceedings.
Fall Technical Meeting, 1995. October 16-18, 1995,
Worcester, MA, 71-74 pp, 1995.
combustion; carbon monoxide; diffusion flames;
flickering flames; fluorescence; methane; polycyclic
aromatic hydrocarbons; soot
Most detailed studies of chemical processes in diffusion
flames have been carried out under steady flame
conditions, which provide an experimentally reproducible
environment for making careful profile measurements. In
contrast, flickering diffusion flames exhibit a much
wider range of time-dependent, vortex-flamesheet
interactions, and thus they serve as an important
testing ground for assessing the applicability of
chemical models derived from steady flames to complex,
turbulent flows. Two examples of particular interest
are the production and oxidation of soot and CO. Both
involve sufficiently slow chemical rates that one might
expect to observe a strong sensitivity to the complex
flowfields present in time-varying flames.