Radiation turbulence interactions in pulverized coal flames. Technical progress report, third year, second quarter, December 15, 1995--March 15, 1996 | Zendy

M.P. Menguec | Zendy; J. M. McDonough | Zendy; S. Manickavasagam | Zendy; S. Mukerji | Zendy; S. Swabb | Zendy; S. Ghosal | Zendy

Open Access

Radiation turbulence interactions in pulverized coal flames. Technical progress report, third year, second quarter, December 15, 1995--March 15, 1996

Author(s) -

M.P. Menguec,

J. M. McDonough,

S. Manickavasagam,

S. Mukerji,

S. Swabb,

S. Ghosal

Publication year - 1996

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/418392

Subject(s) - turbulence , diffusion , soot , pulverized coal fired boiler , scattering , turbulent diffusion , volume (thermodynamics) , series (stratigraphy) , statistical physics , spectral density , mechanics , volume fraction , physics , computational physics , optics , thermodynamics , chemistry , mathematics , combustion , statistics , geology , paleontology

In this paper, the authors discuss an experimental and theoretical methodology to characterize soot volume fraction fluctuations in turbulent diffusion flames via chaotic maps. The approach is based on the hypothesis that the fluctuations of properties in turbulent flames is deterministic in nature, rather than statistical. To this extent, the authors measured the time series of soot scattering coefficient in an ethylene diffusion flame from light scattering experiments. Following this, corresponding power spectra and delay maps were calculated. It was shown that if the data were averaged, the characteristics of the fluctuations were almost completely washed out. The psds from experiments were successfully modeled using a series of logistic maps

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