Test of static structure factors for describing light scattering from fractal soot aggregates
- Kansas State Univ., Manhattan, KS (United States)
The authors compare several static structure factors for light scattering from fractal aggregates. The variation between these structure factors is a result of different cutoff functions for the cluster density correlation function. Light scattering data obtained from soot aggregates in a premixed CH{sub 4}/O{sub 2} flame are fit with three respresentative structure factors. Fractal dimensions determined from these fits under the assumptions of a monodisperse size distribution are all unsatisfactory. Inclusion of a scaling cluster size distribution yields good fits to structure factors derived from correlation functions with cutoffs faster than exponential, the exponential structure factor yielding a poor fit. A Gaussian cutoff was found to work the best. 18 refs., 7 figs., 1 tab.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 391269
- Journal Information:
- Langmuir, Vol. 8, Issue 8; Other Information: PBD: Aug 1992
- Country of Publication:
- United States
- Language:
- English
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