- Author
-
Mountain, R. D.
|
Mulholland, G. W.
- Title
- Light Scattering From Simulated Smoke Agglomerates.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Journal
-
Langmuir,
Vol. 4,
No. 6,
1321-1326,
November/December 1988
- Keywords
-
smoke
|
light scattering
|
agglomerates
- Abstract
- The computer simulation technique of Langevin dynamics is used to simulate the growth of smoke agglomerates. Clusters consisting of between 10 and 700 primary particles are generated, and the light scattering from these clusters is calculated in the Rayleigh-Debye limit. The results of these calculations are then used to illustrate how light-scattering measurements can be used to infer the concentration, the size, the radius of gyration (Rg), and the fractal dimension (fd) of the agglomerates. The pair distribution function for these agglomerates is shown to be a scaled function of r/Rg, and the cutoff function describing large separations of particles in the clusters has the form exp[-c(r/Rg)2.5].