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. Author manuscript; available in PMC: 2013 May 30.

Published in final edited form as: Aerosol Sci Technol. 2012 Mar;46(3):347–353. doi: 10.1080/02786826.2011.631956

The asymptotic (a) fractal dimension D_f and (b) prefactor k_n of 500 agglomerates as a function of the geometric standard deviation, σ_g, of their primary particles (PP) for different collision or agglomeration mechanisms. At σ_g = 1 (monodisperse PP) the classic D_f of the corresponding structures are obtained. With increasing σ_g, the D_f decreases gradually reaching asymptotically ≈ 1.5 (a) and k_n ≈ 1 (b) at σ_g = 3, nearly independent of agglomeration mechanism.

The asymptotic (a) fractal dimension D_f and (b) prefactor k_n of 500 agglomerates as a function of the geometric standard deviation, σ_g, of their primary particles (PP) for different collision or agglomeration mechanisms. At σ_g = 1 (monodisperse PP) the classic D_f of the corresponding structures are obtained. With increasing σ_g, the D_f decreases gradually reaching asymptotically ≈ 1.5 (a) and k_n ≈ 1 (b) at σ_g = 3, nearly independent of agglomeration mechanism.