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Development of the new approach to the Brownian coagulation theory: Transition regime


The new approach for calculation of the collision frequency function in the two limiting regimes (continuous and free molecular) proposed in the previous paper [1] is extended to the general case including the intermediate transition regime. The collision frequency function in the transition regime is numerically calculated without using semi-empirical assumptions (from the literature). The best fit to the numerically calculated points can be attained with the new interpolation formulas that have a simpler form and higher accuracy in comparison with the semi-empirical models.

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Correspondence to M. S. Veshchunov.

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Azarov, I.B., Veshchunov, M.S. Development of the new approach to the Brownian coagulation theory: Transition regime. J. Engin. Thermophys. 19, 128–137 (2010).

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  • Brownian Particle
  • Transition Regime
  • Interpolation Formula
  • Kinetic Regime