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Engineering Mathematics
Review of Viscous Flows
Review of Computational Fluid Mechanics
Review of Turbulence and Turbulence Modeling

Particle Adhesion
Colloids
Simulation Methods
Experimental Techniques
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The National Science Foundation
ME 637 The National Science Foundation
 Aerosols
Introduction to Aerosols | Drag, Lift Forces | Aerosol Kinetics | Virtual Mass, Basset Forces & BBO Equation | Nonspherical Particles | Brownian Motions | Particle Deposition Mechanisms | Electrodynamics | Aerosol Coagulation |

Particle Deposition Mechanisms: Impaction

Impaction of Non-Stokesian Particles

The equation of motion of a particle is given as

(10)

where

(11)

and  is a drag coefficient. Equation (10) may be restated in non-dimensional form as

(12)

Numerical solutions for inviscid flows around cylinders and spheres were obtained by Brun et al. (1955) and Dorsch et al. (1955). The results depend on Stk and parameter P given as

(13)

where the particle Reynolds number is defined as

(14)

Variations of capture efficiency with Stokes number for different values of P were given by Frielander (2000). See also Figure 1 (next page).



Dr. Goodarz Ahmadi | Turbulence & Multiphase Fluid Flow Laboratory | Department of Mechanical & Aeronautical Engineering
Copyright © 2002-2005 Dr. Goodarz Ahmadi. All rights reserved.
Potsdam, New York, 13699
ahmadi@clarkson.edu