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Engineering Mathematics
Review of Viscous Flows
Review of Computational Fluid Mechanics

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ME 537 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 |

Aerosol Kinetics

Particle Path

For constant fluid velocity, integrating Equation 5, the position of the particle is given by

(11)

Here is the initial position of the particle. For a particle starting from rest, when the fluid velocity is in the x-direction and gravity is in the negative y-direction Equation 10 reduces to

Calculation Model

Particle Path

Particle Path


(12)

(13)

where the ration of the terminal velocity to the fluid velocity α is given by

(14)

From Equations 12 and 13, it follows that
(15)

That is the particle paths are straight lines. Figure 3 shows sample particle trajectories.



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