Numerical Simulation of Scavenging of Small Particles by Charged Droplets
| Autor: | Anatol Jaworek, Wamadeva Balachandran, Kazimierz Adamiak, Andrzej Krupa, P. Castle, W. Machowski |
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| Rok vydání: | 2002 |
| Předmět: |
Physics
Inertial frame of reference Equations of motion Mechanics Pollution Charged particle Physics::Fluid Dynamics Gravitation Classical mechanics Physics::Atomic and Molecular Clusters Coulomb Environmental Chemistry Particle General Materials Science Trajectory (fluid mechanics) Magnetosphere particle motion |
| Zdroj: | Aerosol Science and Technology. 36:913-924 |
| ISSN: | 1521-7388 0278-6826 |
| DOI: | 10.1080/02786820290092104 |
| Popis: | The trajectories of fine aerosol particles in the vicinity of a free falling collector droplet and their deposition on it were investigated numerically by solving the equations of motion of the particle and the droplet in quiescent air. The droplet was assumed to be charged to one half of the Rayleigh limit. The Coulomb, image, Stokes, inertial, and gravitational forces acting upon the particle near the droplet were taken into consideration in the equations of motion. The equations of the droplet motion were also incorporated into the set of equations including the Coulomb and image forces on the droplet due to the particle charge. The flow field in the vicinity of the droplet was determined by numerical solution of the Navier-Stokes equations. The equations of particle motion were solved in threedimensional (3-D) space by the Runge-Kutta method of the fourth order. The collection efficiency of the particles on the droplet was determined by searching the limiting trajectory within the entire space. The re... |
| Databáze: | OpenAIRE |
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