Abstract

Particle trajectories and collection efficiencies are predicted for the collection of fine, inertialess, charged particles on a single elliptical-cylinder or ribbon collector in a gaseous flow field under the influence of electrical forces and gravitation. The two electrical forces considered are the coulombic-type force with a charged collector combined with the force due to a uniform external electric field directed at an arbitrary angle to the flow. Theory indicates the method of solution to be independent of the shape of the cylindrical collector. For any given collector geometry, results show that, under many conditions, the collection efficiency and deposition density are the same for a wide variety of stationary incompressible flows. With the coulombic force alone, particle collection is independent of both collector geometry and the flow field.

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