Abstract
A model is given for the inertial deposition of an electrified filter whose fibers are oriented at an angle to the mean direction of flow. When the particle is polarized by the field resulting from a charged or polarized fiber, a fast numerical method for computing the efficiencies is presented for small Stokes numbers. A comparison of the accuracy of this method is made to the usual shooting method. The effective deposition rates due to inertia over a range of fiber orientations are computed. An average value of the effective deposition rate is computed, assuming a uniform distribution of orientations to obtain an approximation to the mean of the deposition rate of a filter having randomly oriented fibers. This average deposition rate is compared to the deposition rate for fibers which are strictly transverse to the mean direction of flow.
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