Abstract
An analytical model is established to predict an electrostatically charged particle deposition as a function of particle size in fully-developed turbulent pipe flow. The convectivediffusion flux equation is solved for the particle concentration as a function of the wall coordinate. The deposition velocities are determined from the calculated concentration gradients and particle coasting velocities in the viscous sublayer. The electrostatic convection is included as an electrostatic migration term in the basic convective-migration equation, which consists of Brownian diffusion, turbulent eddy diffusion and gravitational convection. The resulting modified equation has been solved in two different ways: 1) a linear superposition, and 2) analytical/numerical integration. Calculations were repeated to inspect the solution (deposition rate) dependence on the relevant parameters including particle diameter, flow rate, tube diameter, and gas Reynolds number.
Ko, Hanseo (1994). Development of analytical and numerical models predicting the deposition rate of electrically charged particles in turbulent channel flows. Master's thesis, Texas A&M University. Available electronically from
https : / /hdl .handle .net /1969 .1 /ETD -TAMU -1994 -THESIS -K75.