Trapping of finite-sized Brownian particles in porous media
نویسنده
چکیده
It is shown that the trapping of finite-sized spherical Brownian particles of radius /3R in a system of interpenetrable spherical traps of radius R is isomorphic to the trapping of “point” Brownian particles (p = 0) in a particular system of interpenetrable spherical traps of radius ( 1 + p> R. This isomorphism in conjunction with previous trapping-rate data for fl= 0 is employed to compute the trapping rate for the case /? = l/4 in a system of hard spherical traps as a function of trap volume fraction. The effect of increasing the size of the Brownian particles is to increase the trapping rate relative to the instance of point Brownian particles.
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تاریخ انتشار 1999