Universal scaling for diffusion-controlled reactions among traps
نویسندگان
چکیده
The determination of the mean survival time t ~i.e., inverse reaction rate! associated with diffusion-controlled reactions among static traps is a problem of long-standing interest, dating back to the classical work of Smoluchkowski. For the broad class of model particulateand digitized-based models considered here, we find a universal curve for the mean survival time t for a wide range of porosities. The functional form of this universal scaling relation is motivated by rigorous bounds on t and is expressible as a simple function of porosity, specific surface, and mean pore size. © 1997 American Institute of Physics. @S0021-9606~97!50321-7#
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