Diffusion spreadability as a probe of the microstructure of complex media across length scales

  title={Diffusion spreadability as a probe of the microstructure of complex media across length scales},
  author={Salvatore Torquato},
  journal={Physical Review E},
  • S. Torquato
  • Published 20 September 2021
  • Physics
  • Physical Review E
Understanding time-dependent diffusion processes in multiphase media is of great importance in physics, chemistry, materials science, petroleum engineering and biology. Consider the timedependent problem of mass transfer of a solute between two phases and assume that the solute is initially distributed in one phase (phase 2) and absent from the other (phase 1). We desire the fraction of total solute present in phase 1 as a function of time, S(t), which we call the spreadability, since it is a… Expand


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