Abstract
We formulate a Brownian-motion simulation technique to compute exactly the effective conductivity of general continuum (off-lattice) models of n-phase heterogeneous media having phase conductivities 1,...,n, where can be finite or infinite. The appropriate first-passage-time equations at the multiphase interface are derived to reduce significantly the computation time. The method is illustrated by calculating for regular and random arrays of d-dimensional, nonoverlapping spheres (d=2 and 3) for a wide range of conductivity ratios (including perfectly insulating and superconducting particles) and volume fractions.
Original language | English (US) |
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Pages (from-to) | 3198-3201 |
Number of pages | 4 |
Journal | Physical Review A |
Volume | 43 |
Issue number | 6 |
DOIs | |
State | Published - 1991 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics