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4. Ordinary and Partial Differential Equations, Controlled Differential Systems
Dirichlet problem for a fine scale mixture of two highly different conductive materials with interfacial barrier
Dan Polişevschi
Simion Stoilow Institute of Mathematics of the
Romanian Academy, Bucharest, Romania
Abstract:
The paper deals with the asymptotic behavior of heat transfer in a bounded domain formed by two
$\epsilon$-periodically interwoven components, with the magnitudes of the conductivities differing by
$\epsilon^2$. The components might be both connected. At the interface, the heat flux is continuous and the tempera-ture subjects to a first-order jump condition. Using the two-scale convergence technique of the homogenization theory, we determine the macroscopic law when the order of magnitude of the jump transmission coefficient is $\epsilon^r, -1 < r \leq 1$. The homogeneous Dirichlet condition is imposed on the exterior boundary.