A generalized neumann solution for the two-phase fractional lame-clapeyron-stefan problem

Abstract

We obtain a generalized Neumann solution for the two-phase fractional Lam´eClapeyron-Stefan problem for a semi-infinite material with constant boundary and initial conditions. In this problem, the two governing equations and a governing condition for the free boundary include a fractional time derivative in the Caputo sense of order 0 < α ≤ 1. When α ↗ 1 we recover the classical Neumann solution for the two-phase Lam´eClapeyron-Stefan problem given through the error function