Numerical treatment of fractional heat equations

摘要

This paper is devoted to the numerical treatment of some fractional extensions of the temperature field problem in oil strata. Based on the Griinwald-Letnikov's definition of a fractional derivative, finite difference schemes for the approximation of the solution are discussed. By means of them the fractional heat equation is solved. The main properties of the explicit and implicit numerical methods developed, related to stability, convergence and error behaviour are also studied. Stability conditions as extensions of the CLF condition are derived and numerical experiments are provided.