首页 | 本学科首页   官方微博 | 高级检索  
     


Nonfickian effect in time and space for diffusion processes
Authors:José A. Ferreira  Gonçalo Pena
Affiliation:CMUC, Department of MathematicsUniversity of Coimbra
Abstract:Diffusion processes are usually simulated using the classical diffusion equation. In certain scenarios, such equation induces anomalous behavior and consequently several improvements were introduced in the literature to overcome them. One of the most popular was the replacement of the diffusion equation by an integro‐differential equation. Such equation can be established considering a modification of Fick's mass flux where a delay in time is introduced. In this article, we consider mathematical models for diffusion processes that take into account a memory effect in time and space. © 2015 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 31: 1589–1602, 2015
Keywords:concentration  coupled problem  diffusion equation  Fick's law  infinite speed  integro‐differential equation  mass flux  parabolic equation
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号