Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5500341 | Physica D: Nonlinear Phenomena | 2017 | 15 Pages |
Abstract
In this paper, we study the vanishing Darcy number limit of the nonlinear Darcy-Brinkman-Oberbeck-Boussinesq system (DBOB). This singular perturbation problem involves singular structures both in time and in space giving rise to initial layers, boundary layers and initial-boundary layers. We construct an approximate solution to the DBOB system by the method of multiple scale expansions. The convergence with optimal convergence rates in certain Sobolev norms is established rigorously via the energy method.
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Mingwen Fei, Daozhi Han, Xiaoming Wang,