A note on the uniform inf-sup condition for the Brinkman problem in highly heterogeneous media

Autor: Aziz Takhirov, Raytcho D. Lazarov
Rok vydání: 2018
Předmět:
Zdroj: Journal of Computational and Applied Mathematics. 340:537-545
ISSN: 0377-0427
DOI: 10.1016/j.cam.2017.11.037
Popis: In this short note we study the interpolation spaces based uniform inf-sup condition for Brinkman equation in highly heterogeneous domains. The result is known to hold in the case of a uniform constant permeability. Our numerical construction and experiments show that it is not true for the Taylor-Hood and the Mini elements applied to problems with highly heterogeneous coefficients.
Databáze: OpenAIRE