Author
Anaya, V
Mora, D
Reales, C
Ruiz-Baier, R
Journal title
NUMERICAL METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS
DOI
10.1002/num.22312
Issue
2
Volume
35
Last updated
2019-09-04T00:31:46.94+01:00
Page
528-544
Abstract
© 2018 Wiley Periodicals, Inc. We introduce a new variational formulation for the Brinkman-Darcy equations formulated in terms of the scaled Brinkman vorticity and the global pressure. The velocities in each subdomain are fully decoupled through the momentum equations, and can be later recovered from the principal unknowns. A new finite element method is also proposed, consisting in equal-order Nédélec and piecewise continuous elements, for vorticity and pressure, respectively. The error analysis for the scheme is carried out in the natural norms, with bounds independent of the fluid viscosity. An adequate modification of the formulation and analysis permits us to specify the presentation to the case of axisymmetric configurations. We provide a set of numerical examples illustrating the robustness, accuracy, and efficiency of the proposed discretization.
Symplectic ID
894245
Download URL
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000459619600005&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=4fd6f7d59a501f9b8bac2be37914c43e
Publication type
Journal Article
Publication date
March 2019
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