Publications in Scientific Journals:

D. Boffi, L. Gastaldi, M. Ruggeri:
"Mixed formulation for interface problems with distributed Lagrange multiplier";
Computers and Mathematics with Applications, 68 (2014), 12; 2151 - 2166.

English abstract:
We study a mixed formulation for elliptic interface problems which has been recently introduced when dealing with a test problem arising from fluid-structure interaction applications. The formulation, which involves a Lagrange multiplier defined in the solid domain, can be approximated by standard finite elements on meshes which do not need to fit with the interface. In this paper we discuss a modification of the original formulation involving a different approach for the analysis and the numerical implementation of the Lagrange multiplier. New two-dimensional numerical results confirm the good performances of the proposed schemes.

interface problems, finite elements, fluid-structure interaction, Lagrange multiplier

"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)

Created from the Publication Database of the Vienna University of Technology.