INVESTIGADORES
BATTAGLIA laura
artículos
Título:
Galerkin boundary elements for a computation of the surface tractions in exterior Stokes flows
Autor/es:
D'ELÍA, JORGE; BATTAGLIA, LAURA; CARDONA, ALBERTO; STORTI, MARIO A.; RÍOS RODRÍGUEZ, G.A.
Revista:
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
Editorial:
ASME-AMER SOC MECHANICAL ENG
Referencias:
Lugar: New York; Año: 2014 vol. 136 p. 111102 - 111102
ISSN:
0098-2202
Resumen:
An indirect boundary integral equation for steady Stokes flow around a rigid body in the three-dimensional space is proposed, and is numerically solved by using collocation and Galerkin weighting procedures. The resulting double surface integrals of the Galerkin technique that express the pairwise interaction among all boundary elements, which are quadruple integrals, are computed on flat  simplex triangles using a regularized quadrature scheme. Numerical examples include the steady creeping flow around the sphere of unit radius and the cube of unit edge length, covering issues on the convergence under mesh refinement and stability under small mesh perturbations.