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P1/PO+ elements for incompressible flows with discontinuous material properties

Autor
Oñate, E.; Nadukandi, P.; Idelsohn, Sergio R.
Tipus d'activitat
Article en revista
Revista
Computer methods in applied mechanics and engineering
Data de publicació
2014-04
Volum
271
Pàgina inicial
185
Pàgina final
209
DOI
https://doi.org/10.1016/j.cma.2013.12.009 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0045782513003496 Obrir en finestra nova
Resum
We present a 3-noded triangle and a 4-noded tetrahedra with a continuous linear velocity and a discontinuous linear pressure field formed by the sum of an unknown constant pressure field and a prescribed linear field that satisfies the steady state momentum equations for a constant body force. The elements are termed P1/P0+ as the "effective" pressure field is linear, although the unknown pressure field is piecewise constant within each element. The elements have an excellent behavior for incomp...
Paraules clau
COMPUTATION, CONVECTION, DYNAMICS, Discontinuous material properties, FINITE CALCULUS FORMULATION, FLUID-STRUCTURE INTERACTION, FREE-SURFACE FLOWS, Incompressible flow, MECHANICS, Multifluids, P1/P0+elements, POROUS INTERFACE, SIMULATION, STOKES PROBLEM
Grup de recerca
(MC)2 - UPC Mecànica de Medis Continus i Computacional
GMNE - Grup de Mètodes Numèrics en Enginyeria

Participants