A study of penalty elements for incompressible laminar flows
作者:
Gouri Dhatt,
Guy Hubert,
期刊:
International Journal for Numerical Methods in Fluids
(WILEY Available online 1986)
卷期:
Volume 6,
issue 1
页码: 1-19
ISSN:0271-2091
年代: 1986
DOI:10.1002/fld.1650060102
出版商: John Wiley&Sons, Ltd
数据来源: WILEY
摘要:
AbstractA finite element model is developed based on the penalty formulation to study incompressible laminar flows. The study includes a number of new quadrilateral and triangular elements for 2‐dimensional flows and a number of new hexahedral and tetrahedral elements for 3‐dimensional flows. All elements employ continuous velocity approximations and discontinuous pressure approximations respecting the LBB condition of numerical instability. An incremental Newton–Raphson method coupled with the Broyden method is used to solve the non‐linear equations. Several numerical examples (colliding flow, cavity flow, etc.) are presented to assess the efficiency of e
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