Skip to Main Content

Mathematics of Computation

Published by the American Mathematical Society since 1960 (published as Mathematical Tables and other Aids to Computation 1943-1959), Mathematics of Computation is devoted to research articles of the highest quality in computational mathematics.

ISSN 1088-6842 (online) ISSN 0025-5718 (print)

The 2020 MCQ for Mathematics of Computation is 1.78.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Trivariate spline approximations of 3D Navier-Stokes equations
HTML articles powered by AMS MathViewer

by Gerard Awanou and Ming-Jun Lai PDF
Math. Comp. 74 (2005), 585-601 Request permission

Abstract:

We present numerical approximations of the 3D steady state Navier-Stokes equations in velocity-pressure formulation using trivariate splines of arbitrary degree $d$ and arbitrary smoothness $r$ with $r<d$. Using functional arguments, we derive the discrete Navier-Stokes equations in terms of $B$-coefficients of trivariate splines over a tetrahedral partition of any given polygonal domain. Smoothness conditions, boundary conditions and the divergence-free condition are enforced through Lagrange multipliers. The pressure is computed by solving a Poisson equation with Neumann boundary conditions. We have implemented this approach in MATLAB and present numerical evidence of the convergence rate as well as experiments on the lid driven cavity flow problem.
References
Similar Articles
Additional Information
  • Gerard Awanou
  • Affiliation: The Institute for Mathematics and its Applications, University of Minnesota, Minneapolis, Minnesota 55455-0436
  • MR Author ID: 700956
  • Email: awanou@ima.umn.edu
  • Ming-Jun Lai
  • Affiliation: Department of Mathematics, University of Georgia, Athens, Georgia 30602
  • Email: mjlai@math.uga.edu
  • Received by editor(s): July 26, 2002
  • Received by editor(s) in revised form: April 19, 2003
  • Published electronically: September 2, 2004
  • Additional Notes: The second author was supported by the National Science Foundation under grant #EAR-0327577 and the Army Research Office under grant DAAD19-03-1-0203. The author wishes to thank the funding agencies for their generosity.
  • © Copyright 2004 American Mathematical Society
  • Journal: Math. Comp. 74 (2005), 585-601
  • MSC (2000): Primary 65D07, 65D15, 35Q30, 76D05
  • DOI: https://doi.org/10.1090/S0025-5718-04-01715-6
  • MathSciNet review: 2114639