Implementation of Finite Element Methods for Navier-Stokes Equations (SPRINGER SERIES IN COMPUTATIONAL PHYSICS)

Thomasset, Fran-Cois

ISBN 10: 0387107711 / ISBN 13: 9780387107714

Published by Springer-Verlag, 1981

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Bibliographic Details

• Title: Implementation of Finite Element Methods for Navier-Stokes Equations (SPRINGER SERIES IN COMPUTATIONAL PHYSICS)
• Publisher: Springer-Verlag
• Publication Date: 1981
• Language: English
• ISBN 10: 0387107711
• ISBN 13: 9780387107714
• Binding: Hardcover
• Condition: Good

About this title

Synopsis

In structure mechanics analysis, finite element methods are now well estab­ lished and well documented techniques; their advantage lies in a higher flexibility, in particular (i) The representation of arbitrary complicated boundaries; (ii) Systematic rules for the developments of stable numerical schemes ap­ proximating mathematically wellposed problems, with various types of boundary conditions. On the other hand, compared to finite difference methods, this flexibility is paid an increased programming complexity; additional storage require­ ment. The application of finite element methods to fluid mechanics has been lagging behind and is relatively recent for several types of (i) Historical the early methods were invented by engineers for the analysis of torsion, flexion deformation of bearns, plates, shells, etc ... (see the historics in Strang and Fix (1972) or Zienckiewicz (1977». (ii) Technical fluid flow problems present specific strong gradients,l of the velocity or temperature for instance, may occur which a finite mesh is unable to properly represent; a remedy lies in the various upwind finite element schemes which recently turned up, and which are reviewed in chapter 2 (yet their effect is just as controversial as in finite differences). Next, waves can propagate (e.g. in ocean dynamics with shallowwaters equations) which will be falsely distorted by a finite non regular mesh, as Kreiss (1979) pointed out. We are concerned in this course with the approximation of incompressible, viscous, Newtonian fluids, i.e. governed by N avier Stokes equations.