On Approximation and Computation of Navier-Stokes Flow

On Approximation and Computation of Navier-Stokes Flow

Year:    2013

Author:    Werner Varnhorn, Florian Zanger

Journal of Partial Differential Equations, Vol. 26 (2013), Iss. 2 : pp. 151–171

Abstract

We present an approximation method for the non-stationary nonlinear incompressible Navier-Stokes equations in a cylindrical domain (0,T)×G,where G⊂R^3 is a smoothly bounded domain. Ourmethod is applicable to general three-dimensional flow without any symmetry restrictions and relies on existence, uniqueness and representation results from mathematical fluid dynamics. After a suitable time delay in the nonlinear convective term v·∇v we obtain globally (in time) uniquely solvable equations, which - by using semi-implicit time differences - can be transformed into a finite number of Stokes-type boundary value problems. For the latter a boundary element method based on a corresponding hydrodynamical potential theory is carried out. The method is reported in short outlines ranging from approximation theory up to numerical test calculations.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/jpde.v26.n2.5

Journal of Partial Differential Equations, Vol. 26 (2013), Iss. 2 : pp. 151–171

Published online:    2013-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    21

Keywords:    Navier-Stokes equations

Author Details

Werner Varnhorn

Florian Zanger