TY  - EJOU
AU  - Ricou, Olivier 
AU  - Bercovier, Michel 

TI  - A dimensional reduction of the Stokes problem
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2002
VL  - 3
IS  - 1
SN  - 1526-1506

AB  - In this article, we present a method of reduction of the dimension of the Stokes equations by one in a quasi-cylindrical domain. It takes the special shape of the domain into account by the use of a projection onto a space of polynomials defined over the thickness. The polynomials are defined to fit as well as possible with the variables they approximate. Hence, this method restricted to the first polynomial, recovers the Hele-Shaw approximation. <br/>
The convergence of the approximate solution to the continuous one is shown. Under a regularity hypothesis, we
also obtain error estimates. <br/>
A description of the stiffness matrix is exhibited and
some computations show the acceleration due to this
method. Finally a few numerical results are given.
KW  - dimentionnal reduction
KW  -  Stokes
KW  -  Hele-Shaw

DO  - 10.3970/cmes.2002.003.087