Stokes flow around an asymmetric channel divider; a computational approach using Matlab

Anthony M. J. Davis and Joseph D. Fehribach
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Anthony M. J. Davis: University of Alabama, Mathematics Department
Joseph D. Fehribach: Worcester Polytechnic Institute, Mathematical Sciences Department

A chapter in Practical Asymptotics, 2001, pp 207-220 from Springer

Abstract: Abstract While computational methods for solving Stokes-flow problems have existed for some time, these have depended on specialized codes developed specifically, for this type of problem. This work shows how to combine traditional applied mathematics and a modern over-the-counter software package Matlab to solve and study Stokes flow in a channel with a splitter plate. Specifically exact unidirectional flow solutions are used as a basis for choosing boundary conditions for Matlab to anticipate the boundary conditions of a Stokes flow. A method for selecting zeroth and first-order approximate boundary conditions is presented, along with a suggestion for finding a second-order approximation. It is also shown that small errors made in choosing the approximate boundary conditions do not grow as one moves away from the boundary into the interior of the flow. Finally several computational examples using this approach are presented.

Keywords: Stokes flow; biharmonic equation; eigenfunction expansions; numerical computations (search for similar items in EconPapers)
Date: 2001
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-94-010-0698-9_11

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DOI: 10.1007/978-94-010-0698-9_11

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