Journal of the Korean Society for Industrial and Applied Mathematics
- 제3권2호
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- Pages.51-67
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- 1999
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- 1226-9433(pISSN)
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- 1229-0645(eISSN)
NUMERICAL SOLUTION OF A CONSTRICTED STEPPED CHANNEL PROBLEM USING A FOURTH ORDER METHOD
- Mancera, Paulo F. de A. (Departamento de Bioestatistica Instituto de Biociencias-UNESP) ;
- Hunt, Roland (Department of Mathematics University of Strathclyde)
- 발행 : 1999.12.31
초록
The numerical solution of the Navier-Stokes equations in a constricted stepped channel problem has been obtained using a fourth order numerical method. Transformations are made to have a fine grid near the sharp corner and a long channel downstream. The derivatives in the Navier-Stokes equations are replaced by fourth order central differences which result a 29-point computational stencil. A procedure is used to avoid extra numerical boundary conditions near the solid walls. Results have been obtained for Reynolds numbers up to 1000.