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Hybrid Methods in Engineering

Modeling, Programming, Analysis, Animation

ISSN for PRINT: 1099-2391

Institutional price:	$396.00
Issues per year:	4

Best Paper Award Selection - Editorial Board Site

2001, Volume3

148 pages

Issue price - $250.00

A STUDY OF THE EFFECTS OF UNIFORM ENTRANCES ON THE BEHAVIOR OF A STRATIFIED FLOW OVER A BACKWARD-FACING STEP SOLVED BY THE INTEGRAL TRANSFORM TECHNIQUE

Rogerio Ramos
Mechanical Engineering Department, Federal University of Espirito Santo, Brazil

Jesus Salvador Perez Guerrero
Coordenacao de Rejeitos, COREJ, Comissao Nacional de Energia Nuclear/MCT - Brazilian Nuclear Energy Commission, Rua General Severiano 90 — CEP 22294-900, Rio de Janeiro, Brazil

ABSTRACT

The generalized integral transform technique (GITT) is employed in the hybrid numerical-analytical solution of a modified stratified backward-facing step flow problem, which presents uniform profiles for the hydrodynamic and thermal boundary conditions at the entrance of the channel and an automatic global accuracy control toward a user-prescribed accuracy target. The present article is aimed at extending the available database of benchmark results in heat and fluid flow progressively obtained through integral transforms, for the covalidation of more flexible fully discrete approaches. Numerical results are presented for the same physical parameters of the situations frequently encountered in the literature and are compared with them.