Limitations of the Boundary-Layer Equations for Predicting Laminar Symmetric Sudden Expansion Flows-Reference-Cited by-同舟云学术

Limitations of the Boundary-Layer Equations for Predicting Laminar Symmetric Sudden Expansion Flows

Published:1986-06-01 Issue:2 Volume:108 Page:208-213
ISSN:0098-2202
Container-title:Journal of Fluids Engineering
language:en
Short-container-title:

Author:

Lewis J. P.¹,Pletcher R. H.¹

Affiliation:

1. Department of Mechanical Engineering and Computational Fluid Dynamics Center, Iowa State University, Ames, Iowa 50011

Abstract

A finite-difference solution scheme is used to study the limitations and capabilities of the boundary-layer equation model for flow through abrupt, symmetric expansions. Solutions of the boundary-layer equations are compared with previous numerical predictions and experimental measurements. Some flow parameters are not well predicted for Reynolds numbers below 200. Global iteration over the flow field to include upstream effects does not significantly influence the predictions. Axisymmetric and two-dimensional flows are investigated. The effect of initial conditions is discussed

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/fluidsengineering/article-pdf/108/2/208/5898948/208_1.pdf

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