Axisymmetric vortex breakdown part I confined swirling flow

Research output: Contribution to journalArticle

231 Citations (Scopus)

Abstract

A comparison between the experimental visualization and numerical simulations of the occurrence of vortex breakdown in laminar swirling flows produced by a rotating endwall is presented. The experimental visualizations of Escudier (1984) were the first to detect the presence of multiple recirculation zones and the numerical model presented here, consisting of a numerical solution of the unsteady axisymmetric Navier—Stokes equations, faithfully reproduces these phenomena and all other observed characteristics of the flow. Further, the numerical calculations elucidate the onset of oscillatory flow, an aspect of the flow that was not clearly resolved by the flow visualization experiments. Part 2 of the paper examines the underlying physics of these vortex flows.

Original languageEnglish (US)
Pages (from-to)533-552
Number of pages20
JournalJournal of Fluid Mechanics
Volume221
DOIs
StatePublished - 1990
Externally publishedYes

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vortex breakdown
Swirling flow
swirling
Vortex flow
Visualization
Flow visualization
Numerical models
Physics
flow visualization
Computer simulation
Experiments
occurrences
vortices
physics
simulation

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics

Cite this

Axisymmetric vortex breakdown part I confined swirling flow. / Lopez, Juan.

In: Journal of Fluid Mechanics, Vol. 221, 1990, p. 533-552.

Research output: Contribution to journalArticle

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