Application of laser velocimetry for characterization of confined swirling flow

A. S. Nejad, S. P. Vanka, S. C. Favaloro, M. Samimy, C. Langenfeld

Research output: Contribution to journalArticle

Abstract

A two-component LDVwas used in a cold flow dump combustor model to obtain detailed mean and turbulence data for both swirling and nonswirling inlet flows. Large samples were collected to resolve the second and third-order products of turbulent fluctuations with good accuracy. Particle interarrival time weighting was used to remove velocity bias from the data. The swirling flows, with and without vortex breakdown, exhibited significantly different mean flow and turbulent field behavior. A numerical scheme with the k-e closure model was used to predict the flow fields. Comparison of the numerical and experimental results showed that the k-e turbulence model is inadequate in representing the complex turbulent structure of confined swirling flows.

Original languageEnglish (US)
Pages (from-to)36-45
Number of pages10
JournalJournal of Engineering for Gas Turbines and Power
Volume111
Issue number1
DOIs
StatePublished - Jan 1989
Externally publishedYes

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ASJC Scopus subject areas

  • Nuclear Energy and Engineering
  • Fuel Technology
  • Aerospace Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

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