Characterisation of barrel swirl motion under steady flow conditions

P. Baker, Stephen F. Benjamin, N.S. Girgis, A.W. Newman, W.A. Seeley

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Abstract

The purpose of this paper is to characterise the flow field through the inlet valves, and tumble to swirl conversion tube of a steady state flow rig using HWA. LDA and CFD techniques. Three cylinder head configurations were developed which were found to produce three levels of barrel swirl motion. The swirl precesses around the central core of the conversion tube at all degrees of swirl. Varying degrees of swirl produced differing axial velocity profiles, and flow reversal occurred in the central core of the conversion tube for the high swirling case. The results obtained for this study indicate that care must be exercised when deducing the barrel swirl ratio for real engines from steady flow rig analysis. Publisher statement: Copyright © 1995 SAE International. This paper is posted on this site with permission from SAE International and is for viewing only. It may not be stored on any additional repositories or retrieval systems. Further use or distribution is not permitted without permission from SAE.
Original languageEnglish
PublisherSAE
DOIs
Publication statusPublished - 1995

Publication series

NameSAE Technical Papers
PublisherSAE

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Bibliographical note

Copyright © 1995 SAE International. This paper is posted on this site with permission from SAE International and is for viewing only. It may not be stored on any additional repositories or retrieval systems. Further use or distribution is not permitted without permission from SAE.

Keywords

  • automotive
  • design engineering and styling
  • engine cylinders
  • spark ignition gasoline engines

Cite this

Baker, P., Benjamin, S. F., Girgis, N. S., Newman, A. W., & Seeley, W. A. (1995). Characterisation of barrel swirl motion under steady flow conditions. (SAE Technical Papers). SAE. https://doi.org/10.4271/950729