A Microscopic Analysis of In-Cylinder Swirl Generated by Directed Ports

Paper #:
  • 941754

Published:
  • 1994-09-01
Citation:
Liu, X., Liu, R., Xiao, F., and Guan, L., "A Microscopic Analysis of In-Cylinder Swirl Generated by Directed Ports," SAE Technical Paper 941754, 1994, https://doi.org/10.4271/941754.
Pages:
9
Abstract:
Based on 3- dimensional velocity data at intake valve exit area of typical SI engine intake ports (horizontal and sloping directed ports) measured by hot wire anemometry in a steady flow rig, the magnitudes and compositions of inflow angular momentum flux and swirl ratios at the end of induction process generated by each velocity component were computed at different intake valve lifts and distances along valve axis. A microscopic evaluation method was provided for evaluating intake port characteristics according to intake valve exit flow field.
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