Visualizing study on swirling flow induced into cylinder of motored model engine

Abstract

To make clear the behavior of swirling flow induced into cylinder of a motored model engine with high swirl port, the pattern and direction of air flow in the cylinder are visualized at every crank angle during intake process by using a spark tracing and particle tracing techniques, changing the position of spark electrode.
Consequently, several characteristics of air flow induced into cylfinder, such as the direction, induced angle and center of swirlingflow, are determined at every crank angle and several cross-sectionsof cylinder.