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ICLASS 94
Proceedings of the Sixth International Conference on Liquid Atomization and Spray Systems

ISBN 打印: 978-1-56700-019-1

ISBN 在线: 978-1-56700-445-5

EFFECT OF INJECTOR ORIFICE CONFIGURATIONS ON ATOMIZATION

Abstract

Experiments are conducted with water to determine the influence of the length to diameter ratio (L/d0) of the sharp-edged entry orifice and its exit geometry on the atomization. Both swirled and non-swirled water jets are investigated. The Sauter mean diameter of the droplets is shown to be smaller at lower values of L/d0 of the orifice for the swirled and non-swirled jet. The increased azimuthal vorticity for non-swirled jet and the higher whirl momentum in the case of the swirled jet at the smaller L/d0 values are seen to be responsible for reduced droplet sizes. The range of variation of the sizes of the droplets is however larger at the small L/d0 values. The influence of flow and geometrical variables on atomization are discussed.
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