Title: Simulation Analysis on Spray Characteristics of Nozzle
Abstract: Spray properties and mixture formation strongly depend on nozzle flow characteristics.This part will describe the coupling of the diesel nozzle cavitating flow with the spray simulations.The nozzle cavitating flow simulations are obtained with the multiphase sol-ver.The flow field values at nozzle outlet will be linked to the inlet boundary conditions of the multiphase spray model.Local values at nozzle outlet have subsequently to be extracted,involved the velocity,the turbulent kinetic energy,cavitations,etc.Based on SAC nozzle,spray characteristics with various nozzle geometry,such as K-factor,radius of rounded inlet are studied in this paper.At the same time,the influence on spray characteristics from production error,injection pressure,chamber pressure are also studied.The re-sults indicate that injection pressure,chamber pressure,K-factor and radius of rounded inlet have great influence on flow characteris-tics.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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