Using a homogeneous equilibrium model for the study of the inner nozzle flow and cavitation pattern in convergent–divergent nozzles of diesel injectors

作者：

Highlights：

• Three non-conventional convergent-divergent diesel nozzles are compared.

• The nozzle with higher convergence-divergence level shows the higher mass flow and momentum flux.

• The nozzle with higher convergence-divergence level exhibits similar effective velocity than the nozzle with lower level.

• The nozzle with higher convergence-divergence level is more prone to cavitate.

• Better mixing process is expected for the nozzle with highest convergence-divergence level.

摘要

•Three non-conventional convergent-divergent diesel nozzles are compared.•The nozzle with higher convergence-divergence level shows the higher mass flow and momentum flux.•The nozzle with higher convergence-divergence level exhibits similar effective velocity than the nozzle with lower level.•The nozzle with higher convergence-divergence level is more prone to cavitate.•Better mixing process is expected for the nozzle with highest convergence-divergence level.

论文关键词：Cavitation,OpenFOAM®,Internal flow,Diesel injector,CFD,Convergent–divergent nozzle

论文评审过程：Received 30 November 2015, Revised 1 April 2016, Available online 19 April 2016, Version of Record 29 August 2016.

论文官网地址：https://doi.org/10.1016/j.cam.2016.04.010