IRUS Total

Numerical modelling of fuel spray formation and collapse from multi-hole injectors under flash-boiling conditions

File Description SizeFormat 
Fuel_Paper_CPrice_Revised_Deposit.pdfAccepted version11.53 MBAdobe PDFView/Open
Title: Numerical modelling of fuel spray formation and collapse from multi-hole injectors under flash-boiling conditions
Authors: Price, C
Hamzehloo, A
Aleiferis, P
Richardson, D
Item Type: Journal Article
Abstract: Flash-boiling of fuel sprays can occur when the fuel enters a metastable superheated state, which is common in direct-injection spark-ignition engines operating at low in-cylinder pressures and/or hot fuel temperatures. The effect of flash-boiling on the resultant spray formation can be both detrimental and advantageous to engine operation, hence numerical modelling capability is essential in future engine optimisation and design. A recently-developed new model by the current authors that can be applied as zero-dimensional boundary condition for multi-hole flash-boiling fuel spray predictions was investigated over a wide range of injection systems, focusing on the model’s ability to quantify in-nozzle phase change effects and automatically predict important global spray characteristics such as spray collapse, droplet recirculation and plume merging within a Lagrangian particle tracking framework. Mesh-type sensitivity was highlighted using a uniform Cartesian and a non-uniform polyhedral mesh. The model was also normalised through a dimensionless parameter for a wide range of single component fuels. The model was validated both qualitatively and, where possible, quantitatively against experimental data. The model’s ability to deal with a wide range of injection configurations and operating conditions was confirmed and a number of limitations are highlighted and discussed with respect to future work.
Issue Date: 1-Jun-2018
Date of Acceptance: 23-Jan-2018
URI: http://hdl.handle.net/10044/1/56320
DOI: 10.1016/j.fuel.2018.01.088
ISSN: 0016-2361
Publisher: Elsevier
Start Page: 518
End Page: 541
Journal / Book Title: Fuel
Volume: 221
Issue: 1
Copyright Statement: © 2018 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Jaguar Land Rover Limited
Engineering & Physical Science Research Council (E
Funder's Grant Number: see further info
EP/M009424/1 - R1696
Keywords: 0306 Physical Chemistry (incl. Structural)
0904 Chemical Engineering
0913 Mechanical Engineering
Publication Status: Published
Online Publication Date: 2018-04-02
Appears in Collections:Mechanical Engineering
Faculty of Engineering