Imperial College London
Portrait Picture

ProfessorPavlosAleiferis

Faculty of Engineering, Department of Mechanical Engineering

Chair in Thermofluids
 
 
 
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Contact

 

+44 (0)20 7594 7032p.aleiferis

 
 
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Assistant

 

Ms Eniko Jarecsni +44 (0)20 7594 7029

 
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Location

 

615City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Price:2018:10.1016/j.fuel.2018.01.088,
author = {Price, C and Hamzehloo, A and Aleiferis, P and Richardson, D},
doi = {10.1016/j.fuel.2018.01.088},
journal = {Fuel},
pages = {518--541},
title = {Numerical modelling of fuel spray formation and collapse from multi-hole injectors under flash-boiling conditions},
url = {http://dx.doi.org/10.1016/j.fuel.2018.01.088},
volume = {221},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - 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.
AU  - Price,C
AU  - Hamzehloo,A
AU  - Aleiferis,P
AU  - Richardson,D
DO  - 10.1016/j.fuel.2018.01.088
EP  - 541
PY  - 2018///
SN  - 0016-2361
SP  - 518
TI  - Numerical modelling of fuel spray formation and collapse from multi-hole injectors under flash-boiling conditions
T2  - Fuel
UR  - http://dx.doi.org/10.1016/j.fuel.2018.01.088
UR  - https://www.sciencedirect.com/science/article/pii/S001623611830098X
UR  - http://hdl.handle.net/10044/1/56320
VL  - 221
ER  -
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