Price, C;
Hamzehloo, A;
Aleiferis, PG;
Richardson, D;
(2016)
An Approach to Modelling Flash-Boiling Fuel Sprays for Direct-Injection Spark-Ignition Engines.
Atomization and Sprays
, 26
(12)
pp. 1197-1239.
10.1615/AtomizSpr.2016015807.
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Abstract
Flash-boiling is a phenomenon which occurs when a liquid is discharged into an environment with an ambient pressure below the saturation pressure of the liquid. The present computational work provides an approach to modelling flash-boiling fuel sprays using the Lagrangian particle tracking technique. An atomization model based on heterogeneous nucleation inside the nozzle is implemented as a boundary condition at the nozzle exit and alongside a superheat evaporation model for the emerging spray droplets. The near-nozzle dense spray region of flash-boiling sprays is also investigated by consideration to the initial spray plume cone angle. The model was able to predict important flash-boiling phenomenon such as spray collapse and droplet recirculation automatically, validated against experimental data.
| Type: | Article |
|---|---|
| Title: | An Approach to Modelling Flash-Boiling Fuel Sprays for Direct-Injection Spark-Ignition Engines |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1615/AtomizSpr.2016015807 |
| Publisher version: | https://doi.org/10.1615/AtomizSpr.2016015807 |
| Language: | English |
| Additional information: | This version is the author-accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Flash-boiling, spray droplet evaporation, direct-injection, spark- ignition engines |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1494563 |
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