GW_ILASS-2016_Final_helie.pdf (670.84 kB)
Experimental investigation of the effect of high pressure nozzle geometry on spray characteristics
conference contribution
posted on 2017-02-17, 14:15 authored by Changzhao Jiang, J. Helie, Matthew C. Parker, G. Piccini-Leopardi, Adrian SpencerAdrian Spencer, Colin GarnerColin Garner, Graham WigleyPhase Doppler Anemometry (PDA) measurements [1] are applied to low length to diameter ratio (L/D) multi-hole nozzles operating with at high fuel pressure (20 MPa) that are implemented in the new Euro6 generation of Gasoline Direct Injection engines. For these multi-jets spray, the authors intend to demonstrate; the importance of the spray shape, the effect of hole design and the reorganisation dynamic of the drop size distribution by turbulent mixing. To do so, we report significant experimental effort along with careful data reduction, exercised to understand the spray behaviour, in particular separating the sources of experimental uncertainty from the flow physics. A practical methodology is adopted as a compromise between measurement effort, error removal, and the need to understand underlying physical processes within the spray plume. The present work focuses mostly on the drop size and velocity profiles (two-component) perpendicular to the plume direction.
Funding
The authors would like to acknowledge the financial support of the Advanced Propulsion Centre (APC) for this work which was undertaken as part of TSB/APC project number 101891.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
ILASS 27th Annual Conference on Liquid Atomization and Spray SystemsCitation
JIANG, C. ... et al, 2016. Experimental investigation of the effect of high pressure nozzle geometry on spray characteristics. ILASS 2016 27th Annual European Conference on Liquid Atomization and Spray Systems, Brighton, UK, 4th-7th September 2016.Publisher
ILASSVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2016-08-05Publication date
2016Notes
This is a conference paper.ISBN
9781910172100Publisher version
Language
- en