The University of Southampton
University of Southampton Institutional Repository

Pulsed charged sprays: application to DISI engines during early injection

Shrimpton, J.S. (2003) Pulsed charged sprays: application to DISI engines during early injection International Journal for Numerical Methods in Engineering, 58, (3), pp. 513-536. (doi:10.1002/nme.794).

Record type: Article


Numerical predictions of the temporal evolution of pulsed sprays, typical of those used in gasoline direct injection spark ignition engines are presented, with the novelty that the drops are electrically charged. The rate of spray expansion, in terms of the fraction of maximum possible spray charge for a typical engine timescale, is investigated. The engine timescale chosen is the time available between spray injection and ignition, and for a low-speed engine operation, with injection during the intake stroke. The aim is to quantify the amount of electric charge, required to spread the spray throughout the engine cylinder, without causing excessive piston and wall impingement, prior to hypothetical ignition. It is found that experimentally realizable amounts of electric charge are sufficient to cause spray expansion throughout the engine cylinder within the timescale permitted. Also noted is a segregation of the smaller drops from their larger cousins, by virtue of the known non-linear variation in drop charge with drop mass. Since it is known that pulsed fuel injectors producing charged sprays of insulating liquids are a reality then electric charge seems to be a viable route to control and optimize in-cylinder mixture distribution and hence engine performance, robustness and emissions.

Full text not available from this repository.

More information

Published date: 21 September 2003


Local EPrints ID: 64548
ISSN: 0029-5981
PURE UUID: fa4a349e-8ff9-4473-bfb5-f8aabb874d33

Catalogue record

Date deposited: 08 Jan 2009
Last modified: 17 Jul 2017 14:12

Export record


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.