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Fuel injection from subcritical to supercritical P-T conditions: a unified methodology for coupled in-nozzle flow, atomisation and air-fuel mixing processes

Total Cost €


EC-Contrib. €






 UNIFIED project word cloud

Explore the words cloud of the UNIFIED project. It provides you a very rough idea of what is the project "UNIFIED" about.

equations    consumption    decades    atomisation    fluid    society    benefit    academic    immiscible    infrastructure    subject    vaporisation    diffused    liquid    techniques    injection    2020    critical    trade    host    combination    employed    area    interface    time    core    capturing    emission    legislations    transportation    relies    cavitation    flow    scientific    air    cfd    compressibility    nozzle    model    unknown    transfer    models    quantifying    forthcoming    thermodynamics    simulations    fossil    double    disappearance    brings    polluting    aforementioned    vapour    turbulence    mixing    prevailing    turn    resolved    fuel    experimental    complying    enhances    engines    rate    supercritical    physical    guide    significantly    injected    near    experts    mixture    data    couple    demand    validation    outgoing    reduces    modelled    interfaces    numerical    almost    pressure    mass    emissions    gas    return    form    meet    industrial    point    experiments   

Project "UNIFIED" data sheet

The following table provides information about the project.


Organization address
city: LONDON
postcode: EC1V 0HB

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Total cost 251˙857 €
 EC max contribution 251˙857 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2016
 Funding Scheme MSCA-IF-GF
 Starting year 2018
 Duration (year-month-day) from 2018-10-08   to  2021-10-07


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    CITY UNIVERSITY OF LONDON UK (LONDON) coordinator 251˙857.00
2    Sandia Corporation US (Albuquerque) partner 0.00


 Project objective

Fossil fuel consumption is expected to almost double over the next 3 decades in order to meet the increasing demand for infrastructure, trade and transportation. Development of engines complying with the forthcoming 2020 emission legislations, relies on the effective design of advanced high-pressure fuel injection systems and represents a key industrial priority. Emissions can be reduced when fuel is injected against air at P-T conditions well above the fuel’s critical point; the prevailing supercritical fluid conditions result to disappearance of the liquid-gas interface, which in turn, reduces vaporisation time and enhances significantly air-fuel mixing. Combination of experiments (outgoing phase) with CFD simulations (return phase) of the in-nozzle flow, fuel atomisation and mixing processes under such conditions form the core subject of the proposed research. The experimental work includes currently unknown physical properties measurements near the fuel’s critical point; these will be modelled with complex equations of state for a wide range of P-T conditions. Moreover, the state-of-the-art experimental techniques and equipment of the US host, will be employed for quantifying the near-nozzle fuel atomisation and mixing at those conditions. These experimental data will guide the development and validation of a new state-of-the-art CFD model able to couple the aforementioned multi-phase flow processes through a combination of physical models and numerical methods. These include interface capturing of immiscible and diffused interfaces, scale-resolved turbulence, mass transfer rate (cavitation and vaporisation) and real-fluid thermodynamics addressing the compressibility effects for the liquid-vapour-air mixture. The project brings together research, academic and industrial experts from the US and Europe. It will advance scientific knowledge and will facilitate the design of less polluting engines for the benefit of the European area and society as a whole.


year authors and title journal last update
List of publications.
2018 C. Rodriguez, P. Koukouvinis, M. Gavaises
Simulation of supercritical Diesel jets using the PC-SAFT EoS
published pages: , ISSN: 0896-8446, DOI: 10.1016/j.supflu.2018.11.003
The Journal of Supercritical Fluids 2019-07-19

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The information about "UNIFIED" are provided by the European Opendata Portal: CORDIS opendata.

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