Investigation of Non-Spherical Droplets in High-Pressure Fuel Sprays

Lead Research Organisation: City, University of London

Department Name: Sch of Engineering and Mathematical Sci

Abstract

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.

Funded Value:

£232,517

Funded Period:

Feb 14 - Feb 17

Funder:

EPSRC

Project Status:

Closed

Project Category:

Research Grant

Project Reference:

EP/K020846/1

Principal Investigator:

Manolis Gavaises

Research Subject:

Mechanical engineering (50%)

Process engineering (50%)

Research Topic:

Combustion (50%)

Fluid Dynamics (50%)

Organisations

City, University of London (Lead Research Organisation)

People	ORCID iD
Manolis Gavaises (Principal Investigator)

Publications

Author Name

Title Publication Date Published

10 25 50

Hwang J (2020) Spatio-temporal identification of plume dynamics by 3D computed tomography using engine combustion network spray G injector and various fuels in Fuel

Hwang J (2021) Machine-learning enabled prediction of 3D spray under engine combustion network spray G conditions in Fuel

Karathanassis I (2020) Combined visualisation of cavitation and vortical structures in a real-size optical diesel injector in Experiments in Fluids

Karathanassis I (2021) X-ray phase contrast and absorption imaging for the quantification of transient cavitation in high-speed nozzle flows in Physics of Fluids

Nykteri G (2022) Numerical modeling of droplet rim fragmentation by laser-pulse impact using a multiscale two-fluid approach in Physical Review Fluids

Strotos G (2018) Determination of the aerodynamic droplet breakup boundaries based on a total force approach in International Journal of Heat and Fluid Flow

Strotos G. (2015) Performance of VOF methodology in predicting the deformation and breakup of impulsively accelerated droplets

Strotos G. (2015) Simulation of droplet deformation, breakup and vaporisation using the full Navier Stokes equations

Key Findings


Description	No/ Break-up of droplets occurs while most of their mass is still in liquid phase. A computational method has been developed to simulate the deformation and evaporation of fuel droplets. The method -due to extremely high computational cost- was used to simulate the movement of a single droplet in high pressure conditions. The results were tested against existing experimental studies. The comparison of experiments and simulations showed that the computational methods successfully reproduce the experimental results, regarding. the evaporation rate of the droplets and the change of their shape. The most important finding was that the break-up of the droplets in these conditions occurs very soon, when a very small fraction of the droplets mass has evaporated.
Exploitation Route	As experiments in the simulated conditions are not available and hard to be conducted due to technical limitations, the results of the simulations performed for one droplet can be used for the modelling of sprays.
Sectors	Aerospace, Defence and Marine,Energy,Transport

Abstract

Organisations

People

ORCID iD

Publications