posted on 2018-07-20, 15:46authored byNazar B.H. Abdelkarim
This thesis presents a numerical study of the break-up and atomisation of gasoline
fuel sprays injected into atmospheric flow conditions and environments related to
combustion chamber conditions. Calculations of the fuel break-up process were
achieved by four different models: Taylor Analogy Break-up (TAB), the wave
instability theory (WAVE), the Hybrid Sheet-TAB and the Hybrid WAVE-FIPA
models. The TAB model relates the break-up process to the droplet oscillations;
whereas the WAVE models calculate the fuel break-up from the unstable waves on
the droplet surface. The modified version of the TAB model, called the Hybrid
Sheet-TAB model delays the start of the break-up further downstream from the
nozzle tip. A new hybrid model, the WAVE-FIPA model, divides the spray
atomisation processes into a primary stage, where the WAVE model is used, and a
secondary stage, which is simulated using experimental correlations to calculate the
break-up time for the low Weber number droplets. [Continues.]
History
School
Aeronautical, Automotive, Chemical and Materials Engineering
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/
Publication date
2005
Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.