A computational study of a two-fluid atomizing coaxial jet: Validation against experimental back-lit imaging and radiography and the influence of gas velocity and …

L Vu, N Machicoane, D Li, TB Morgan… - International Journal of …, 2023 - Elsevier
Numerical simulations of liquid atomization in a two-fluid coaxial geometry have been
performed using a geometric Volume-of-Fluid method. Experimental measurements have …

A numerical study of aero engine sub-idle operation: from a realistic representation of spray injection to detailed chemistry LES-CMC

M Okraschevski, LCC Mesquita, R Koch… - Flow, Turbulence and …, 2023 - Springer
High altitude relight is a matter of increasing importance for aero engine manufacturers, in
which combustion plays literally a vital role. In this paper we want to evaluate the predictive …

[HTML][HTML] A computational methodology to account for the liquid film thickness evolution in Direct Numerical Simulation of prefilming airblast atomization

R Payri, FJ Salvador, M Carreres… - International Journal of …, 2023 - Elsevier
Prefilming airblast atomization is becoming widely used in current aero engines.
Fundamental studies on the actual annular configuration of airblast atomizers are difficult to …

Numerical assessment of Diffuse-Interface method for air-assisted liquid sheet simulation

B Péden, J Carmona, P Boivin, T Schmitt, B Cuenot… - Computers & …, 2023 - Elsevier
This study presents the implementation and validation of a second-order accurate solver for
the 4-equation multi-fluid method in a cell-vertex context, to handle aeronautical air-assisted …

Coupling of combustion simulation with atomisation and filming models for les in swirled spray flames

NCW Treleaven, D Laera, J Carmona, N Odier… - Flow, Turbulence and …, 2022 - Springer
High fidelity spray flame modelling without ad-hoc tuning of the injection parameters is
proposed for an Euler-Lagrangian LES description of turbulent combustion in swirled two …

Lagrangian Simulation Methodology for Large-Eddy Simulations of Prefilming Air-Blast Injectors

J Carmona, NCW Treleaven, N Odier… - Journal of Propulsion and …, 2023 - arc.aiaa.org
A Lagrangian framework is proposed to address liquid film and atomization modeling in
large-eddy simulations (LESs) of aeronautical air-blast injectors. The Lagrangian liquid film …

Air-film coupling in prefilming airblast atomisers and the implications for subsequent atomisation

JRJ Wetherell, A Garmory - Flow, Turbulence and Combustion, 2024 - Springer
Prefilming airblast atomisers are commonly used in gas turbine combustion system fuel
injectors. As the film propagates across the prefilmer it interacts with the high velocity gas …

The Effect of Unsteady Boundary Conditions on Simulations of Prefilming Airblast Atomisation

JRJ Wetherell, A Garmory - … Expo: Power for …, 2023 - asmedigitalcollection.asme.org
Liquid fuelled gas turbines are likely to remain a dominant force in aviation propulsion for
the foreseeable future, and therefore understanding the atomisation process is key to …

The Effect of Film Development on Primary Breakup in a Prefilming Airblast Atomizer

JRJ Wetherell, A Garmory - … of Engineering for …, 2024 - asmedigitalcollection.asme.org
Liquid fueled gas turbines are likely to remain a dominant force in aviation propulsion for the
foreseeable future, and therefore understanding the atomization process is key to meeting …

Modélisation des phénomènes diphasiques dans des injecteurs aéronautiques de type Airblast

J Carmona - 2021 - hal.science
Le secteur aéronautique se doit aujourd'hui de réduire ses émissions polluantes et sa
consommation de carburants fossiles afin de proposer des moteurs compatibles avec des …