[HTML][HTML] Improving aircraft performance using machine learning: A review

S Le Clainche, E Ferrer, S Gibson, E Cross… - Aerospace Science and …, 2023 - Elsevier
This review covers the new developments in machine learning (ML) that are impacting the
multi-disciplinary area of aerospace engineering, including fundamental fluid dynamics …

A data-driven reduced-order model for stiff chemical kinetics using dynamics-informed training

V Vijayarangan, HA Uranakara, S Barwey, RM Galassi… - Energy and AI, 2024 - Elsevier
A data-based reduced-order model (ROM) is developed to accelerate the time integration of
stiff chemically reacting systems by effectively removing the stiffness arising from a wide …

PyCSP: A Python package for the analysis and simplification of chemically reacting systems based on Computational Singular Perturbation

RM Galassi - Computer Physics Communications, 2022 - Elsevier
PyCSP is a Python package for the analysis and simplification of chemically reacting
systems, using algorithms based on the Computational Singular Perturbation (CSP) theory …

An adaptive time-integration scheme for stiff chemistry based on computational singular perturbation and artificial neural networks

RM Galassi, PP Ciottoli, M Valorani, HG Im - Journal of Computational …, 2022 - Elsevier
We leverage the computational singular perturbation (CSP) theory to develop an adaptive
time-integration scheme for stiff chemistry based on a local, projection-based, reduced order …

Investigation of the turbulent flame structure and topology at different Karlovitz numbers using the tangential stretching rate index

DM Manias, EA Tingas, FEH Pérez, RM Galassi… - Combustion and …, 2019 - Elsevier
Turbulent premixed flames at high Karlovitz numbers exhibit highly complex structures in
different reactive scalar fields to the extent that the definition of the flame front in an …

Reduction of large-size combustion mechanisms of n-decane and n-dodecane with an improved sensitivity analysis method

S Xi, J Xue, F Wang, X Li - Combustion and Flame, 2020 - Elsevier
Abstract n-decane and n-dodecane are important components in transport fuels and
detailed combustion mechanisms with a large number of species and reactions applicable …

[HTML][HTML] Impact of chemical modeling on the numerical analysis of a LOx/GCH4 rocket engine pintle injector

L Lucchese, J Liberatori, D Cavalieri, D Simone… - Acta Astronautica, 2024 - Elsevier
Liquid rocket engines equipped with LOx/GCH4 pintle injectors represent a promising
technology when a large throttling capability is required. Still, limited amounts of data are …

Family of Skeletal Reaction Mechanisms for Methane–Oxygen Combustion in Rocket Propulsion

J Liberatori, R Malpica Galassi, D Bianchi… - Journal of Propulsion …, 2024 - arc.aiaa.org
Analyzing methane–oxygen rocket propellant combinations requires suitable modeling of
the major chemical reaction processes. Although several detailed kinetic mechanisms for …

Automated adaptive chemistry for Large Eddy Simulations of turbulent reacting flows

R Amaduzzi, G D'Alessio, P Pagani, A Cuoci… - Combustion and …, 2024 - Elsevier
Abstract Large Eddy Simulations (LES) of turbulent reacting flows carried out with detailed
kinetic mechanisms have a key role for the discovery of the physical and chemical …

Multi-stage heat release in lean combustion: Insights from coupled tangential stretching rate (TSR) and computational singular perturbation (CSP) analysis

AS AlRamadan, RM Galassi, PP Ciottoli… - Combustion and …, 2020 - Elsevier
There is a growing interest in leaner burning internal combustion engines as an enabler for
higher thermodynamic efficiency. The extension of knock-limited compression ratio and the …