Recent developments in DNS of turbulent combustion
P Domingo, L Vervisch - Proceedings of the Combustion Institute, 2023 - Elsevier
The simulation of turbulent flames fully resolving the smallest flow scales and the thinnest
reaction zones goes along with specific requirements, which are discussed from …
reaction zones goes along with specific requirements, which are discussed from …
On-the-fly artificial neural network for chemical kinetics in direct numerical simulations of premixed combustion
C Chi, G Janiga, D Thévenin - Combustion and Flame, 2021 - Elsevier
In this study, an on-the-fly artificial neural network (ANN) framework has been developed for
the tabulation of chemical reaction terms in direct numerical simulations (DNS) of premixed …
the tabulation of chemical reaction terms in direct numerical simulations (DNS) of premixed …
Highly accurate heat release rate marker detection in NH3–CH4 cofiring through machine learning and domain knowledge-based selection integration
Ammonia emerges as a promising substitute for traditional fuels, offering a potential
reduction in fossil fuel consumption and the associated emissions. Given its weak reactivity …
reduction in fossil fuel consumption and the associated emissions. Given its weak reactivity …
Numerical study of heat release rate markers in laminar premixed Ammonia-methane-air flames
Ammonia has the potential of being a future fuel for carbon-free combustion to reduce
greenhouse gases (GHG) emission. The heat release rate (HRR) information of ammonia …
greenhouse gases (GHG) emission. The heat release rate (HRR) information of ammonia …
Numerical Study on Heat Release Rate Markers with Nonunity Exponents for Ammonia–Methane Premixed Flames
As one of the carbon-free fuels, ammonia has great application potential in energy systems.
However, its relatively low reactivity makes it usually required to be cofired with small …
However, its relatively low reactivity makes it usually required to be cofired with small …
[HTML][HTML] Heat release rate surrogate for ammonia–hydrogen premixed flames under various conditions
Blending hydrogen has proven an efficient method to enhance the combustion stability of
gaseous ammonia flames. Heat release rate (HRR), as an important parameter to indicate …
gaseous ammonia flames. Heat release rate (HRR), as an important parameter to indicate …
Efficient premixed turbulent combustion simulations using flamelet manifold neural networks: A priori and a posteriori assessment
Flamelet-based reduced manifold tabulation is very useful to save computing time compared
to simulations of turbulent flames with detailed kinetics. However, conventional tabulation …
to simulations of turbulent flames with detailed kinetics. However, conventional tabulation …
Effects of molecular diffusion modeling on turbulent premixed NH3/H2/air flames
Ammonia (NH 3) is a promising carbon-free energy carrier and can be used as a fuel in gas
turbines for power generation. Using a blend of NH 3 and hydrogen (H 2) has the potential …
turbines for power generation. Using a blend of NH 3 and hydrogen (H 2) has the potential …
Heat Release Rate Markers for Highly Stretched Premixed CH4/Air and CH4/H2/Air Flames
Accurate quantification of heat release rate (HRR) profiles is useful for identifying important
combustion processes in practical engines. This study aims to show whether the …
combustion processes in practical engines. This study aims to show whether the …
DNS study on reactivity stratification with prechamber H2/air turbulent jet flame to enhance NH3/air combustion in gas engines
C Chi, D Thévenin - Fuel, 2023 - Elsevier
The present study investigates turbulent flame dynamics and pollutant emission
characteristics in a prechamber/main chamber system. AH 2/air turbulent jet flame issued …
characteristics in a prechamber/main chamber system. AH 2/air turbulent jet flame issued …