[HTML][HTML] The transition to sustainable combustion: Hydrogen-and carbon-based future fuels and methods for dealing with their challenges
H Pitsch - Proceedings of the Combustion Institute, 2024 - Elsevier
While the world is already facing substantial impacts of global warming, the transition
towards a sustainable-energy future is slow because of the sheer scale of global energy …
towards a sustainable-energy future is slow because of the sheer scale of global energy …
[HTML][HTML] Large Eddy Simulation of large-scale hydrogen deflagrations using the Thickened Flame Model with stretch sensitivity adaptation and thermo-diffusive …
C Mehl, S Poncet, K Truffin, O Colin - International Journal of Hydrogen …, 2024 - Elsevier
Due to the high costs associated to experimental testing of hydrogen (H 2) explosions,
numerical simulations play an essential role in the design of safe industrial systems. In this …
numerical simulations play an essential role in the design of safe industrial systems. In this …
[HTML][HTML] Synergistic interplay of thermodiffusive instability and turbulence in premixed flames
In this work, we experimentally analyze the interplay of thermo-diffusive (TD) intrinsic flame
instabilities and turbulence in premixed flame propagation. We utilize methane/hydrogen/air …
instabilities and turbulence in premixed flame propagation. We utilize methane/hydrogen/air …
[HTML][HTML] Intrinsic instability of lean hydrogen/ammonia premixed flames: Influence of Soret effect and pressure
The addition of hydrogen in ammonia/air mixtures can lead to the onset of intrinsic flame
instabilities at conditions of technical relevance. The length and time scales of intrinsic …
instabilities at conditions of technical relevance. The length and time scales of intrinsic …
[HTML][HTML] An extension of the artificially thickened flame approach for premixed hydrogen flames with intrinsic instabilities
Despite the growing interest in hydrogen as a fuel, current combustion models are still
incapable of considering the effects of intrinsic flame instabilities, such as increased flame …
incapable of considering the effects of intrinsic flame instabilities, such as increased flame …
[HTML][HTML] Stabilization regimes and flame structure at the flame base of a swirled lean premixed hydrogen–air injector with a pure hydrogen pilot injection
Hydrogen (H 2) has become a key in the decarbonation process of the aeronautical field
and new gaseous injection systems must be designed to suit hydrogen's specific properties …
and new gaseous injection systems must be designed to suit hydrogen's specific properties …
[HTML][HTML] Intrinsically unstable hydrogen-enriched premixed ammonia flames: Analysis and modeling of NO formation
Enriching a lean ammonia/air mixture with hydrogen can increase the reactivity of pure
ammonia flames. However, this may lead to the onset of intrinsic flame instabilities, which in …
ammonia flames. However, this may lead to the onset of intrinsic flame instabilities, which in …
[HTML][HTML] Data-driven modeling of resolved and filtered thermo-diffusively unstable hydrogen–air flames
Hydrogen premixed flames, under technically relevant conditions, are affected by intrinsic
instabilities due to hydrodynamic and thermodiffusive effects, which are not taken into …
instabilities due to hydrodynamic and thermodiffusive effects, which are not taken into …
Hydrogen reaction rate modeling based on convolutional neural network for large eddy simulation
Q Malé, CJ Lapeyre, N Noiray - arXiv preprint arXiv:2408.16709, 2024 - arxiv.org
This paper establishes a data-driven modeling framework for lean Hydrogen (H2)-air
reaction rates for the Large Eddy Simulation (LES) of turbulent reactive flows. This is …
reaction rates for the Large Eddy Simulation (LES) of turbulent reactive flows. This is …
Analysis of thermodiffusive instabilities in hydrogen premixed flames using a tabulated flamelet model
Preferential diffusion plays a critical role in the evolution of lean premixed hydrogen flames,
influencing flame surface corrugation and overall flame behavior. Simulating such flames …
influencing flame surface corrugation and overall flame behavior. Simulating such flames …