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 …
A sharp-interface immersed boundary method for moving objects in compressible viscous flows
Abstract Sharp-interface Immersed Boundary Methods for moving solids in compressible
viscous flows often exhibit spurious noise propagating from the moving boundary. In …
viscous flows often exhibit spurious noise propagating from the moving boundary. In …
A directional ghost-cell immersed boundary method for low Mach number reacting flows with interphase heat and mass transfer
This paper presents a directional ghost-cell immersed boundary method for low Mach
number reacting flows with general boundary conditions, extending the approach described …
number reacting flows with general boundary conditions, extending the approach described …
Fully resolved direct numerical simulation of single coal particle gasification in supercritical water
Supercritical water gasification is a promising technology in the context of carbon neutrality,
since it converts coal into hydrogen and easily-captured CO 2. A fully resolved direct …
since it converts coal into hydrogen and easily-captured CO 2. A fully resolved direct …
A parameter-free and monolithic approach for multiscale simulations of flow, transport, and chemical reactions in porous media
Z Ou, Q Xue, Y Wan, H Wei, C Chi… - Journal of Computational …, 2024 - Elsevier
Traditional approaches for transport in porous media rely on empirical hydrodynamic/
transport parameters to quantify the interfacial exchange terms between fluid and solid …
transport parameters to quantify the interfacial exchange terms between fluid and solid …
A GPU-accelerated sharp interface immersed boundary method for versatile geometries
Abstract We present a Graphical Processing Unit (GPU) accelerated sharp interface
Immersed Boundary (IB) method that can be applied to versatile geometries on a staggered …
Immersed Boundary (IB) method that can be applied to versatile geometries on a staggered …
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 …
The Taylor–Green vortex as a benchmark for high-fidelity combustion simulations using low-Mach solvers
Verification and validation are crucial steps for the development of any numerical model.
While suitable processes have been established for commercial Computational Fluid …
While suitable processes have been established for commercial Computational Fluid …
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 …
Interface-resolved direct numerical simulations of interphase momentum, heat, and mass transfer in supercritical water gasification of coal
Interactions between a reacting particle and the surrounding fluid are complex due to the
interplay between flow dynamics, heat and mass transfer, and chemical reactions. In the …
interplay between flow dynamics, heat and mass transfer, and chemical reactions. In the …