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A tabulated chemistry method for spray combustion [PDF]
Proceedings of the Combustion Institute, 2013 Tabulated chemistry is a popular technique to account for detailed chemical effects with an affordable computational cost in gaseous combustion systems. How- ever its performances for spray combustion have not completely been identified. The present article discusses the chemical structure modeling of spray flames us- ing tabulated chemistry methods ...
Benedetta Franzelli, N Darabiha
exaly +3 more sources
Coupling tabulated chemistry with compressible CFD solvers [PDF]
Proceedings of the Combustion Institute, 2011 The present work focuses on the coupling between tabulated chemistry techniques with compressible solvers. In low Mach-number CFD solvers the coupling is straightforward because thermo-chemical quantities are directly read in a thermo-chemical database.
Ronan Vicquelin +2 more
exaly +3 more sources
A filtered tabulated chemistry model for LES of premixed combustion [PDF]
Combustion and Flame, 2010 A new modeling strategy called F-TACLES (Filtered Tabulated Chemistry for Large Eddy Simulation) is developed to introduce tabulated chemistry methods in Large Eddy Simulation (LES) of turbulent premixed combustion. The objective is to recover the correct laminar flame propagation speed of the filtered flame front when subgrid scale turbulence vanishes
Ronan Vicquelin +2 more
exaly +2 more sources
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Tabulated chemistry approach for detonation simulations
Combustion and FlameAlexandra Baumgart +2 more
exaly +2 more sources
A Filtered Tabulated Chemistry model for LES of stratified flames
Combustion and Flame, 2012Abstract The model called Filtered Tabulated Chemistry for LES (F-TACLES), recently developed for turbulent premixed combustion [1] , is extended in the present article to stratified flames where the equivalence ratio is not spatially uniform. The principle is to generate a look-up table where thermo-chemical variables, computed from a set of ...
O Gicquel +2 more
exaly +2 more sources
A CSP and tabulation-based adaptive chemistry model
Combustion Theory and Modelling, 2007We demonstrate the feasibility of a new strategy for the construction of an adaptive chemistry model that is based on an explicit integrator stabilized by an approximation of the Computational Singular Perturbation (CSP)-slow-manifold projector. We examine the effectiveness and accuracy of this technique first using a model problem with variable ...
J. C. LEE +6 more
openaire +1 more source
A tabulated chemistry method for heterogeneous solid propellant combustion
Proceedings of the Combustion Institute, 2021Abstract Detailed chemistry simulations of heterogeneous solid propellant combustion at the microstructure scale are very costly as they involve large and stiff chemical schemes in the gas phase. A usual workaround is to use global chemistry to approximate gas phase reactions.
R. Mercier, L. Lacassagne, M. Plaud
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Modeling of PCCI combustion with FGM tabulated chemistry
Fuel, 2014Premixed Charge Compression Ignition (PCCI) is a new combustion concept aiming a simultaneous reduction of oxides of nitrogen and soot emissions. Therefore the operation focuses on improved fuel–air mixing before ignition and lower maximum in-cylinder temperatures during the complete engine cycle.
Egüz, U. +3 more
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Data-Driven Tabulation for Chemistry Integration Using Recurrent Neural Networks
IEEE Transactions on Neural Networks and Learning Systems, 2023Due to the wide range of time scales involved in the ordinary differential equations (ODEs) describing chemical reaction kinetics, multidimensional numerical simulation of chemical reactive flows using detailed combustion mechanisms is computationally expensive.
Yu Zhang 0108 +3 more
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Fuel, 2016
Abstract Detailed kinetic reaction mechanisms are necessary for accurate prediction of combustion characteristics such as ignition and emissions in realistic engines. However, the calculation of chemically reacting flows with detailed chemistry is computational expensive due to the large number of species and reactions involved.
Lei Zhou, Haiqiao Wei
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Abstract Detailed kinetic reaction mechanisms are necessary for accurate prediction of combustion characteristics such as ignition and emissions in realistic engines. However, the calculation of chemically reacting flows with detailed chemistry is computational expensive due to the large number of species and reactions involved.
Lei Zhou, Haiqiao Wei
openaire +1 more source