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Artículos de revistas

Literatura académica sobre el tema "Detailed chemistry solver"

Autor: Grafiati

Publicado: 10 de marzo de 2023

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Artículos de revistas sobre el tema "Detailed chemistry solver"

1

Liang, Long, Song-Charng Kong, Chulhwa Jung, and Rolf D. Reitz. "Development of a Semi-implicit Solver for Detailed Chemistry in Internal Combustion Engine Simulations." Journal of Engineering for Gas Turbines and Power 129, no. 1 (2006): 271–78. http://dx.doi.org/10.1115/1.2204979.

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An efficient semi-implicit numerical method is developed for solving the detailed chemical kinetic source terms in internal combustion (IC) engine simulations. The detailed chemistry system forms a group of coupled stiff ordinary differential equations (ODEs), which presents a very stringent time-step limitation when solved by standard explicit methods, and is computationally expensive when solved by iterative implicit methods. The present numerical solver uses a stiffly stable noniterative semi-implicit method. The formulation of numerical integration exploits the physical requirement that th

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2

Matrisciano, Andrea, Tim Franken, Laura Catalina Gonzales Mestre, Anders Borg, and Fabian Mauss. "Development of a Computationally Efficient Tabulated Chemistry Solver for Internal Combustion Engine Optimization Using Stochastic Reactor Models." Applied Sciences 10, no. 24 (2020): 8979. http://dx.doi.org/10.3390/app10248979.

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The use of chemical kinetic mechanisms in computer aided engineering tools for internal combustion engine simulations is of high importance for studying and predicting pollutant formation of conventional and alternative fuels. However, usage of complex reaction schemes is accompanied by high computational cost in 0-D, 1-D and 3-D computational fluid dynamics frameworks. The present work aims to address this challenge and allow broader deployment of detailed chemistry-based simulations, such as in multi-objective engine optimization campaigns. A fast-running tabulated chemistry solver coupled t

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3

Deepu, M., M. P. Dhrishit, and S. Shyji. "Numerical simulation of high speed reacting shear layers using AUSM+- up scheme-based unstructured finite volume method solver." International Journal of Modeling, Simulation, and Scientific Computing 08, no. 03 (2017): 1750020. http://dx.doi.org/10.1142/s1793962317500209.

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Development of an Advection Upstream Splitting Method (AUSM[Formula: see text]-up) scheme-based Unstructured Finite Volume (UFVM) solver for the simulation of two-dimensional axisymmetric/planar high speed compressible turbulent reacting shear layers is presented. The inviscid numerical flux is evaluated using AUSM[Formula: see text]-up upwind scheme. An eight-step hydrogen–oxygen finite rate chemistry model is used to model the development of chemical species in a supersonic reacting flow field. The chemical species terms are alone solved implicitly in this explicit flow solver by rescaling t

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4

Zhou, Dezhi, Hongyuan Zhang, and Suo Yang. "A Robust Reacting Flow Solver with Computational Diagnostics Based on OpenFOAM and Cantera." Aerospace 9, no. 2 (2022): 102. http://dx.doi.org/10.3390/aerospace9020102.

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In this study, we developed a new reacting flow solver based on OpenFOAM (OF) and Cantera, with the capabilities of (i) dealing with detailed species transport and chemistry, (ii) integration using a well-balanced splitting scheme, and (iii) two advanced computational diagnostic methods. First of all, a flaw of the original OF chemistry model to deal with pressure-dependent reactions is fixed. This solver then couples Cantera with OF so that the robust chemistry reader, chemical reaction rate calculations, ordinary differential equations (ODEs) solver, and species transport properties handled

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5

Myriokefalitakis, Stelios, Nikos Daskalakis, Angelos Gkouvousis, et al. "Description and evaluation of a detailed gas-phase chemistry scheme in the TM5-MP global chemistry transport model (r112)." Geoscientific Model Development 13, no. 11 (2020): 5507–48. http://dx.doi.org/10.5194/gmd-13-5507-2020.

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Abstract. This work documents and evaluates the tropospheric gas-phase chemical mechanism MOGUNTIA in the three-dimensional chemistry transport model TM5-MP. Compared to the modified CB05 (mCB05) chemical mechanism previously used in the model, MOGUNTIA includes a detailed representation of the light hydrocarbons (C1–C4) and isoprene, along with a simplified chemistry representation of terpenes and aromatics. Another feature implemented in TM5-MP for this work is the use of the Rosenbrock solver in the chemistry code, which can replace the classical Euler backward integration method of the mod

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6

Bigalli, Simone, Iacopo Catalani, Francesco Balduzzi, et al. "Numerical Investigation on the Performance of a 4-Stroke Engine with Different Passive Pre-Chamber Geometries Using a Detailed Chemistry Solver." Energies 15, no. 14 (2022): 4968. http://dx.doi.org/10.3390/en15144968.

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Pre-chamber turbulent jet ignition represents one of the most promising techniques to improve spark ignition engines efficiency and reduce pollutant emissions. This technique consists of igniting the air-fuel mixture in the main combustion chamber by means of several hot turbulent flame jets exiting a pre-chamber. In the present study, the combustion process of a 4-stroke, gasoline SI, PFI engine equipped with a passive pre-chamber has been investigated through three-dimensional CFD (Computational Fluid Dynamics) analysis. A detailed chemistry solver with a reduced reaction mechanism was emplo

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7

Kawka, László, Gergely Juhász, Máté Papp, Tibor Nagy, István Gy Zsély, and Tamás Turányi. "Comparison of detailed reaction mechanisms for homogeneous ammonia combustion." Zeitschrift für Physikalische Chemie 234, no. 7-9 (2020): 1329–57. http://dx.doi.org/10.1515/zpch-2020-1649.

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AbstractAmmonia is a potential fuel for the storage of thermal energy. Experimental data were collected for homogeneous ammonia combustion: ignition delay times measured in shock tubes (247 data points in 28 datasets from four publications) and species concentration measurements from flow reactors (194/22/4). The measurements cover wide ranges of temperature T, pressure p, equivalence ratio φ and dilution. The experimental data were encoded in ReSpecTh Kinetics Data Format version 2.2 XML files. The standard deviations of the experimental datasets used were determined based on the experimental

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8

Arrighetti, Cinzio, Stefano Cordiner, and Vincenzo Mulone. "Heat and Mass Transfer Evaluation in the Channels of an Automotive Catalytic Converter by Detailed Fluid-Dynamic and Chemical Simulation." Journal of Heat Transfer 129, no. 4 (2006): 536–47. http://dx.doi.org/10.1115/1.2709657.

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The role of numerical simulation to drive the catalytic converter development becomes more important as more efficient spark ignition engines after-treatment devices are required. The use of simplified approaches using rather simple correlations for heat and mass transfer in a channel has been widely used to obtain computational simplicity and sufficient accuracy. However, these approaches always require specific experimental tuning so reducing their predictive capabilities. The feasibility of a computational fluid dynamics three-dimensional (3D) model coupled to a surface chemistry solver is

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9

Pala, M. G., and G. Iannaccone. "A three-dimensional solver of the Schrödinger equation in momentum space for the detailed simulation of nanostructures." Nanotechnology 13, no. 3 (2002): 369–72. http://dx.doi.org/10.1088/0957-4484/13/3/325.

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10

Mallet, V., and B. Sportisse. "3-D chemistry-transport model Polair: numerical issues, validation and automatic-differentiation strategy." Atmospheric Chemistry and Physics Discussions 4, no. 2 (2004): 1371–92. http://dx.doi.org/10.5194/acpd-4-1371-2004.

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Abstract. We briefly present in this short paper some issues related to the development and the validation of the three-dimensional chemistry-transport model Polair. Numerical studies have been performed in order to let Polair be an efficient and robust solver. This paper summarizes and comments choices that were made in this respect. Simulations of relevant photochemical episodes were led to assess the validity of the model. The results can be considered as a validation, which allows next studies to focus on fine modeling issues. A major feature of Polair is the availability of a tangent line

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