In this work we present and apply a new computational tool, called laminarSMOKE, for the numerical modeling laminar reacting flows multi-dimensional geometries with detailed kinetic mechanisms (accounting for hundreds of species and thousands of reactions). The proposed solver is based on the operator-splitting technique, which allows to exploit the best numerical methods available for the treatment of the reacting, stiff processes characterizing detailed kinetics. The transport equations of mass, momentum, species and energy are spatially discretized using open-source OpenFOAM® framework, able to manage both structured and unstructured meshes and arbitrarily complex geometries. The reliability and the accuracy of the proposed algorithm is demonstrated through the simulation of several steadystate laminar, coflow flames, partially premixed and purely diffusive. In particular, the simulations were performed using a very detailed kinetic mechanism (~200 species) and the results were compared with published experimental data, showing a very good agreement. Thanks to the possibility to work on multi-processor architectures, the proposed code can be considered an ideal framework for the numerical simulation of combustion systems with very detailed kinetic schemes. In contrast to most of the existing codes for the simulation of laminar flames with detailed kinetics, the laminarSMOKE code is released as an opensource code and it is freely available on the web (http://www.opensmoke.polimi.it/).

Numerical simulation of laminar coflow flames with detailed kinetic mechanisms

CUOCI, ALBERTO;FRASSOLDATI, ALESSIO;FARAVELLI, TIZIANO;RANZI, ELISEO MARIA
2013

Abstract

In this work we present and apply a new computational tool, called laminarSMOKE, for the numerical modeling laminar reacting flows multi-dimensional geometries with detailed kinetic mechanisms (accounting for hundreds of species and thousands of reactions). The proposed solver is based on the operator-splitting technique, which allows to exploit the best numerical methods available for the treatment of the reacting, stiff processes characterizing detailed kinetics. The transport equations of mass, momentum, species and energy are spatially discretized using open-source OpenFOAM® framework, able to manage both structured and unstructured meshes and arbitrarily complex geometries. The reliability and the accuracy of the proposed algorithm is demonstrated through the simulation of several steadystate laminar, coflow flames, partially premixed and purely diffusive. In particular, the simulations were performed using a very detailed kinetic mechanism (~200 species) and the results were compared with published experimental data, showing a very good agreement. Thanks to the possibility to work on multi-processor architectures, the proposed code can be considered an ideal framework for the numerical simulation of combustion systems with very detailed kinetic schemes. In contrast to most of the existing codes for the simulation of laminar flames with detailed kinetics, the laminarSMOKE code is released as an opensource code and it is freely available on the web (http://www.opensmoke.polimi.it/).
Proceedings of the Mediterranean Combustion Symposium
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/758259
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