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Título:
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Comparative study of subfilter scalar dissipation rate and mixture fraction variance models
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Autor/a:
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Ventosa Molina, Jordi; Lehmkuhl Barba, Oriol; Pérez Segarra, Carlos David; Muela Castro, Jordi; Oliva Llena, Asensio
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Física; Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics; Universitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor |
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Abstract:
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Accurate characterisation of mixing at the subfilter level is a critical aspect
in many LES combustion models, such as
flamelet based and Conditional Moment Closure
models. Several models can be found in the literature, which vary from algebraic relations
between resolved magnitudes, to the full transport of the subfilter magnitudes. In this
paper a comparative between different published models is made in the context of a amelet based combustion model. A turbulent hydrogen/methane flame is used as test case. |
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Abstract:
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Accurate characterisation of mixing at the subfilter level is a critical aspect
in many LES combustion models, such as
flamelet based and Conditional Moment Closure
models. Several models can be found in the literature, which vary from algebraic relations
between resolved magnitudes, to the full transport of the subfilter magnitudes. In this
paper a comparative between different published models is made in the context of a amelet based combustion model. A turbulent hydrogen/methane flame is used as test case. |
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Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria mecànica
-Computational fluid dynamics
-Combustion
-Large Eddy Simulation
-Flamelet/progress-variable
-Subfilter scalar dissipation rate
-Mixture fraction variance
-Diffusion flame.
-Mecànica de fluids computacional
-Combustió -- Simulació per ordinador |
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Derechos:
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Tipo de documento:
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Artículo - Versión publicada
Objeto de conferencia |
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