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Comparative study of subfilter scalar dissipation rate and mixture fraction variance models

Author
Ventosa-Molina, J.; Lehmkuhl, O.; Perez, C.; Muela, J.; Oliva, A.
Type of activity
Presentation of work at congresses
Name of edition
6th European Conference on Computational Fluid Dynamics
Date of publication
2014
Presentation's date
2014-07-21
Book of congress proceedings
11th World Congress on Computational Mechanics (WCCM XI); 5th European Conference on Computational Mechanics (ECCM V); 6th European Conference on Computational Fluid Dynamics (ECFD VI): all sessions and papers; July 20-25, 2014, Barcelona, Spain
First page
5239
Last page
5248
Repository
http://hdl.handle.net/2117/82232 Open in new window
URL
http://www.wccm-eccm-ecfd2014.org/frontal/Ebook.asp Open in new window
Abstract
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 us...
Citation
Ventosa, J., Lehmkuhl, O., Perez, C., Muela, J., Oliva, A. Comparative study of subfilter scalar dissipation rate and mixture fraction variance models. A: European Conference on Computational Fluid Dynamics. "11th World Congress on Computational Mechanics (WCCM XI); 5th European Conference on Computational Mechanics (ECCM V); 6th European Conference on Computational Fluid Dynamics (ECFD VI): all sessions and papers; July 20-25, 2014, Barcelona, Spain". Barcelona: 2014, p. 5239-5248.
Keywords
Diffusion flame., Flamelet/progress-variable, Large Eddy Simulation, Mixture fraction variance, Subfilter scalar dissipation rate
Group of research
CTTC - Heat and Mass Transfer Technological Center

Participants