Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry
This work presents Large Eddy Simulations of the unconfined CORIA Rouen Spray Burner, fed with liquid n-heptane and air. Turbulent combustion modeling is based on the Filtered TAbulated Chemistry model for LES (F-TACLES) formalism, designed to capture the propagation speed of turbulent stratified fl...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Combustion |
| Online Access: | http://dx.doi.org/10.1155/2020/2764523 |
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| author | Adrien Chatelier Benoît Fiorina Vincent Moureau Nicolas Bertier |
| author_facet | Adrien Chatelier Benoît Fiorina Vincent Moureau Nicolas Bertier |
| author_sort | Adrien Chatelier |
| collection | DOAJ |
| description | This work presents Large Eddy Simulations of the unconfined CORIA Rouen Spray Burner, fed with liquid n-heptane and air. Turbulent combustion modeling is based on the Filtered TAbulated Chemistry model for LES (F-TACLES) formalism, designed to capture the propagation speed of turbulent stratified flames. Initially dedicated to gaseous combustion, the filtered flamelet model is challenged for the first time in a turbulent spray flame configuration. Two meshes are employed. The finest grid, where both flame thickness and wrinkling are resolved, aims to challenge the chemistry tabulation procedure. At the opposite the coarse mesh does not allow full resolution of the flame thickness and exhibits significant unresolved contributions of subgrid scale flame wrinkling. Both LES solutions are extensively compared against experimental data. For both nonreacting and reacting conditions, the flow and spray aerodynamical properties are well captured by the two simulations. More interesting, the LES predicts accurately the flame lift-off height for both fine and coarse grid conditions. It confirms that the modeling methodology is able to capture the filtered turbulent flame propagation speed in a two-phase flow environment and within grid conditions representative of practical applications. Differences, observed for the droplet temperature, seem related to the evaporation model assumptions. |
| format | Article |
| id | doaj-art-75ca3a360b1743fd9006b93297f68f7f |
| institution | Kabale University |
| issn | 2090-1968 2090-1976 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Combustion |
| spelling | doaj-art-75ca3a360b1743fd9006b93297f68f7f2025-02-03T06:46:52ZengWileyJournal of Combustion2090-19682090-19762020-01-01202010.1155/2020/27645232764523Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated ChemistryAdrien Chatelier0Benoît Fiorina1Vincent Moureau2Nicolas Bertier3Université Paris-Saclay, CNRS, CentraleSupélec, Laboratoire EM2C, 91190 Gif-sur-Yvette, FranceUniversité Paris-Saclay, CNRS, CentraleSupélec, Laboratoire EM2C, 91190 Gif-sur-Yvette, FranceNormandie Univ, INSA Rouen, UNIROUEN, CNRS, CORIA, 76000 Rouen, FranceONERA—The French Aerospace Lab—Centre de Châtillon, BP 72, 92322 Chatillon Cedex, FranceThis work presents Large Eddy Simulations of the unconfined CORIA Rouen Spray Burner, fed with liquid n-heptane and air. Turbulent combustion modeling is based on the Filtered TAbulated Chemistry model for LES (F-TACLES) formalism, designed to capture the propagation speed of turbulent stratified flames. Initially dedicated to gaseous combustion, the filtered flamelet model is challenged for the first time in a turbulent spray flame configuration. Two meshes are employed. The finest grid, where both flame thickness and wrinkling are resolved, aims to challenge the chemistry tabulation procedure. At the opposite the coarse mesh does not allow full resolution of the flame thickness and exhibits significant unresolved contributions of subgrid scale flame wrinkling. Both LES solutions are extensively compared against experimental data. For both nonreacting and reacting conditions, the flow and spray aerodynamical properties are well captured by the two simulations. More interesting, the LES predicts accurately the flame lift-off height for both fine and coarse grid conditions. It confirms that the modeling methodology is able to capture the filtered turbulent flame propagation speed in a two-phase flow environment and within grid conditions representative of practical applications. Differences, observed for the droplet temperature, seem related to the evaporation model assumptions.http://dx.doi.org/10.1155/2020/2764523 |
| spellingShingle | Adrien Chatelier Benoît Fiorina Vincent Moureau Nicolas Bertier Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry Journal of Combustion |
| title | Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry |
| title_full | Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry |
| title_fullStr | Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry |
| title_full_unstemmed | Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry |
| title_short | Large Eddy Simulation of a Turbulent Spray Jet Flame Using Filtered Tabulated Chemistry |
| title_sort | large eddy simulation of a turbulent spray jet flame using filtered tabulated chemistry |
| url | http://dx.doi.org/10.1155/2020/2764523 |
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