Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame
[EN] This study presents an assessment of the Partially Stirred Reactor (PaSR) as a subgrid model for large eddy simulations (LES) of turbulent premixed combustion. The PaSR-LES approach uses a skeletal mechanism for methane/air combustion, and requires the transport of all the species, with a closu...
| Authors: | ; ; ; |
|---|---|
| Format: | Article |
| Publication date: | 2025 |
| Country: | España |
| Institution: | Universitat Politècnica de València (UPV) |
| Repository: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Language: | English |
| OAI Identifier: | oai:riunet.upv.es:10251/212321 |
| Online Access: | https://riunet.upv.es/handle/10251/212321 |
| Access Level: | Open access |
| Keyword: | Partially Stirred Reactor (PaSR) Large-eddy simulations (LES) Swirling flame Premixed combustion MAQUINAS Y MOTORES TERMICOS |
| _version_ | 1878736148938883072 |
|---|---|
| author | Rodrigues-Da Silva, Fredherico Nicolaus |
| author2 | García-Oliver, José M|||0000-0002-2676-9681 Pastor Enguídanos, José Manuel|||0000-0003-4458-0353 Mira, Daniel |
| author2_role | author author author |
| author_browse | García-Oliver, José M|||0000-0002-2676-9681 Mira, Daniel Pastor Enguídanos, José Manuel|||0000-0003-4458-0353 Rodrigues-Da Silva, Fredherico Nicolaus |
| author_facet | Rodrigues-Da Silva, Fredherico Nicolaus García-Oliver, José M|||0000-0002-2676-9681 Pastor Enguídanos, José Manuel|||0000-0003-4458-0353 Mira, Daniel |
| author_role | author |
| collection | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| description | [EN] This study presents an assessment of the Partially Stirred Reactor (PaSR) as a subgrid model for large eddy simulations (LES) of turbulent premixed combustion. The PaSR-LES approach uses a skeletal mechanism for methane/air combustion, and requires the transport of all the species, with a closure for the filtered source terms. The rate of progress for each reaction is given by the mixing and chemical time scales, which are computed from global flame parameters and a turbulent time scale respectively. This model is applied to a swirled combustor exhibiting a V-flame shape attached to the nozzle, subjected to heat loss. LES are carried out for two distinct equivalence ratios at atmospheric pressure. The flow fields and the thermochemical states from PaSR-LES are compared with the experimental data and solutions based on Flamelet Generated Manifolds (FGM). The results show good correlation with the experiments and FGM-LES, though also some sensitivity to the resolution. The approach also reproduces well the effect of heat loss, which is determined by the use of a chemical time scale given by a progress variable. Dedicated analysis of the swirl-stabilized flame on different regions is conducted evaluating the capabilities of the model to reproduce the burning velocity, flame shape and flame structure. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_89d5b04f53be4b264cf94cd86bb5300a |
| institution | Universitat Politècnica de València (UPV) |
| instname_str | Universitat Politècnica de València (UPV) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:riunet.upv.es:10251/212321 |
| publishDate | 2025 |
| publishDateSort | 2025 |
| publisher | Springer-Verlag |
| publisherStr | Springer-Verlag |
| reponame_str | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| spelling | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame Rodrigues-Da Silva, Fredherico Nicolaus García-Oliver, José M|||0000-0002-2676-9681 Pastor Enguídanos, José Manuel|||0000-0003-4458-0353 Mira, Daniel Partially Stirred Reactor (PaSR) Large-eddy simulations (LES) Swirling flame Premixed combustion MAQUINAS Y MOTORES TERMICOS [EN] This study presents an assessment of the Partially Stirred Reactor (PaSR) as a subgrid model for large eddy simulations (LES) of turbulent premixed combustion. The PaSR-LES approach uses a skeletal mechanism for methane/air combustion, and requires the transport of all the species, with a closure for the filtered source terms. The rate of progress for each reaction is given by the mixing and chemical time scales, which are computed from global flame parameters and a turbulent time scale respectively. This model is applied to a swirled combustor exhibiting a V-flame shape attached to the nozzle, subjected to heat loss. LES are carried out for two distinct equivalence ratios at atmospheric pressure. The flow fields and the thermochemical states from PaSR-LES are compared with the experimental data and solutions based on Flamelet Generated Manifolds (FGM). The results show good correlation with the experiments and FGM-LES, though also some sensitivity to the resolution. The approach also reproduces well the effect of heat loss, which is determined by the use of a chemical time scale given by a progress variable. Dedicated analysis of the swirl-stabilized flame on different regions is conducted evaluating the capabilities of the model to reproduce the burning velocity, flame shape and flame structure. This project has received funding from the Center of Excellence in Combustion project (grantagreement No 952181), along with the AHEAD PID2020-118387RB-C31 (CMT) / PID2020-118387RB-C33(BSC) and ORION PDC2021-121066-C22 (CMT) / PDC2021-121066-C21 (BSC), and H2AERO CPP2022-009921 (BSC) projects from the Ministerio de Ciencia e Innovacion. DM acknowledges the grant Ayudas paracontratos Ramon y Cajal (RYC 2021): RYC2021-034654-I from Ministerio de Ciencia e Innovacion. Springer-Verlag https://riunet.upv.es/handle/10251/212321 |
| spellingShingle | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame Rodrigues-Da Silva, Fredherico Nicolaus Partially Stirred Reactor (PaSR) Large-eddy simulations (LES) Swirling flame Premixed combustion MAQUINAS Y MOTORES TERMICOS |
| title | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame |
| title_full | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame |
| title_fullStr | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame |
| title_full_unstemmed | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame |
| title_short | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame |
| title_sort | Assessment of the Partially Stirred Reactor Model for LES in a Swirl-Stabilized Turbulent Premixed Flame |
| topic | Partially Stirred Reactor (PaSR) Large-eddy simulations (LES) Swirling flame Premixed combustion MAQUINAS Y MOTORES TERMICOS |
| topic_facet | Partially Stirred Reactor (PaSR) Large-eddy simulations (LES) Swirling flame Premixed combustion MAQUINAS Y MOTORES TERMICOS |
| url | https://riunet.upv.es/handle/10251/212321 |