Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s40430-018-1170-0 http://hdl.handle.net/11449/179859 |
Resumo: | Direct injection plays an important role in the efforts to increase efficiency of modern engines, and the correct evaluation of the velocity and fuel mixture fraction fields is crucial for modeling combustion in fuel sprays. Therefore, a computational study has been performed to assess the effect of different parameters on the mixture formation and flow field in the simulation of a single jet of the engine combustion network (ECN) “Spray G” evaporative gasoline injection test case. The Lagrangian particle tracking (LPT) approach was tested within both Reynolds-averaged Navier–Stokes (RANS) and large eddy simulation (LES) frameworks, and the varieties were compared. Additional parameters that were considered include mesh resolution (0.75, 0.50, and 0.25 mm) and droplet breakup (Reitz–Diwakar, Reitz–KHRT, and Pilch–Erdman), as well as stochastic turbulent dispersion (O’Rourke) and stochastic collision (O’Rourke) models. Experimental penetration length data from both liquid and vapor phases were used to validate the 54 simulations performed within this study. Then, a series of analyses were performed to weigh the effect of each isolated parameter on the outcome of the simulations. Finally, three additional simulations were conducted to study specific issues of LES in fuel spray modeling. In this way, this study was able to make a qualitative comparison of the evaporative spray cloud shapes and the evaluation of spray statistics in terms of the iso-octane mixture fraction and droplet/slip velocities. |
id |
UNSP_658c7d5500e9dbfe1d1417a86faa0507 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/179859 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test caseFuel sprayICELagrangian particle trackingLESRANSDirect injection plays an important role in the efforts to increase efficiency of modern engines, and the correct evaluation of the velocity and fuel mixture fraction fields is crucial for modeling combustion in fuel sprays. Therefore, a computational study has been performed to assess the effect of different parameters on the mixture formation and flow field in the simulation of a single jet of the engine combustion network (ECN) “Spray G” evaporative gasoline injection test case. The Lagrangian particle tracking (LPT) approach was tested within both Reynolds-averaged Navier–Stokes (RANS) and large eddy simulation (LES) frameworks, and the varieties were compared. Additional parameters that were considered include mesh resolution (0.75, 0.50, and 0.25 mm) and droplet breakup (Reitz–Diwakar, Reitz–KHRT, and Pilch–Erdman), as well as stochastic turbulent dispersion (O’Rourke) and stochastic collision (O’Rourke) models. Experimental penetration length data from both liquid and vapor phases were used to validate the 54 simulations performed within this study. Then, a series of analyses were performed to weigh the effect of each isolated parameter on the outcome of the simulations. Finally, three additional simulations were conducted to study specific issues of LES in fuel spray modeling. In this way, this study was able to make a qualitative comparison of the evaporative spray cloud shapes and the evaluation of spray statistics in terms of the iso-octane mixture fraction and droplet/slip velocities.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)School of Engineering São Paulo State University (UNESP), Guaratinguetá Campus, Av. Dr. Ariberto Pereira da Cunha, 333 Portal das ColinasSchool of Engineering São Paulo State University (UNESP), Guaratinguetá Campus, Av. Dr. Ariberto Pereira da Cunha, 333 Portal das ColinasFAPESP: 2015/10299-9Universidade Estadual Paulista (Unesp)Dias Ribeiro, Mateus [UNESP]Bimbato, Alex Mendonça [UNESP]Zanardi, Maurício Araújo [UNESP]Balestieri, José Antônio Perrella [UNESP]2018-12-11T17:37:03Z2018-12-11T17:37:03Z2018-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1007/s40430-018-1170-0Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 40, n. 5, 2018.1806-36911678-5878http://hdl.handle.net/11449/17985910.1007/s40430-018-1170-02-s2.0-850469056252-s2.0-85046905625.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Brazilian Society of Mechanical Sciences and Engineering0,362info:eu-repo/semantics/openAccess2024-07-01T19:30:00Zoai:repositorio.unesp.br:11449/179859Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:27:12.916934Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case |
title |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case |
spellingShingle |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case Dias Ribeiro, Mateus [UNESP] Fuel spray ICE Lagrangian particle tracking LES RANS |
title_short |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case |
title_full |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case |
title_fullStr |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case |
title_full_unstemmed |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case |
title_sort |
Effect of different parameters on mixture formation and flow field in simulations of an evaporative spray injection test case |
author |
Dias Ribeiro, Mateus [UNESP] |
author_facet |
Dias Ribeiro, Mateus [UNESP] Bimbato, Alex Mendonça [UNESP] Zanardi, Maurício Araújo [UNESP] Balestieri, José Antônio Perrella [UNESP] |
author_role |
author |
author2 |
Bimbato, Alex Mendonça [UNESP] Zanardi, Maurício Araújo [UNESP] Balestieri, José Antônio Perrella [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Dias Ribeiro, Mateus [UNESP] Bimbato, Alex Mendonça [UNESP] Zanardi, Maurício Araújo [UNESP] Balestieri, José Antônio Perrella [UNESP] |
dc.subject.por.fl_str_mv |
Fuel spray ICE Lagrangian particle tracking LES RANS |
topic |
Fuel spray ICE Lagrangian particle tracking LES RANS |
description |
Direct injection plays an important role in the efforts to increase efficiency of modern engines, and the correct evaluation of the velocity and fuel mixture fraction fields is crucial for modeling combustion in fuel sprays. Therefore, a computational study has been performed to assess the effect of different parameters on the mixture formation and flow field in the simulation of a single jet of the engine combustion network (ECN) “Spray G” evaporative gasoline injection test case. The Lagrangian particle tracking (LPT) approach was tested within both Reynolds-averaged Navier–Stokes (RANS) and large eddy simulation (LES) frameworks, and the varieties were compared. Additional parameters that were considered include mesh resolution (0.75, 0.50, and 0.25 mm) and droplet breakup (Reitz–Diwakar, Reitz–KHRT, and Pilch–Erdman), as well as stochastic turbulent dispersion (O’Rourke) and stochastic collision (O’Rourke) models. Experimental penetration length data from both liquid and vapor phases were used to validate the 54 simulations performed within this study. Then, a series of analyses were performed to weigh the effect of each isolated parameter on the outcome of the simulations. Finally, three additional simulations were conducted to study specific issues of LES in fuel spray modeling. In this way, this study was able to make a qualitative comparison of the evaporative spray cloud shapes and the evaluation of spray statistics in terms of the iso-octane mixture fraction and droplet/slip velocities. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-12-11T17:37:03Z 2018-12-11T17:37:03Z 2018-05-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s40430-018-1170-0 Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 40, n. 5, 2018. 1806-3691 1678-5878 http://hdl.handle.net/11449/179859 10.1007/s40430-018-1170-0 2-s2.0-85046905625 2-s2.0-85046905625.pdf |
url |
http://dx.doi.org/10.1007/s40430-018-1170-0 http://hdl.handle.net/11449/179859 |
identifier_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering, v. 40, n. 5, 2018. 1806-3691 1678-5878 10.1007/s40430-018-1170-0 2-s2.0-85046905625 2-s2.0-85046905625.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of the Brazilian Society of Mechanical Sciences and Engineering 0,362 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129203947700224 |