Simulation and analysis of group-hole nozzle sprays using a gas jet superposition model
DC Field | Value | Language |
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dc.contributor.author | Gao, Jian | - |
dc.contributor.author | Park, Sung Wook | - |
dc.contributor.author | Wang, Yue | - |
dc.contributor.author | Reitz, Rolf D. | - |
dc.contributor.author | Moon, Seoksu | - |
dc.contributor.author | Nishida, Keiya | - |
dc.date.accessioned | 2022-12-20T10:51:44Z | - |
dc.date.available | 2022-12-20T10:51:44Z | - |
dc.date.created | 2022-08-26 | - |
dc.date.issued | 2010-12 | - |
dc.identifier.issn | 0016-2361 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/173381 | - |
dc.description.abstract | A gas jet superposition model has been recently developed for computing group-hole nozzle sprays in computational fluid dynamics (CFD) simulations. The objectives of this study are: (1) to perform a systematic validation of the comprehensive spray model for group-hole nozzles using a broad range of experimental data; (2) to analyze the dynamics and physical insight of group-hole nozzle sprays based on the simulation results; and (3) to further clarify the impact of included-angle on spray/mixture properties of group-hole nozzle sprays. An updated version of the KIVA-3V Release 2 code, which employs the Lagrangian-Drop Eulerian-Fluid (LDEF) methodology for numerical calculation of two-phase flows, was used in the simulations. Diverging group-hole nozzles with various included-angles were considered. The test conditions included non-evaporating and evaporating ambient conditions, free sprays and sprays impinging on a flat wall. Detailed comparisons were made between the experiments and computations in terms of spray/mixture characteristics. The results show that numerical parameter dependencies are significantly reduced with the new models, and good levels of agreement are obtained in terms of spray structure, liquid/vapor penetration, overall SMD and cumulative vaporized fuel mass. Both experimental measurements and simulations reveal the importance of included-angle in group-hole nozzle sprays. In particular, some important features of group-hole nozzle spray are captured in the computations by the present models: compared to the equivalent single-hole nozzle, smaller local droplet size can be achieved in the near nozzle field, indicating an enhanced fuel primary atomization; the ambient gas entrainment rate is increased during the injection period, implying the better mixing; the spray axis deflection is identified in the case of group-hole nozzles with smaller angles, which is caused by a negative relative pressure region that exists between the sprays; in addition, the asymmetric structure of wall-impinging group-hole nozzle spray is well predicted by the present models through applying the gas jet superposition model in the entire computational domain. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Simulation and analysis of group-hole nozzle sprays using a gas jet superposition model | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Sung Wook | - |
dc.identifier.doi | 10.1016/j.fuel.2010.07.019 | - |
dc.identifier.scopusid | 2-s2.0-77956619232 | - |
dc.identifier.wosid | 000282086200020 | - |
dc.identifier.bibliographicCitation | FUEL, v.89, no.12, pp.3758 - 3772 | - |
dc.relation.isPartOf | FUEL | - |
dc.citation.title | FUEL | - |
dc.citation.volume | 89 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 3758 | - |
dc.citation.endPage | 3772 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Engineering, Chemical | - |
dc.subject.keywordPlus | INJECTION DIESEL-ENGINES | - |
dc.subject.keywordPlus | MIXTURE PROPERTIES | - |
dc.subject.keywordAuthor | Gas jet superposition | - |
dc.subject.keywordAuthor | Spray modeling | - |
dc.subject.keywordAuthor | Group-hole nozzle | - |
dc.subject.keywordAuthor | CFD simulation | - |
dc.subject.keywordAuthor | KIVA code | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0016236110003662?via%3Dihub | - |
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