Measuring air core characteristics of a pressure-swirl atomizer via a transparent acrylic nozzle at various Reynolds numbers
DC Field | Value | Language |
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dc.contributor.author | Lee, E.J. | - |
dc.contributor.author | Oh, S.Y. | - |
dc.contributor.author | Kim, H.Y. | - |
dc.contributor.author | James, S.C. | - |
dc.contributor.author | Yoon, S.S. | - |
dc.date.accessioned | 2021-09-08T09:21:35Z | - |
dc.date.available | 2021-09-08T09:21:35Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2010 | - |
dc.identifier.issn | 0894-1777 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/118327 | - |
dc.description.abstract | Because of thermal fluid-property dependence, atomization stability (or flow regime) can change even at fixed operating conditions when subject to temperature change. Particularly at low temperatures, fuel's high viscosity can prevent a pressure-swirl (or simplex) atomizer from sustaining a centrifugal-driven air core within the fuel injector. During disruption of the air core inside an injector, spray characteristics outside the nozzle reflect a highly unstable, nonlinear mode where air core length, Sauter mean diameter (SMD), cone angle, and discharge coefficient variability. To better understand injector performance, these characteristics of the pressure-swirl atomizer were experimentally investigated and data were correlated to Reynolds numbers (Re). Using a transparent acrylic nozzle, the air core length, SMD, cone angle, and discharge coefficient are observed as a function of Re. The critical Reynolds numbers that distinguish the transition from unstable mode to transitional mode and eventually to a stable mode are reported. The working fluids are diesel and a kerosene-based fuel, referred to as bunker-A. © 2010 Elsevier Inc. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.subject | Air core | - |
dc.subject | Cone angle | - |
dc.subject | Critical Reynolds number | - |
dc.subject | Discharge coefficients | - |
dc.subject | Flow regimes | - |
dc.subject | Fuel injector performance | - |
dc.subject | Fuel injectors | - |
dc.subject | High viscosities | - |
dc.subject | Low temperatures | - |
dc.subject | Nonlinear mode | - |
dc.subject | Operating condition | - |
dc.subject | Sauter mean diameters | - |
dc.subject | Spray characteristics | - |
dc.subject | Stable modes | - |
dc.subject | Swirl atomizers | - |
dc.subject | Swirl sprays | - |
dc.subject | Temperature changes | - |
dc.subject | Temperature effect | - |
dc.subject | Thermal fluids | - |
dc.subject | Unstable modes | - |
dc.subject | Working fluid | - |
dc.subject | Centrifugation | - |
dc.subject | Fuel injection | - |
dc.subject | Fuels | - |
dc.subject | Jet pumps | - |
dc.subject | Reynolds number | - |
dc.subject | Temperature | - |
dc.subject | Spray nozzles | - |
dc.title | Measuring air core characteristics of a pressure-swirl atomizer via a transparent acrylic nozzle at various Reynolds numbers | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, H.Y. | - |
dc.contributor.affiliatedAuthor | Yoon, S.S. | - |
dc.identifier.doi | 10.1016/j.expthermflusci.2010.07.010 | - |
dc.identifier.scopusid | 2-s2.0-77956175378 | - |
dc.identifier.bibliographicCitation | Experimental Thermal and Fluid Science, v.34, no.8, pp.1475 - 1483 | - |
dc.relation.isPartOf | Experimental Thermal and Fluid Science | - |
dc.citation.title | Experimental Thermal and Fluid Science | - |
dc.citation.volume | 34 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 1475 | - |
dc.citation.endPage | 1483 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | Air core | - |
dc.subject.keywordPlus | Cone angle | - |
dc.subject.keywordPlus | Critical Reynolds number | - |
dc.subject.keywordPlus | Discharge coefficients | - |
dc.subject.keywordPlus | Flow regimes | - |
dc.subject.keywordPlus | Fuel injector performance | - |
dc.subject.keywordPlus | Fuel injectors | - |
dc.subject.keywordPlus | High viscosities | - |
dc.subject.keywordPlus | Low temperatures | - |
dc.subject.keywordPlus | Nonlinear mode | - |
dc.subject.keywordPlus | Operating condition | - |
dc.subject.keywordPlus | Sauter mean diameters | - |
dc.subject.keywordPlus | Spray characteristics | - |
dc.subject.keywordPlus | Stable modes | - |
dc.subject.keywordPlus | Swirl atomizers | - |
dc.subject.keywordPlus | Swirl sprays | - |
dc.subject.keywordPlus | Temperature changes | - |
dc.subject.keywordPlus | Temperature effect | - |
dc.subject.keywordPlus | Thermal fluids | - |
dc.subject.keywordPlus | Unstable modes | - |
dc.subject.keywordPlus | Working fluid | - |
dc.subject.keywordPlus | Centrifugation | - |
dc.subject.keywordPlus | Fuel injection | - |
dc.subject.keywordPlus | Fuels | - |
dc.subject.keywordPlus | Jet pumps | - |
dc.subject.keywordPlus | Reynolds number | - |
dc.subject.keywordPlus | Temperature | - |
dc.subject.keywordPlus | Spray nozzles | - |
dc.subject.keywordAuthor | Air core | - |
dc.subject.keywordAuthor | Fuel injector performance | - |
dc.subject.keywordAuthor | Swirl spray | - |
dc.subject.keywordAuthor | Temperature effect | - |
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