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dc.contributor.author박성욱-
dc.date.accessioned2017-10-10T07:57:19Z-
dc.date.available2017-10-10T07:57:19Z-
dc.date.issued2015-12-
dc.identifier.citationENERGY, v. 93, Page. 1758-1768en_US
dc.identifier.issn0360-5442-
dc.identifier.issn1873-6785-
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0360544215014267?via%3Dihub-
dc.identifier.urihttp://hdl.handle.net/20.500.11754/29557-
dc.description.abstractThe present study investigates the effect of the injection strategy on the mixture quality and the consequential combustion characteristics. The injection strategies considered in the present study were divided into two parts: single injection (with a wide range of injection timings during the intake stroke) and double injection (with a short second injection during the compression stroke). The in-cylinder pressure and high-speed flame images were acquired to evaluate the combustion characteristics, and KIVA simulation was conducted to observe the in-cylinder flow and the fuel spray spreading procedure. For the single injection, retarding the injection timing caused an increase in the combustion speed and in-cylinder pressure. In this case, the major factor that increased the in-cylinder pressure was the turbulence intensity; the later injection produced a stronger turbulence at the spark timing, which caused a higher in-cylinder pressure. Meanwhile, the flame propagation direction was mainly affected by the equivalence ratio distribution. The flame speed toward the fuel-lean region was significantly slower than toward the fuel-rich region. The double injection strategy utilized the additional turbulence induced by the spray motion to increase the engine power. (C) 2015 Elsevier Ltd. All rights reserved.en_US
dc.description.sponsorshipThis research was supported by the Center for Environmentally Friendly Vehicle (CEFV) as a Global-Top Project of Ministry of Environment, Korea (KMOE) (E614-00104-0102-1).en_US
dc.language.isoenen_US
dc.publisherPERGAMON-ELSEVIER SCIENCE LTDen_US
dc.subjectDISI (direct injection spark ignition) optical engineen_US
dc.subjectMixture formationen_US
dc.subjectKIVA codeen_US
dc.subjectFlame propagationen_US
dc.subjectTurbulence intensityen_US
dc.titleEffects of the injection strategy on the mixture formation and combustion characteristics in a DISI (direct injection spark ignition) optical engineen_US
dc.typeArticleen_US
dc.relation.volume93-
dc.identifier.doi10.1016/j.energy.2015.10.058-
dc.relation.page1758-1768-
dc.relation.journalENERGY-
dc.contributor.googleauthorSong, Jingeun-
dc.contributor.googleauthorKim, Taehoon-
dc.contributor.googleauthorJang, Jihwan-
dc.contributor.googleauthorPark, Sungwook-
dc.relation.code2015003471-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDIVISION OF MECHANICAL ENGINEERING-
dc.identifier.pidparks-
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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