Ignition Delay in solid-fuel ramjet combustor

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dc.contributor.authorJung, Woosukko
dc.contributor.authorJung, SangWooko
dc.contributor.authorKwon, Taesooko
dc.contributor.authorPark, Juhyeonko
dc.contributor.authorKwon, Sejinko
dc.date.accessioned2018-12-20T01:47:47Z-
dc.date.available2018-12-20T01:47:47Z-
dc.date.created2018-07-04-
dc.date.created2018-07-04-
dc.date.created2018-07-04-
dc.date.created2018-07-04-
dc.date.issued2018-11-
dc.identifier.citationJOURNAL OF PROPULSION AND POWER, v.34, no.6, pp.1519 - 1528-
dc.identifier.issn0748-4658-
dc.identifier.urihttp://hdl.handle.net/10203/247130-
dc.description.abstractThe ignition delay requirement and ignition characteristics of a solid fuel in the ramjet combustor were investigated. The shock in a simple diffuser geometry was calculated to obtain the upper limit of ignition delay, and it was determined to be shorter than 1 s. To achieve this short ignition delay, a high-density polyethylene (HDPE) fuel grain coated with an ignition support material and a fuel-rich propellant (FRP) were prepared. The ignition support materials were nitrocellulose with boron potassium nitrate (NC/BKNO3) and an ammonium perchlorate (AP)/hydroxyl-terminated polybutadiene (HTPB)-based composite propellant. For testing purposes, a compact gas generator was built to simulate the conditions in the ramjet combustor. The simulation results revealed that the NC/BKNO3 ignition support material showed the shortest ignition delay of 1.27 s, but the flame in this case was not sufficient to ignite the HDPE. In a demonstration test, an ignition support material composed of NC/BKNO3 and the AP/HTPB-based composite propellant was applied to the FRP fuel grain, in which case a stably sustained flame was obtained. The test results demonstrated that ignition of the FRP and that of the ignition support material occurred simultaneously with an ignition delay of 1.74 s.-
dc.languageEnglish-
dc.publisherAMER INST AERONAUTICS ASTRONAUTICS-
dc.titleIgnition Delay in solid-fuel ramjet combustor-
dc.typeArticle-
dc.identifier.wosid000449455700014-
dc.identifier.scopusid2-s2.0-85056807170-
dc.type.rimsART-
dc.citation.volume34-
dc.citation.issue6-
dc.citation.beginningpage1519-
dc.citation.endingpage1528-
dc.citation.publicationnameJOURNAL OF PROPULSION AND POWER-
dc.identifier.doi10.2514/1.B36955-
dc.contributor.localauthorKwon, Sejin-
dc.contributor.nonIdAuthorKwon, Taesoo-
dc.contributor.nonIdAuthorPark, Juhyeon-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle; Proceedings Paper-
dc.subject.keywordPlusPROPELLANTS-
dc.subject.keywordPlusENGINE-
dc.subject.keywordPlusPERFORMANCE-
dc.subject.keywordPlusSIMULATION-
dc.subject.keywordPlusGAS-
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