Sökning: WFRF:(song yuxin) > Investigation of fl...
Fältnamn | Indikatorer | Metadata |
---|---|---|
000 | 04121naa a2200385 4500 | |
001 | oai:lup.lub.lu.se:de94bbdb-2b03-4b38-9286-a6f82d1bbfa8 | |
003 | SwePub | |
008 | 220905s2022 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/de94bbdb-2b03-4b38-9286-a6f82d1bbfa82 URI |
024 | 7 | a https://doi.org/10.1016/j.ast.2022.1077102 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Chen, Yuqianu Lund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Nanjing University4 aut0 (Swepub:lu)yu0502ch |
245 | 1 0 | a Investigation of flame characteristics and cooling effectiveness of jet-cooled wall flameholders in vitiated flow |
264 | 1 | b Elsevier BV,c 2022 |
520 | a Experimental and numerical studies were performed to understand the flame characteristics and cooling effect of jet-cooled wall flameholders in a simplified augmented combustor. The time-averaged flame structure and wall temperature were investigated employing an instantaneous flame capturing system with image processing technology and a wall temperature measurement system, respectively. Flow and fuel distribution simulations were carried out to analyze the flame structure and cooling effect of the jet-cooled flameholders in high-temperature and high-velocity vitiated flows. It was found that the jet cooling type and the cooling jet angle on the oblique plate α and on the rear plate β greatly affect the flame features and cooling effect of the flameholder. The external-inhaled air cooling schemes can increase the flame luminosity and temperature and create a flame hollowed-out zone in the near-wall region to reduce flame radiation and heat convection, thereby achieving an excellent cooling effect. The pressure-driven gas jet cooling schemes yielded a weaker flame luminosity and its flame structure in the cavity more sensitive to the cooling jet angle than external-inhaled air cooling schemes. Moreover, the external-inhaled air cooling schemes have significantly better cooling effects than the pressure-driven gas jet cooling schemes under different mainstream conditions and fuel flow rates. Notably, the cooling schemes with α=30∘ and β=30∘ have more uniform wall temperature than that of α=90∘ and β=150∘ on the above two plates. Furthermore, the external-inhaled air cooling scheme with α=90∘ and β=150∘ has the best cooling performance under different mainstream and cooling air conditions and presents great cooling effectiveness in the case of enhancing cooling air temperature. | |
650 | 7 | a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Energiteknik0 (SwePub)203042 hsv//swe |
650 | 7 | a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Energy Engineering0 (SwePub)203042 hsv//eng |
653 | a Cooling effectiveness | |
653 | a Flame characteristics | |
653 | a Fuel distribution | |
653 | a Jet cooling | |
653 | a Wall flameholder | |
653 | a Wall temperature | |
700 | 1 | a Fan, Yuxinu Nanjing University4 aut |
700 | 1 | a Han, Qixiangu Nanjing University4 aut |
700 | 1 | a Bai, Xue Songu Lund University,Lunds universitet,Strömningsteknik,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,LTH profilområde: Energiomställningen,LTH profilområden,Fluid Mechanics,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: The Energy Transition,LTH Profile areas,Faculty of Engineering, LTH,Nanjing University4 aut0 (Swepub:lu)vok-xba |
710 | 2 | a Strömningsteknikb Institutionen för energivetenskaper4 org |
773 | 0 | t Aerospace Science and Technologyd : Elsevier BVg 127q 127x 1270-9638 |
856 | 4 | u http://dx.doi.org/10.1016/j.ast.2022.107710y FULLTEXT |
856 | 4 8 | u https://lup.lub.lu.se/record/de94bbdb-2b03-4b38-9286-a6f82d1bbfa8 |
856 | 4 8 | u https://doi.org/10.1016/j.ast.2022.107710 |
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