- -

Visualization of pilot flame of an optically-accessible coaxially-staged aero-engine lean-burn fuel injector

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

Visualization of pilot flame of an optically-accessible coaxially-staged aero-engine lean-burn fuel injector

Show simple item record

Files in this item

dc.contributor.author Matsuura, Kazuaki es_ES
dc.contributor.author Uesaka, Shunya es_ES
dc.contributor.author Iwasaki, Tomoyuki es_ES
dc.contributor.author Kurosawa, Yoji es_ES
dc.contributor.author Yamada, Hideshi es_ES
dc.contributor.author Yamamoto, Takeshi es_ES
dc.contributor.author Hayashi, Shigeru es_ES
dc.date.accessioned 2018-03-27T11:48:14Z
dc.date.available 2018-03-27T11:48:14Z
dc.date.issued 2017-07-28
dc.identifier.isbn 9788490485804
dc.identifier.uri http://hdl.handle.net/10251/99823
dc.description.abstract [EN] The visualization of the pilot flame of a coaxially-staged aero-engine lean-burn fuel injector, not only downstream but also inside of the pilot nozzle, was successfully performed at realistic aero-engine conditions. Optical access toward the inside of the nozzle was achieved through the inner and outer shrouds, both of which were made of transparent quartz. The image distortion caused by complex contours of the two shrouds was corrected by a method based on optical ray tracing, which realized precise determination of spatial intensity distribution of optical signals. Line-of-sight OH chemiluminescence, cross-sectional OH-LIF, kerosene LIF and kerosene Mie scattering were employed as diagnostic tools. The effects of pilot local air-to-fuel ratio on spray flame structure were revealed, both inside and downstream of the pilot nozzle under stable combustions. As the pilot mixture got rich, the main reaction zone moved from inside of the pilot nozzle to the region near the injector lip downstream of the injector exit. The OH-LIF signal was detected near the central axis surrounded by the fuel spray. It was also observed near the back-step of the pilot nozzle for the rich cases. The experiments under combustion oscillation were also conducted and the correlation of phenomena inside and downstream of the pilot nozzle was captured. It was clarified that the reaction enhancement in the outer part of the lip vortex region was caused by the convection of rich mixture, which appeared near the pilot atomizer lip at 150~210deg earlier oscillation phase angle. es_ES
dc.format.extent 8 es_ES
dc.language Inglés es_ES
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation.ispartof Ilass Europe. 28th european conference on Liquid Atomization and Spray Systems es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Aero-engine combustor es_ES
dc.subject Optical burner/injector es_ES
dc.subject Staged lean-burn injector es_ES
dc.subject Laser induced fluorescence es_ES
dc.subject Ray tracing es_ES
dc.subject Optical refraction correction es_ES
dc.subject Elevated temperature and pressure es_ES
dc.title Visualization of pilot flame of an optically-accessible coaxially-staged aero-engine lean-burn fuel injector es_ES
dc.type Capítulo de libro es_ES
dc.type Comunicación en congreso es_ES
dc.identifier.doi 10.4995/ILASS2017.2017.4752
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Matsuura, K.; Uesaka, S.; Iwasaki, T.; Kurosawa, Y.; Yamada, H.; Yamamoto, T.; Hayashi, S. (2017). Visualization of pilot flame of an optically-accessible coaxially-staged aero-engine lean-burn fuel injector. En Ilass Europe. 28th european conference on Liquid Atomization and Spray Systems. Editorial Universitat Politècnica de València. 855-872. doi:10.4995/ILASS2017.2017.4752 es_ES
dc.description.accrualMethod OCS es_ES
dc.relation.conferencename ILASS2017 - 28th European Conference on Liquid Atomization and Spray Systems es_ES
dc.relation.conferencedate September 06-08,2017 es_ES
dc.relation.conferenceplace Valencia, Spain es_ES
dc.relation.publisherversion http://ocs.editorial.upv.es/index.php/ILASS/ILASS2017/paper/view/4752 es_ES
dc.description.upvformatpinicio 855 es_ES
dc.description.upvformatpfin 872 es_ES
dc.type.version info:eu repo/semantics/publishedVersion es_ES
dc.relation.pasarela 4752 es_ES


This item appears in the following Collection(s)

Show simple item record