The effect of swirl intensity on spray characteristics in single element lean direct injection combustor

Le Li, Jianqin Suo, Dinghuan Xu, Hongxia Liang, Longxi Zheng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A single element lean direct injection (LDI) module with convergent outlet is proposed to improve the spray distribution and combustion performance for LDI combustor. The experiments of fuel spray characteristics were conducted under different swirl intensity (S32, S38, S45) and air flowrate (0g/s, 3.3g/s, 5.2g/s, 6.8g/s). The experimental results show that the nozzle flow number of the swirler S38 is larger than that of the swirler S32 and S45, and the nozzle flow number decrease slightly when air is added. With the increase of swirl intensity, the spray cone angle increased significantly. The drops size of spray is decreased with the increase of swirl intensity and air flowrate, and the effect of air flowrate on fuel atomization quality is much greater than swirl intensity.

Original languageEnglish
Title of host publicationAIAA Propulsion and Energy Forum and Exposition, 2019
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105906
DOIs
StatePublished - 2019
EventAIAA Propulsion and Energy Forum and Exposition, 2019 - Indianapolis, United States
Duration: 19 Aug 201922 Aug 2019

Publication series

NameAIAA Propulsion and Energy Forum and Exposition, 2019

Conference

ConferenceAIAA Propulsion and Energy Forum and Exposition, 2019
Country/TerritoryUnited States
CityIndianapolis
Period19/08/1922/08/19

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