Experimental Study of Air-assisted Spray Characteristics of Aviation Kerosene Piston Engine

GAO Hongli;ZHANG Fujun;WANG Sufei;WU Hao;ZHOU Lei;ZHAO Zhenfeng;LIU Bolan

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  • Sponsored by: China Association for Science and Technology (CAST)

    Editor-In-Chief: Xu Yida

    ISSN 1000-1093

    　

  • Hosted By: China Ordnance Society

    Published By: Acta Armamentarii

    CN 11-2176/TJ

Acta Armamentarii, a Chinese monthly journal, was first published in 1979. The journal is supervised by China Association for Science and Technology, sponsored by China Ordnance Society，and edited and published by Editorial Board of Acta Armamentarii. The Journal is included in all important domestic databases，and also collected by Engineering Index (EI, USA), Chemical Abstracts (CA, USA), Science Abstracts (SA, UK）, Abstract Journal (AJ, Russia), and Current Bibliography on Science and Technology(CBST).Acta Armamentarii has been selected into the journal Of Ordnance Science and Technology (Weapons Industry) Field Of High Quality Scientific and Technological Periodical Classification Catalogue (2022 edition), ranking T1, and the journal of Automotive Engineering Field of High Quality Scientific and technological Periodical classification Catalogue, ranking T2.
Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (5) : 927-937. DOI: 10.3969/j.issn.1000-1093.2019.05.004
Paper

Experimental Study of Air-assisted Spray Characteristics of Aviation Kerosene Piston Engine

  • GAO Hongli1,ZHANG Fujun1,2,WANG Sufei1, WU Hao1, ZHOU Lei3, ZHAO Zhenfeng1, LIU Bolan1
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Abstract

Based on the air-assisted spray characteristics of two-stroke aviation kerosene piston engine, the systemic experimental study was performed, and the effects of ambient pressure, temperature and control parameters，including fuel injection duration, interval among fuel and air, and air injection duration, on spray width, penetration, spatial diffusion area and Souter mean diameter were analyzed using a high-speed camera and a phase Doppler particle analyzer combining with image processing technology in order to obtain a desired gas mixture and ensure a good match between the spray characteristics and the time-varying environment of cylinder. The results show that the increased ambient pressure is not conducive to the spray spatial diffusion, while the atomization is worsen; and the increased ambient temperature is beneficial to the evaporation and breakup of fuel droplets in the case of constant control parameters; and the decreased or increased air injection duration facilitates the extension of spray along the direction of the nozzle, and promotes the expansion and breakup of droplets. The experimental results show that the air-assisted injection system has good adaptability. Key

Key words

aviationkerosene / pistonengine / air-assistedinjectionsystem / spaycharacteristic / phaseDopplerparticleanalyzer / Soutermeandiameter

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GAO Hongli,ZHANG Fujun,WANG Sufei, WU Hao, ZHOU Lei, ZHAO Zhenfeng, LIU Bolan. Experimental Study of Air-assisted Spray Characteristics of Aviation Kerosene Piston Engine. Acta Armamentarii. 2019, 40(5): 927-937 https://doi.org/10.3969/j.issn.1000-1093.2019.05.004

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第40卷第5期
2019年5月兵工学报ACTA
ARMAMENTARIIVol.40No.5May2019

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