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Experimental and numerical study on the initial tip structure evolution of diesel fuel spray under various injection and ambient pressures

Author

Listed:
  • Chen, Longfei
  • Li, Guangze
  • Huang, Dongqi
  • Zhang, Zhichao
  • Lu, Yiji
  • Yu, Xiaoli
  • Roskilly, Anthony Paul

Abstract

The formation and evolution of the initial spray structure of diesel fuel in the near-nozzle region under different injection and ambient pressures were studied. A visualisation experiment study on diesel fuel using long-distance microscopy and nanosecond-pulse flashlight was performed. Four types of spray tip structure were identified and named as ‘needle’, ‘bubble’, ‘mushroom’ and ‘umbrella’. The obtained high-resolution images revealed that both injection pressure and ambient pressure had a significant influence on the evolution of the spray tip structure. The measurement of the spray penetration and spray angle showed that the increase of injection pressure enhanced spray dispersion while the increase of ambient pressure exhibited an opposite effect. In order to provide a better understanding on the formation mechanism, a numerical study based on large eddy simulation (LES) and volume of fluid (VOF) interface capturing technique was conducted.

Suggested Citation

  • Chen, Longfei & Li, Guangze & Huang, Dongqi & Zhang, Zhichao & Lu, Yiji & Yu, Xiaoli & Roskilly, Anthony Paul, 2019. "Experimental and numerical study on the initial tip structure evolution of diesel fuel spray under various injection and ambient pressures," Energy, Elsevier, vol. 186(C).
    • Handle: RePEc:eee:energy:v:186:y:2019:i:c:s0360544219315397
    DOI: 10.1016/j.energy.2019.115867
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    Citations

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    Cited by:

    1. Zhang, Qiankun & Xia, Jin & He, Zhuoyao & Wang, Jianping & Liu, Rui & Zheng, Liang & Qian, Yong & Ju, Dehao & Lu, Xingcai, 2021. "Experimental study on spray characteristics of six-component diesel surrogate fuel under sub/trans/supercritical conditions with different injection pressures," Energy, Elsevier, vol. 218(C).
    2. Djati Wibowo Djamari & Muhammad Idris & Permana Andi Paristiawan & Muhammad Mujtaba Abbas & Olusegun David Samuel & Manzoore Elahi M. Soudagar & Safarudin Gazali Herawan & Davannendran Chandran & Abdu, 2022. "Diesel Spray: Development of Spray in Diesel Engine," Sustainability, MDPI, vol. 14(23), pages 1-22, November.
    3. Zhou, Yifan & Qi, Wenyuan & Zhang, Yuyin, 2020. "Investigation on cyclic variation of diesel spray and a reconsideration of penetration model," Energy, Elsevier, vol. 211(C).
    4. Shin, Jisoo & Kim, Donghwan & Seo, Jeawon & Park, Sungwook, 2020. "Effects of the physical properties of fuel on spray characteristics from a gas turbine nozzle," Energy, Elsevier, vol. 205(C).

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