Investigation on Primary Breakup of High-Pressure Diesel Spray Atomization by Method of Automatic Identifying Droplet Feature Based on Eulerian–Lagrangian Model

Yan Lei, Yue Wu, Dingwu Zhou, Kaixin Wang, Tao Qiu, Yuwan Deng and Dan Zhou
Additional contact information
Yan Lei: Department of Automotive Engineering, Beijing University of Technology, Beijing 100124, China
Yue Wu: Department of Automotive Engineering, Beijing University of Technology, Beijing 100124, China
Dingwu Zhou: Department of Automotive Application, Hunan Automotive Engineering Vocational College, Zhuzhou 412001, China
Kaixin Wang: Beijing Aerospace Technology Institute, Beijing 100176, China
Tao Qiu: Department of Automotive Engineering, Beijing University of Technology, Beijing 100124, China
Yuwan Deng: Department of Automotive Engineering, Beijing University of Technology, Beijing 100124, China
Dan Zhou: Art Design Institute, Hunan Women’s University, Changsha 410004, China

Energies, 2022, vol. 15, issue 3, 1-18

Abstract: To investigate primary breakup close to an injector, this paper presents both experimental and numerical research on high-pressure common-rail diesel injection. We propose a new method named SD-ELSA model to realize automatically identifying droplet features for high-pressure diesel spray based on the classic ELSA (Eulerian Lagrangian Spray Atomization) model; this method is suitable for varied injection operation conditions. The SD-ELSA first identifies the liquid bulk due to breakup of the continuous phase in near field, and then converts the Eulerian liquid bulk into Lagrangian particles to complete the calculation of the total spray atomization. The SD-ELSA model adopts two key criteria, i.e., the sphericity (S) and the particle diameter (D); the qualified liquid mass is transformed into Lagrangian particle, realizing the coupling of the Eulerian–Lagrangian model. The SD-ELSA model illustrates the total diesel spray atomization process from the breakup liquid column to the droplets.

Keywords: spray atomization; breakup model; sphericity; particle diameter; ELSA; diesel (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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