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Fan L, Fu X, Hu M, Yan Y, Zuo Z, Han Z, Fang J, Xiao B. Calculation method of spherically expanding flame propagation radius to consider ignition electrode effects. Sci Rep 2024; 14:8435. [PMID: 38600253 PMCID: PMC11006940 DOI: 10.1038/s41598-024-58940-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 04/04/2024] [Indexed: 04/12/2024] Open
Abstract
Ignition electrodes have an immense impact on the accurate measurement of the flame propagation spherical radius. In this study, a flame-radius calculation method is designed. The method is able to eliminate effects due to the ignition electrodes. The adaptability and optimization effects of the proposed method are analyzed. The results show that the ratio of the angle is affected by the ignition electrodes under the Han II method. There are three obvious divisions include a high-value area, a sharp-variation area, and a mild-variation area. The ratio of the angle affected by the ignition electrodes is only applicable to the mild-variation region when the flame presents respective convex and concave distributions. For these distributions, the increment rate of the mean radius is 0.4-0.85% and 0.42-3.19%. The reduced rate of the standard deviation of the radius extraction value is 11.91-22.1% and 5.13-17.99%, and the reduced rate of the radius extraction value range is 20.32-39.51% and 0.32-8.09%.
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Affiliation(s)
- Likang Fan
- Key Laboratory of Fluid and Power Machinery of Ministry of Education, Xihua University, Chengdu, 610039, China
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Xin Fu
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Mingjie Hu
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Yan Yan
- Key Laboratory of Fluid and Power Machinery of Ministry of Education, Xihua University, Chengdu, 610039, China
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Zinong Zuo
- Key Laboratory of Fluid and Power Machinery of Ministry of Education, Xihua University, Chengdu, 610039, China
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Zhiqiang Han
- Key Laboratory of Fluid and Power Machinery of Ministry of Education, Xihua University, Chengdu, 610039, China.
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China.
- Engineering Research Center of Ministry of Education for Intelligent Air-Ground Fusion Vehicles and Control, Xihua University, Chengdu, 610039, China.
| | - Jia Fang
- Key Laboratory of Fluid and Power Machinery of Ministry of Education, Xihua University, Chengdu, 610039, China
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China
| | - Bang Xiao
- Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Xihua University, Chengdu, 610039, China
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