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Effects of swirl and tumble motion on fuel vapor behavior and mixture stratification in lean burn engine |
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| Institution: | 1. Engine Research Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India;2. Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India;1. Mechanical Engineering of Biosystem Department, Shahrekord University, Shahrekord, Iran;2. Biosystem Engineering Department, Shahid Chamran University of Ahvaz, Ahvaz, Iran;3. Mechanical Engineering of Biosystem Department, Tarbiat Modaress University, Tehran, Iran;1. Department of Automotive Engineering, Tarsus Faculty of Technology, Mersin University, Mersin, Turkey;2. Department of Mechanical Engineering, Faculty of Engineering, Kırıkkale University, Kırıkkale, Turkey |
| Abstract: | Flow measurements using LDV and in-cylinder fuel vapor visualization using LIF (Laser Induced Fluorescence) were performed for various types of intake systems that generated several different combinations of swirl ratio and tumble ratio in the cylinder. The measured results indicate that there is a necessary condition for swirl ratio and tumble ratio to realize the charge stratification in the cylinder. Performance tests were also carried out to determine the combustion characteristics of each intake system. The features of combustion when the charge stratification was realized were analyzed. |
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