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Journal of Applied Fluid Mechanics، جلد ۱۳، شماره ۱، صفحات ۱۱۹-۱۳۲
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عنوان انگلیسی Parameter and Design Analysis for Gasoline Direct Injection Injector using CFD and Design of Experiments
چکیده انگلیسی مقاله Numerical modeling of internal nozzle flow can be regarded as an essential investigation in the field of gasoline direct injection system of combustion engines since it is directly connected with fuel spray atomization and subsequently efficiency of exhaust gas emission. Internal nozzle flow can be changed and formed according to several parameters such as; system pressure, chosen fuel type, the orientation of spray holes according to injector axis, conicity of spray holes and distribution of spray holes on valve-seat, etc. The changes in these parameters also affect the formation of cavitation inside of whole domain, spray angle and create wall-wetting on the spray hole surfaces. The present work investigates the parameter and design analysis in the valve-seat region of direct gasoline injection (GDI) injector using Computational Fluid Dynamics (CFD) and Design of Experiments (DOE). CFD is employed to study the behaviors of internal flow inside the valve-seat region according to several design parameters, whereas a mixed-level factorial design is used to test the significance of the effects on the response variables. In conclusion, the effects of the most significant factors on response parameters as amount of vapor formation, spray (Tau) angle, and pre-hole wall wetting are determined for further efficient design.
کلیدواژه‌های انگلیسی مقاله CFD, nozzle simulation, Gasoline direct injection, In, Cavitation, Design of experiments
نویسندگان مقاله B. Biçer |
Robert Bosch A. S. BTSO Organized Industrial Zone, Eflatun Cad. No 9. Bursa, Turkey

A. Yurtkuran |
Department of Industrial Engineering, Uludag University, Bursa, Turkey

نشانی اینترنتی https://www.jafmonline.net/article_904_f51441b20474558621f6e0aa26bdc1a9.pdf
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