Effect of Pressure Difference and Needle Height on Formation of Cavitation in a real size nozzle
سال انتشار: 1400
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 409
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شناسه ملی سند علمی:
METEC04_016
تاریخ نمایه سازی: 4 شهریور 1400
چکیده مقاله:
Cavitation is investigated in a real size diesel injector nozzle. Schnerr and Sauer cavitation model is utilized to investigate cavitation phenomena. Then the primary results were validated with previous experiments done by Winklhofer and it was found that K-ε scheme has a better agreement with the mentioned experimental data. The effect of pressure difference and needle height were investigated on formation of vapor volume fraction has been investigated. It was found that at the same inlet pressure and needle height, decreasing outlet pressure, would increase length of cavitation. Moreover, it was found that at the same inlet and outlet pressures, any decrease in the value of needle height will decrease length of cavitation area.
کلیدواژه ها:
نویسندگان
Azadeh Yazdi
Department of civil and environmental engineering, George Mason University,
Nasim Sabetpour
Department of Computer Science, Iowa State University, Ames, Iowa,
Sepideh Amirahmadian
WSP, Ontario, Canada
Mohammadreza Nezamirad
Biological and Materials Engineering, University of South Florida, Tampa, FL,
Amirmasoud Hamedi
Department of Civil and Environmental Engineering, Florida International University, Miami, FL, USA,