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: 187

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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.

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,