Experimental and Numerical Investigation of Air Flow Motion in Cylinder of Heavy Duty Diesel Engines
Publish place: Journal of Applied Fluid Mechanics، Vol: 13، Issue: 2
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
View: 137
This Paper With 11 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JAFM-13-2_013
تاریخ نمایه سازی: 15 دی 1400
Abstract:
In recent years, numerical simulations have become key tool for diesel engine combustion system development due to the requirement of the shorter development duration for the improved performance and better emission levels. In this study, an approach, which integrates numerical and experimental methods in order to characterize the flow field in diesel engine cylinder, is presented. The steady-flow port bench testing, PIV (Particle Image Velocimetry) measurements and numerical simulation methods are used to determine the flow behavior inside the cylinder. Numerical simulation method is validated by using experimental results in terms of mass flow rate and swirl ratio in cylinder. Mass flow rate values predicted within ۵ percent error and swirl ratio values predicted within ۱۰ percent error. This proves the viability of numerical method as an important alternative to port bench measurements. In addition to that, cylinder-to-cylinder variation and effects of surface roughness are investigated by swirl ratio measurements and optical diagnostic. Results showed that surface quality and manufacturing problems have significant effects on the swirl ratio in cylinder.
Keywords:
Authors
C. Demirkesen
Ford Otomotiv Sanayi A.Ş., İstanbul, Sancaktepe, ۳۴۸۸۵, Turkey
U. Colak
Department of Energy Science and Technology, Istanbul Technical University, İstanbul, Maslak, ۳۴۶۶۹, Turkey
I. H. Savci
Ford Otomotiv Sanayi A.Ş., İstanbul, Sancaktepe, ۳۴۸۸۵, Turkey
H. B. Zeren
Ford Otomotiv Sanayi A.Ş., İstanbul, Sancaktepe, ۳۴۸۸۵, Turkey