Investigation of Turbine Blade Leading Edge Film Cooling: Application of Object Oriented Programming
- سال انتشار: 1391
- محل انتشار: اولین کنفرانس انتقال حرارت و جرم ایران
- کد COI اختصاصی: ICHMT01_068
- زبان مقاله: انگلیسی
- تعداد مشاهده: 2398
نویسندگان
Associate Professor
M.Sc. Student in Energy Conversion
M.Sc. Student in Energy Conversion
PH.D. candidate in Energy Conversion
چکیده
The present study encompasses direct comparisons between the OpenFOAM (Open Source Field Operation and Manipulation) which is a C++ object oriented library for the Computational Continuum Mechanics, and the commercial CFD code, FLUENT, concerning results of turbulent flow application such as the film cooling of a turbine blade leading edge. This is carried out to validate the OpenFOAM capability as a CFD research tool by considering, namely, the effects of blowing ratios of 0.4, 0.8, and 1.2 on film cooling adiabatic effectiveness. Besides, three-dimensional modeling is preformed on all features of the turbulent regime such as velocity and temperature field employing the RANS models and the turbulence model used in the PimpleFOAM Solver of OpenFOAM is the SST / k −w model. The present computational domain is built up based on an available experimental set-up. A cylindrical leading edge with a flat after-body represents the model blade leading edge. Considering the inaccuracy of RANS turbulence modeling, results agree fairly well far from the leading edge. Also, an increase in the blowing ratio causes a decrease in the adiabatic effectiveness. In addition, the OpenFOAM(method A) outputs are in good agreement with the FLUENT(method B)results and also with the experimental data which confirms the Open FOAM potential as a reliable CFD research tool.کلیدواژه ها
OpenFOAM, object oriented programming, blade film cooling, SST / k −w modelمقالات مرتبط جدید
اطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.