Aerodynamic design of a high-efficiency two-stage aeronautical axial gas turbine, using free vortex and flow streamline curvature
محل انتشار: هفتمین همایش ملی توربین گاز
سال انتشار: 1401
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 345
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شناسه ملی سند علمی:
GTC07_010
تاریخ نمایه سازی: 3 مرداد 1401
چکیده مقاله:
In this study, a Matlab code has been developed to create a hybrid method for combination of free vortex (FV) and streamline curvature (SLC) methods in order to design multi-stage flow axis turbines. The achievement of this research is aerodynamic design of a high-efficiency two-stage aeronautical gas turbine with design pressure ratio of ۶.۶۸, using the developed code package. A validation on application of the hybrid method has been investigated by through ۳-D numerical flow simulation of mentioned turbine using CFX software to compare the performance parameters and flow properties at operational points. Value of performance parameters such as total outlet pressure, total outlet temperature, outlet density and outlet Mach number of the turbine obtained from the SLC method differ from that of numerical simulations results by ۱۲.۵%, ۱.۳%, ۵.۵%۵ and ۱.۲۶%, respectively. Design total to total efficiency has been chosen ۹۹.۵%, which differs from its value obtained from the hybrid method and numerical simulation by ۰.۰۳% and ۴.۸۲%, respectively. Also, the total pressure ratio resulting from the simulation differs that of design value by ۹.۹۴%.
کلیدواژه ها:
Streamline curvature method ، Free Vertex method ، High Efficiency Axial gas turbine ۳D Design and Simulation
نویسندگان
Seyyed Mohammad Mahdi Abiri
University of Science and Technology of Iran-Tehran
Reza Taghavi Zonouz
University of Science and Technology of Iran-Tehran