کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8057354 1520055 2018 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of SD7003 airfoil performance using TBL and CBL at low Reynolds numbers
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی هوافضا
پیش نمایش صفحه اول مقاله
Optimization of SD7003 airfoil performance using TBL and CBL at low Reynolds numbers
چکیده انگلیسی
Both blowing and suction crossing the boundary layer have been widely implemented on the airfoils top surface to control the flow field. These techniques have significant effects on the aerodynamic characteristics of the airfoil. Both methods were applied to Selig-Donovan 7003 (SD7003) airfoil at Reynolds number of 60,000. An optimization technique was used to find the optimum parameters of blowing/suction using genetic algorithm (GA). Considering that computational fluid dynamics CFD is time-consuming for determination of the objective function, an artificial neural network was coupled with GA in order to achieve this aim. We used aerodynamic performance, defined as lift to drag ratio (L/D), as the objective function to find the optimal configuration. Results showed that application of active flow control methods caused a reduction in flow separation zone which resulted in improvement of aerodynamic coefficients. Moreover, it was found that suction was more effective than blowing as a control mechanism.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aerospace Science and Technology - Volume 79, August 2018, Pages 199-211
نویسندگان
, , ,