Study on Dynamic Stall Control of Rotor Airfoil Based on Coflow Jet
المؤلفون المشاركون
Zhang, Weiguo
You, Yancheng
Liu, Jiaqi
Chen, Rongqian
Qiu, Ruofan
المصدر
International Journal of Aerospace Engineering
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-15، 15ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-12-16
دولة النشر
مصر
عدد الصفحات
15
الملخص EN
In this study, a dynamic stall control strategy, called the co-flow jet (CFJ), is applied to the rotor airfoil.
The effect of the CFJ on the unsteady dynamic stall characteristics of the rotor airfoil is numerically investigated via numerical simulations of the unsteady Reynolds-averaged Navier-Stokes (URANS) equations coupled with the Spalart-Allmaras (S-A) turbulence model.
The numerical methods are validated by a NACA0012 pitching airfoil case and a NACA6415 airfoil case based on the CFJ, and good agreement with experiments is found.
Via the study of the typical conditions of CFJ control to suppress the dynamic stall of the OA212 rotor airfoil, it is verified that this method has a good effect on dynamic stall suppression.
The diffusion and blending of the turbulent shear layer between the CFJ injection jet and the main flow excite the main flow and enhance its ability to resist the reverse pressure gradient; this suppresses the generation and development of the separation vortex, thereby enhancing the aerodynamic characteristics, improving the hysteresis effect, and increasing the system stability.
On this basis, the control parameters of the CFJ are further studied, including the influences of the jet momentum coefficient and the positions and sizes of the injection and suction slots on suppressing the dynamic stall of the rotor airfoil.
It is found that there is a jet momentum coefficient that optimizes the suppression effect of the dynamic stall of the rotor airfoil.
Moreover, the position of the injection slot is found to have a greater effect on the dynamic stall suppression, while the size of the injection slot and the position and size of the suction slot have little effect.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Liu, Jiaqi& Chen, Rongqian& Qiu, Ruofan& You, Yancheng& Zhang, Weiguo. 2020. Study on Dynamic Stall Control of Rotor Airfoil Based on Coflow Jet. International Journal of Aerospace Engineering،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1168348
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Liu, Jiaqi…[et al.]. Study on Dynamic Stall Control of Rotor Airfoil Based on Coflow Jet. International Journal of Aerospace Engineering No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1168348
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Liu, Jiaqi& Chen, Rongqian& Qiu, Ruofan& You, Yancheng& Zhang, Weiguo. Study on Dynamic Stall Control of Rotor Airfoil Based on Coflow Jet. International Journal of Aerospace Engineering. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1168348
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1168348
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر