Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion

المؤلفون المشاركون

Zhao, Liangyu
Yang, Shuxing

المصدر

Mathematical Problems in Engineering

العدد

المجلد 2010، العدد 2010 (31 ديسمبر/كانون الأول 2010)، ص ص. 1-19، 19ص.

الناشر

Hindawi Publishing Corporation

تاريخ النشر

2010-12-15

دولة النشر

مصر

عدد الصفحات

19

التخصصات الرئيسية

هندسة مدنية

الملخص EN

In order to investigate the impact of airfoil thickness on flapping performance, the unsteady flow fields of a family of airfoils from an NACA0002 airfoil to an NACA0020 airfoil in a pure plunging motion and a series of altered NACA0012 airfoils in a pure plunging motion were simulated using computational fluid dynamics techniques.

The “class function/shape function transformation“ parametric method was employed to decide the coordinates of these altered NACA0012 airfoils.

Under specified plunging kinematics, it is observed that the increase of an airfoil thickness can reduce the leading edge vortex (LEV) in strength and delay the LEV shedding.

The increase of the maximum thickness can enhance the time-averaged thrust coefficient and the propulsive efficiency without lift reduction.

As the maximum thickness location moves towards the leading edge, the airfoil obtains a larger time-averaged thrust coefficient and a higher propulsive efficiency without changing the lift coefficient.

نمط استشهاد جمعية علماء النفس الأمريكية (APA)

Zhao, Liangyu& Yang, Shuxing. 2010. Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion. Mathematical Problems in Engineering،Vol. 2010, no. 2010, pp.1-19.
https://search.emarefa.net/detail/BIM-489600

نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)

Zhao, Liangyu& Yang, Shuxing. Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion. Mathematical Problems in Engineering No. 2010 (2010), pp.1-19.
https://search.emarefa.net/detail/BIM-489600

نمط استشهاد الجمعية الطبية الأمريكية (AMA)

Zhao, Liangyu& Yang, Shuxing. Influence of Thickness Variation on the Flapping Performance of Symmetric NACA Airfoils in Plunging Motion. Mathematical Problems in Engineering. 2010. Vol. 2010, no. 2010, pp.1-19.
https://search.emarefa.net/detail/BIM-489600

نوع البيانات

مقالات

لغة النص

الإنجليزية

الملاحظات

Includes bibliographical references

رقم السجل

BIM-489600