Role of Dipole Jet in Inclined Stroke Plane Kinematics of Insect Flight

doi:10.1007/s42235-020-0013-8

Journal of Bionic Engineering ›› 2020, Vol. 17 ›› Issue (1): 161-173.doi: 10.1007/s42235-020-0013-8

Role of Dipole Jet in Inclined Stroke Plane Kinematics of Insect Flight

Shanmugam Deepthi1, Sankaranarayanan Vengadesan1,2*

1. Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
2. Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, USA

收稿日期:2019-07-04 修回日期:2019-11-19 接受日期:2019-11-29 出版日期:2020-01-10 发布日期:2020-01-21
通讯作者: Sankaranarayanan Vengadesan E-mail:vengades@iitm.ac.in
作者简介:Shanmugam Deepthi1, Sankaranarayanan Vengadesan1,2*

Role of Dipole Jet in Inclined Stroke Plane Kinematics of Insect Flight

Shanmugam Deepthi1, Sankaranarayanan Vengadesan1,2*

1. Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
2. Department of Mechanical Engineering, Virginia Tech, Blacksburg, VA, USA

Received:2019-07-04 Revised:2019-11-19 Accepted:2019-11-29 Online:2020-01-10 Published:2020-01-21
Contact: Sankaranarayanan Vengadesan E-mail:vengades@iitm.ac.in
About author:Shanmugam Deepthi1, Sankaranarayanan Vengadesan1,2*

摘要/Abstract

摘要： The two-dimensional (2D) inclined stroke plane kinematics of insect wing is studied for various stroke plane angles using the Immersed
Boundary (IB) solver. The numerical results revealed the dominant lift enhancement mechanisms for this class of flows. The
generated dipole was analyzed to find the maximum velocity, inclination and spread. The analysis of these dipole characteristics for the
different stroke plane angles exposed the alternate method to study the vertical force variation with the stroke plane angles. Lift enhancement mechanisms and dipole characteristics complement the high vertical force coefficient for the stroke plane angle of 60? commonly used by dragonflies during hover. The location of the dipole identified a region of influence around the wing and demonstrated the role of the dipole jet in multi-body dynamics and wall effects.

关键词: insect flight, bionic, inclined stroke plane, dipole jet, flapping wing

Abstract: The two-dimensional (2D) inclined stroke plane kinematics of insect wing is studied for various stroke plane angles using the Immersed
Boundary (IB) solver. The numerical results revealed the dominant lift enhancement mechanisms for this class of flows. The
generated dipole was analyzed to find the maximum velocity, inclination and spread. The analysis of these dipole characteristics for the
different stroke plane angles exposed the alternate method to study the vertical force variation with the stroke plane angles. Lift enhancement mechanisms and dipole characteristics complement the high vertical force coefficient for the stroke plane angle of 60? commonly used by dragonflies during hover. The location of the dipole identified a region of influence around the wing and demonstrated the role of the dipole jet in multi-body dynamics and wall effects.

Key words: insect flight, bionic, inclined stroke plane, dipole jet, flapping wing

Shanmugam Deepthi, Sankaranarayanan Vengadesan. Role of Dipole Jet in Inclined Stroke Plane Kinematics of Insect Flight[J]. Journal of Bionic Engineering, 2020, 17(1): 161-173.

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Role of Dipole Jet in Inclined Stroke Plane Kinematics of Insect Flight

Role of Dipole Jet in Inclined Stroke Plane Kinematics of Insect Flight

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