Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform)

Hiroto Nagai; Takumi Ito; Keita Miura; Toshiyuki Hayase; Koji Isogai

doi:10.1299/kikaib.73.2450

Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform)

Hiroto Nagai, Takumi Ito, Keita Miura, Toshiyuki Hayase, Koji Isogai

Aerospace Structures and Structural Dynamics Laboratory

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

An experimental study of the aerodynamic characteristics of 3-dimensional flapping wing in hovering flight is conducted in the wide range of parameters, which are Reynolds number, reduced frequency and wing planforms. Lift and power are measured on scaled flapping wings, which mimic bumblebee and cicada wings, and which are delta wings with different locations of maximum chord. The results show that lift and power (1) are almost unchanged in Re = 800 -5 000, (2) increase as the reduced frequency increases, although the effeciency is constant, and (3) increase as the location of maximum chord moves from wing base to tip, although the effeciency decreases.

Original language	English
Pages (from-to)	2450-2458
Number of pages	9
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	73
Issue number	12
DOIs	https://doi.org/10.1299/kikaib.73.2450
Publication status	Published - Dec 2007

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.73.2450

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Nagai, H., Ito, T., Miura, K., Hayase, T., & Isogai, K. (2007). Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform). Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 73(12), 2450-2458. https://doi.org/10.1299/kikaib.73.2450

Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform). / Nagai, Hiroto; Ito, Takumi; Miura, Keita; Hayase, Toshiyuki; Isogai, Koji.

In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 73, No. 12, 12.2007, p. 2450-2458.

Research output: Contribution to journal › Article › peer-review

Nagai, H, Ito, T, Miura, K, Hayase, T & Isogai, K 2007, 'Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform)', Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, vol. 73, no. 12, pp. 2450-2458. https://doi.org/10.1299/kikaib.73.2450

Nagai H, Ito T, Miura K, Hayase T, Isogai K. Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform). Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 2007 Dec;73(12):2450-2458. https://doi.org/10.1299/kikaib.73.2450

Nagai, Hiroto ; Ito, Takumi ; Miura, Keita ; Hayase, Toshiyuki ; Isogai, Koji. / Measurement of unsteady aerodynamic forces of 3D flapping wing in hovering flight (1st report, influences of Reynolds number, reduced frequency and planform). In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 2007 ; Vol. 73, No. 12. pp. 2450-2458.

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