The Vortex Formation of an Unsteady Translating Plate with a Rotating Tip

Chowdhury, Juhi; Cook, Luke; Ringuette, Matthew

doi:10.2514/6.2019-0348

Cited by 5 publications

(2 citation statements)

References 47 publications

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“…Kinematic variations for one DoF systems, including rotational frequency and the number of rotations, are modified through controlling the actuation motor, affecting the generated forces. Despite the simplicity of one DoF systems, these set-ups are extremely useful to expose the main characteristics of the translation phase, particularly the LEV structure [57][58][59][60][61][62][63][64][65]. During this steadily revolving motion, the LEV is formed and hence the flow structure involved resembles that within the translation phase of a flapping wing.…”

Section: One Degree Of Freedom Rigsmentioning

confidence: 99%

“…Axial flow, a function of centripetal and Coriolis acceleration, has been shown to stabilize the LEV [27,35,88], where strong spanwise flow in the LEV region draining the vorticity toward the tip prevents the overexpansion and inevitable instability of the LEV itself. Likely a result of the strong induced spanwise flow, low Rossby numbers lead to greater TV coherence, which aids in LEV attachment [63].…”

Section: Experimental Rigsmentioning

confidence: 99%

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Dynamic experimental rigs for investigation of insect wing aerodynamics

Broadley

Nabawy

Quinn

et al. 2022

J. R. Soc. Interface.

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This paper provides a systematic and critical review of dynamic experimental rigs used for insect wing aerodynamics research. The goal is to facilitate meaningful comparison of data from existing rigs and provide insights for designers of new rigs. The scope extends from simple one degree of freedom rotary rigs to multi degrees of freedom rigs allowing various rotation and translation motions. Experimental methods are characterized using a consistent set of parameters that allows objective comparison of different approaches. A comprehensive catalogue is presented for the tested flow conditions (assessed through Reynolds number, Rossby number and advance ratio), wing morphologies (assessed through aspect ratio, planform shape and thickness to mean chord ratio) and kinematics (assessed through motion degrees of freedom). Links are made between the type of aerodynamic characteristics being studied and the type of experimental set-up used. Rig mechanical design considerations are assessed, and the aerodynamic measurements obtained from these rigs are discussed.

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