Load-estimation techniques for unsteady incompressible flows

DE Rival, B Oudheusden - Experiments in Fluids, 2017 - Springer
In a large variety of fluid-dynamic problems, it is often impossible to directly measure the
instantaneous aerodynamic or hydrodynamic forces on a moving body. Examples include …

Dynamic experimental rigs for investigation of insect wing aerodynamics

P Broadley, MRA Nabawy… - Journal of the …, 2022 - royalsocietypublishing.org
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 …

An impulse-based approach to estimating forces in unsteady flow

WR Graham, CWP Ford, H Babinsky - Journal of Fluid Mechanics, 2017 - cambridge.org
The ready availability of full-field velocity measurements in present-day experiments has
kindled interest in using such data for force estimation, especially in situations where direct …

The kinematic genesis of vortex formation due to finite rotation of a plate in still fluid

MJ David, M Mathur, RN Govardhan… - Journal of Fluid …, 2018 - cambridge.org
We present a combined experimental and numerical study of an idealized model of the
propulsive stroke of the turning manoeuvre in fish. Specifically, we use the framework of …

On calculating forces from the flow field with application to experimental volume data

AC DeVoria, ZR Carr, MJ Ringuette - Journal of fluid mechanics, 2014 - cambridge.org
The use of flow field information to compute the fluid dynamic force on a body is investigated
with specific application to experimental volumetric measurements. The calculation method …

Reduced-order modeling for dynamic mode decomposition without an arbitrary sparsity parameter

J Graff, MJ Ringuette, T Singh, FD Lagor - AIAA Journal, 2020 - arc.aiaa.org
Dynamic mode decomposition (DMD) yields a linear, approximate model of a system's
dynamics that is built from data. This paper seeks to reduce the order of this model by …

Vortex shedding and induced forces in unsteady flow

M Graham, J Li - The Aeronautical Journal, 2024 - cambridge.org
This survey paper is concerned with vortex shedding from bodies in unsteady flow due
either to time dependent motion of the body in a still fluid or unsteady motion of the fluid …

Linking the unsteady force generation to vorticity for a translating and rotating cylinder

P Gehlert, H Babinsky - AIAA Scitech 2019 Forum, 2019 - arc.aiaa.org
T recent progression of technology has allowed for a significant development of micro-ariel
vehicles (MAV). Some imitate the flight of insects or small birds whilst others resort to a fixed …

An experimental investigation of Reynolds number effects on the aerodynamics of insect-like revolving wings

P Broadley, MR Nabawy - AIAA SCITECH 2022 Forum, 2022 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2022-0307. vid Revolving wing studies
for insect-like wing planforms provide useful insights into the aerodynamic characteristics …

The vortex-entrainment sheet in an inviscid fluid: theory and separation at a sharp edge

AC DeVoria, K Mohseni - Journal of Fluid Mechanics, 2019 - cambridge.org
In this paper a model for viscous boundary and shear layers in three dimensions is
introduced and termed a vortex-entrainment sheet. The vorticity in the layer is accounted for …