Journal ArticleDOI
Higher frequencies in stall flutter moment development
Ethan C. Culler,John Farnsworth +1 more
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TLDR
In this article, an experimental study of stall flutter kinematic, moment, and fluid dynamic development is presented, focusing upon understanding the higher frequency content observed in stall-flutter limit cycle oscillations and how that content relates to specific fluid dynamic structures and states.About:
This article is published in Journal of Fluids and Structures.The article was published on 2019-02-01. It has received 12 citations till now. The article focuses on the topics: Pitching moment & Stall (fluid mechanics).read more
Citations
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Journal ArticleDOI
Modeling the interplay between the shear layer and leading edge suction during dynamic stall
Julien Deparday,Karen Mulleners +1 more
TL;DR: In this article, an improved model of the leading edge suction parameter based on thin airfoil theory was developed to predict the value and timing of the maximum leading-edge suction on a pitching aerodynamic model.
Journal ArticleDOI
Reduced-order modeling of dynamic stall using neuro-fuzzy inference system and orthogonal functions
TL;DR: In this paper, the authors presented a numerical simulation of an airfoil undergoing a deep dynamic stall employing a computational fluid dynamics code, where overset and polyhedral grid techniques were adopted to accurately simulate the flow field at high angles of attack.
Journal ArticleDOI
High-fidelity computational fluid dynamics methods for the simulation of propeller stall flutter
TL;DR: A time-marching aeroelastic method developed for the study of propeller flutter is presented and validated and it is shown that this method can be applied to stall, whirl, and classical flutter.
Journal ArticleDOI
Active Flow Control of a Wing Section in Stall Flutter by Dielectric Barrier Discharge Plasma Actuators
TL;DR: In this article , two dielectric barrier discharge (DBD) plasma actuators have been employed simultaneously to exert dual-point excitation to the baseline flow to modify stall flutter oscillations of a NACA 0015 wing section.
References
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Journal ArticleDOI
On the identification of a vortex
Jinhee Jeong,Fazle Hussain +1 more
TL;DR: In this article, the authors propose a definition of vortex in an incompressible flow in terms of the eigenvalues of the symmetric tensor, which captures the pressure minimum in a plane perpendicular to the vortex axis at high Reynolds numbers, and also accurately defines vortex cores at low Reynolds numbers.
Eddies Stream, and Convergence Zones in Turbulent Flows
TL;DR: In this article, a set of objective criteria were found which describe regions in which the streamlines circulate, converge, or diverge, and form high streams of high velocity flow.
Eddies, streams, and convergence zones in turbulent flows
TL;DR: In this article, a set of objective criteria were found which describe regions in which the streamlines circulate, converge, or diverge, and form high streams of high velocity flow.
Book
A Modern Course in Aeroelasticity
TL;DR: Aeroelasticity in Turbomachines has been studied in this article for complex and nonlinear unsteady flows in turbomachines, where the model of fluid-structure interaction has been used.
Journal ArticleDOI
State-Space Representation of Aerodynamic Characteristics of an Aircraft at High Angles of Attack
Mikhail Goman,A. N. Khrabrov +1 more
TL;DR: In this article, the state-space representation of aerodynamic forces and moments for unsteady aircraft motion is proposed, considering separated flow about an airfoil and flow with vortex breakdown about a slender delta wing gives the base for mathematical modeling using internal variables describing the flow state.
Related Papers (5)
Flutter analysis of a two-dimensional airfoil with cubic non-linear restoring force
B.H.K. Lee,P. LeBlanc +1 more