Computational Study of Unsteady Three Dimensional Wing in Pitching Motion Utilizing Linear Vortex Panel Method
نویسندگان
چکیده
منابع مشابه
The unsteady three-dimensional wake produced by a trapezoidal pitching panel
Particle Image Velocimetry (PIV) is used to investigate the three-dimensional wakes of rigid pitching panels with a trapezoidal geometry, chosen to model idealized fish caudal fins. Experiments are performed for Strouhal numbers from 0.17 to 0.56 for two different trailing edge pitching amplitudes. A Lagrangian Coherent Structure (LCS) analysis is employed to investigate the formation and evolu...
متن کاملChaotic motion of light particles in an unsteady three-dimensional vortex: experiments and simulation.
We study the chaotic motion of a small rigid sphere, lighter than the fluid in a three-dimensional vortex of finite height. Based on the results of Eulerian and Lagrangian measurements, a sequence of models is set up. The time-independent model is a generalization of the Burgers vortex. In this case, there are two types of attractors for the particle: a fixed point on the vortex axis and a limi...
متن کاملDynamic pitching of an elastic rectangular wing in hovering motion
In order to study the role of the passive deformation in the aerodynamics of insect wings, we computationally model the three-dimensional fluid–structure interaction of an elastic rectangular wing at a low aspect ratio during hovering flight. The code couples a viscous incompressible flow solver based on the immersedboundary method and a nonlinear finite-element solver for thin-walled structure...
متن کاملCalculation of Three-dimensional Unsteady Sheet Cavitation by a Simple Suraface Panel Method “sqcm”
This paper presents a calculation method for the 3-D unsteady cavitating hydrofoil problem. The method is based on a simple surface panel method “SQCM” which satisfies easily the Kutta condition even in the unsteady problem. This method is applied to the Wagner problem, heaving hydrofoil and the hydrofoil in sinusoidal gust. We show some calculated results for partially cavitating and supercavi...
متن کاملComputational Simulations of a Three- Dimensional High-Lift Wing
Highly resolved computational simulations of a three-dimensional high-lift wing are presented. The steady Reynolds Averaged Navier-Stokes computations are geared towards understanding the flow intricacies associated with inboard and outboard flap side edges. Both moderate and high flap deflections are simulated. Computed surface pressure fields accurately capture the footprint of vortices at fl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of the Korean Society for Aeronautical & Space Sciences
سال: 2003
ISSN: 1225-1348
DOI: 10.5139/jksas.2003.31.6.001