Multi-component, multi-dimensional PIV measurements of a flat-plate pitching motion

N. A. Buchmann; A. J. Buchner; K. Kilany; C. Atkinson; J. Soria

Multi-component, multi-dimensional PIV measurements of a flat-plate pitching motion

N. A. Buchmann, A. J. Buchner, K. Kilany, C. Atkinson, J. Soria

Mechanical & Aerospace Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

2 Citations (Scopus)

Abstract

Unsteady aerodynamics in the low Reynolds number domain is of great interest in applications to Micro Air Vehicles (MAVs), especially with respect to flow over, and in the wake of, pitching aerofoils. The massively separated flow over the upper surface of the pitching aerofoil allows for the production of large transient peaks of lift at this scale. This paper extends our previous work¹ to multi-dimensional (3D), multi-component (3C) measurements of this phenomenon by using Tomographic Particle Image Velocimetry (Tomo-PIV). For this purpose the three-component, three-dimensional (3C-3D) velocity fields in the wake of a flat plate undergoing a pitch-hold-return motion is investigated. The experiments are conducted in a water tunnel at a Reynolds number of 7,500 and a dimensionless pitching rate of K_c = 0.93. The instantaneous and phase averaged evolution of the trailing edge vortices is investigated, highlighting the three-dimensional organisation of the coherent vortex structure and its spanwise variation.

Original language	English
Title of host publication	40th AIAA Fluid Dynamics Conference
Publication status	Published - 2010
Event	40th AIAA Fluid Dynamics Conference - Chicago, IL, United States of America Duration: 28 Jun 2010 → 1 Jul 2010

Conference

Conference	40th AIAA Fluid Dynamics Conference
Country/Territory	United States of America
City	Chicago, IL
Period	28/06/10 → 1/07/10

Cite this

@inproceedings{f19a83c97a3c42498adcf485a4b39bcd,

title = "Multi-component, multi-dimensional PIV measurements of a flat-plate pitching motion",

abstract = "Unsteady aerodynamics in the low Reynolds number domain is of great interest in applications to Micro Air Vehicles (MAVs), especially with respect to flow over, and in the wake of, pitching aerofoils. The massively separated flow over the upper surface of the pitching aerofoil allows for the production of large transient peaks of lift at this scale. This paper extends our previous work1 to multi-dimensional (3D), multi-component (3C) measurements of this phenomenon by using Tomographic Particle Image Velocimetry (Tomo-PIV). For this purpose the three-component, three-dimensional (3C-3D) velocity fields in the wake of a flat plate undergoing a pitch-hold-return motion is investigated. The experiments are conducted in a water tunnel at a Reynolds number of 7,500 and a dimensionless pitching rate of Kc = 0.93. The instantaneous and phase averaged evolution of the trailing edge vortices is investigated, highlighting the three-dimensional organisation of the coherent vortex structure and its spanwise variation.",

author = "Buchmann, {N. A.} and Buchner, {A. J.} and K. Kilany and C. Atkinson and J. Soria",

year = "2010",

language = "English",

isbn = "9781617389221",

booktitle = "40th AIAA Fluid Dynamics Conference",

note = "40th AIAA Fluid Dynamics Conference ; Conference date: 28-06-2010 Through 01-07-2010",

}

TY - GEN

T1 - Multi-component, multi-dimensional PIV measurements of a flat-plate pitching motion

AU - Buchmann, N. A.

AU - Buchner, A. J.

AU - Kilany, K.

AU - Atkinson, C.

AU - Soria, J.

PY - 2010

Y1 - 2010

N2 - Unsteady aerodynamics in the low Reynolds number domain is of great interest in applications to Micro Air Vehicles (MAVs), especially with respect to flow over, and in the wake of, pitching aerofoils. The massively separated flow over the upper surface of the pitching aerofoil allows for the production of large transient peaks of lift at this scale. This paper extends our previous work1 to multi-dimensional (3D), multi-component (3C) measurements of this phenomenon by using Tomographic Particle Image Velocimetry (Tomo-PIV). For this purpose the three-component, three-dimensional (3C-3D) velocity fields in the wake of a flat plate undergoing a pitch-hold-return motion is investigated. The experiments are conducted in a water tunnel at a Reynolds number of 7,500 and a dimensionless pitching rate of Kc = 0.93. The instantaneous and phase averaged evolution of the trailing edge vortices is investigated, highlighting the three-dimensional organisation of the coherent vortex structure and its spanwise variation.

AB - Unsteady aerodynamics in the low Reynolds number domain is of great interest in applications to Micro Air Vehicles (MAVs), especially with respect to flow over, and in the wake of, pitching aerofoils. The massively separated flow over the upper surface of the pitching aerofoil allows for the production of large transient peaks of lift at this scale. This paper extends our previous work1 to multi-dimensional (3D), multi-component (3C) measurements of this phenomenon by using Tomographic Particle Image Velocimetry (Tomo-PIV). For this purpose the three-component, three-dimensional (3C-3D) velocity fields in the wake of a flat plate undergoing a pitch-hold-return motion is investigated. The experiments are conducted in a water tunnel at a Reynolds number of 7,500 and a dimensionless pitching rate of Kc = 0.93. The instantaneous and phase averaged evolution of the trailing edge vortices is investigated, highlighting the three-dimensional organisation of the coherent vortex structure and its spanwise variation.

UR - http://www.scopus.com/inward/record.url?scp=78649464883&partnerID=8YFLogxK

M3 - Conference Paper

AN - SCOPUS:78649464883

SN - 9781617389221

BT - 40th AIAA Fluid Dynamics Conference

T2 - 40th AIAA Fluid Dynamics Conference

Y2 - 28 June 2010 through 1 July 2010

ER -

Multi-component, multi-dimensional PIV measurements of a flat-plate pitching motion

Abstract

Conference

Other files and links

Cite this