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J. Köngeter (1999)
PIV with high temporal resolution for the determination of local pressure reductions from coherent turbulence phenomenaExperiments in Fluids, 29
D. Ragni, B. Oudheusden, F. Scarano (2012)
3D pressure imaging of an aircraft propeller blade-tip flow by phase-locked stereoscopic PIVExperiments in Fluids, 52
D. Rubinstein, U. Shavit (2002)
Computation of Pressure Distribution Using PIV Velocity Data
(2010)
Slip: simple library for image processing
C. Atkinson, S. Coudert, J. Foucaut, M. Stanislas, J. Soria (2011)
The accuracy of tomographic particle image velocimetry for measurements of a turbulent boundary layerExperiments in Fluids, 50
Xiaofeng Liu, J. Katz (2006)
Instantaneous pressure and material acceleration measurements using a four-exposure PIV systemExperiments in Fluids, 41
B. Oudheusden (2013)
PIV-based pressure measurementMeasurement Science and Technology, 24
Y. Jeon, L. Chatellier, L. David (2014)
Fluid trajectory evaluation based on an ensemble-averaged cross-correlation in time-resolved PIVExperiments in Fluids, 55
R. Kat, B. Oudheusden (2012)
Instantaneous planar pressure determination from PIV in turbulent flowExperiments in Fluids, 52
L. David, T. Jardin, P. Braud, A. Farcy (2012)
Time-resolved scanning tomography PIV measurements around a flapping wingExperiments in Fluids, 52
M. Unal, J. Lin, D. Rockwell (1997)
FORCE PREDICTION BY PIV IMAGING: A MOMENTUM-BASED APPROACHJournal of Fluids and Structures, 11
T. Jardin, L. Chatellier, A. Farcy, L. David (2009)
Correlation between vortex structures and unsteady loads for flapping motion in hoverExperiments in Fluids, 47
R. Kat, B. Ganapathisubramani (2013)
Pressure from particle image velocimetry for convective flows: a Taylor’s hypothesis approachMeasurement Science and Technology, 24
D. Kurtulus, F. Scarano, L. David (2007)
Unsteady aerodynamic forces estimation on a square cylinder by TR-PIVExperiments in Fluids, 42
J. Charonko, Cameron King, Barton Smith, P. Vlachos (2010)
Assessment of pressure field calculations from particle image velocimetry measurementsMeasurement Science and Technology, 21
F. Scarano (2012)
Tomographic PIV: principles and practiceMeasurement Science and Technology, 24
F. Noca, D. Shiels, D. Jeon (1999)
A COMPARISON OF METHODS FOR EVALUATING TIME-DEPENDENT FLUID DYNAMIC FORCES ON BODIES, USING ONLY VELOCITY FIELDS AND THEIR DERIVATIVESJournal of Fluids and Structures, 13
The flow around a flapping wing is characterized by an unsteady evolution of three-dimensional vortices, which are one of the main sources of loads. The difficulty in directly measuring such low forces by means of sensors and the need of the characterization of the evolution of the flow have lead to the evaluation of loads using the integral form of the momentum equation. This paper describes methods for evaluating instantaneous loads and three-dimensional pressure fields using 3D3C velocity fields only. An evaluation of the accuracy of these methods using DNS velocity fields is presented. Loads and pressure fields are then calculated using scanning tomography PIV velocity fields, around a NACA 0012 airfoil for a flapping motion in a water tank at a Reynolds number of 1,000. The results suggest a sufficient accuracy of calculated pressure fields for a global analysis of the topology of the flow and for the evaluation of loads by integrating the calculated pressure field over the surface of the wing.
Experiments in Fluids – Springer Journals
Published: Jan 10, 2015
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