Methods for Digital Particle Image Sizing (DPIS): Comparisons and improvements

Brady, Michael R.; Raben, Samuel; Vlachos, Pavlos P.

doi:10.1016/j.flowmeasinst.2009.08.001

Cited by 27 publications

(22 citation statements)

References 25 publications

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“…Particle images were identified using a dynamic thresholding method, which allows for the detection of dimmer particles in close proximity to brighter ones. Their position was determined using a least squares Gaussian estimation with subpixel accuracy (Brady et al 2009). The multiparametric matching allows for the particles to be matched using not only their position but also a weighted contribution of their size and intensity between image pairs.…”

Section: Discussionmentioning

confidence: 99%

Main results of the 4th International PIV Challenge

et al. 2016

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Section: Discussionmentioning

confidence: 99%

Main results of the 4th International PIV Challenge

et al. 2016

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“…in the scale of kHz). Brady et al (2009) introduced a novel particle image sizing method that can be used in PIV that enables simultaneous evaluations of velocity as well as size of particle in multi-phase flows. The advantages of the PIV measurement technique is that it can be used to determine the characteristics of a two-dimensional velocity field and provide information about turbulence intensity.…”

Section: Particle Image Velocimetry (Piv)mentioning

confidence: 99%

A review of turbulence measurement techniques for flotation

Meng

Tabosa

Xie

et al. 2016

Minerals Engineering

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“…To obtain the velocity vector, a centroid matching approach between the associated particles of two consecutive frames is chosen (see e.g [14][15][16]). The ambiguity problem of particle association in dense laden flows is solved by utilizing the idea presented by Hering et al [17].…”

Section: Aircraft Engine Flowmentioning

confidence: 99%

Particle laden flow investigations in special purpose dry-ice blasting applications

Rudek¹,

Russ²,

Duignan³

2016

Int. J. CMEM

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A high speed camera investigation is presented into the behavior of CO 2 dry-ice particles in an application of dry-ice blasting to the defouling of commercial aircraft engine compressors. An image acquisition system is deployed in the compressor section of an aircraft engine and is used to determine the evolution of dry-ice particle size and velocity from the nozzle exit to the entrance to the engine's high pressure compressor as the engine is cranked. A comparison study between CO 2 dry-ice particle laden flows and airflows with single Polyoxymethylene (POM) particles of various diameters is also presented. Measurements are made using a range of blasting system pressures and using sonic and supersonic blasting nozzles. The behavior of large CO 2 dry-ice particles (d P ≥ 1 mm) in this discontinuously and inhomogenously laden flow is compared to that of single POM particles under similar flow conditions and is found to behave similarly. The experiments presented turn out to be useful for supporting development of special purpose dry-ice blasting systems.

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Methods for Digital Particle Image Sizing (DPIS): Comparisons and improvements

Cited by 27 publications

References 25 publications

Main results of the 4th International PIV Challenge

Main results of the 4th International PIV Challenge

A review of turbulence measurement techniques for flotation

Particle laden flow investigations in special purpose dry-ice blasting applications

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