On the Lagrangian features of circular and semicircular jets via 3D Particle Tracking Velocimetry

J. T. Kim; Z. Zhang; A. Liberzon; Y. Zhang; L. P. Chamorro

doi:10.1016/j.expthermflusci.2016.05.003

On the Lagrangian features of circular and semicircular jets via 3D Particle Tracking Velocimetry

J. T. Kim, Z. Zhang, A. Liberzon, Y. Zhang, L. P. Chamorro

School of Mechanical Engineering

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

Abstract

Three-dimensional Particle Tracking Velocimetry was employed to characterize jets from circular and semi-circular pipes in the intermediate and far fields. Grid-interpolated velocity were used to validate the measurements, and confirmed the negligible effect of the pipe shape on the mean flow in the intermediate field. Several volumetric regions were defined to get Lagrangian statistical description of the flow from categorized particle trajectories. Probability density functions of the velocity fluctuations, particle acceleration, and curvature of the trajectories revealed common and distinctive features of the jets. The first one showed departure from the Gaussian distribution away from the core, and the acceleration exhibited heavy tails in the two jets; however the curvature pdf revealed distinctive footprint of the pipe shape.

Original language	English
Pages (from-to)	306-316
Number of pages	11
Journal	Experimental Thermal and Fluid Science
Volume	77
DOIs	https://doi.org/10.1016/j.expthermflusci.2016.05.003
State	Published - 1 Oct 2016

Keywords

Acceleration
Curvature
Jets
Lagrangian description
Particle Tracking Velocimetry
Turbulence

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Nuclear Energy and Engineering
Aerospace Engineering
Mechanical Engineering
Fluid Flow and Transfer Processes

Access to Document

10.1016/j.expthermflusci.2016.05.003

Cite this

@article{825b2e0a66494564ac91d971cf415716,

title = "On the Lagrangian features of circular and semicircular jets via 3D Particle Tracking Velocimetry",

abstract = "Three-dimensional Particle Tracking Velocimetry was employed to characterize jets from circular and semi-circular pipes in the intermediate and far fields. Grid-interpolated velocity were used to validate the measurements, and confirmed the negligible effect of the pipe shape on the mean flow in the intermediate field. Several volumetric regions were defined to get Lagrangian statistical description of the flow from categorized particle trajectories. Probability density functions of the velocity fluctuations, particle acceleration, and curvature of the trajectories revealed common and distinctive features of the jets. The first one showed departure from the Gaussian distribution away from the core, and the acceleration exhibited heavy tails in the two jets; however the curvature pdf revealed distinctive footprint of the pipe shape.",

keywords = "Acceleration, Curvature, Jets, Lagrangian description, Particle Tracking Velocimetry, Turbulence",

author = "Kim, {J. T.} and Z. Zhang and A. Liberzon and Y. Zhang and Chamorro, {L. P.}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Inc.",

year = "2016",

month = oct,

day = "1",

doi = "10.1016/j.expthermflusci.2016.05.003",

language = "الإنجليزيّة",

volume = "77",

pages = "306--316",

journal = "Experimental Thermal and Fluid Science",

issn = "0894-1777",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - On the Lagrangian features of circular and semicircular jets via 3D Particle Tracking Velocimetry

AU - Kim, J. T.

AU - Zhang, Z.

AU - Liberzon, A.

AU - Zhang, Y.

AU - Chamorro, L. P.

PY - 2016/10/1

Y1 - 2016/10/1

N2 - Three-dimensional Particle Tracking Velocimetry was employed to characterize jets from circular and semi-circular pipes in the intermediate and far fields. Grid-interpolated velocity were used to validate the measurements, and confirmed the negligible effect of the pipe shape on the mean flow in the intermediate field. Several volumetric regions were defined to get Lagrangian statistical description of the flow from categorized particle trajectories. Probability density functions of the velocity fluctuations, particle acceleration, and curvature of the trajectories revealed common and distinctive features of the jets. The first one showed departure from the Gaussian distribution away from the core, and the acceleration exhibited heavy tails in the two jets; however the curvature pdf revealed distinctive footprint of the pipe shape.

AB - Three-dimensional Particle Tracking Velocimetry was employed to characterize jets from circular and semi-circular pipes in the intermediate and far fields. Grid-interpolated velocity were used to validate the measurements, and confirmed the negligible effect of the pipe shape on the mean flow in the intermediate field. Several volumetric regions were defined to get Lagrangian statistical description of the flow from categorized particle trajectories. Probability density functions of the velocity fluctuations, particle acceleration, and curvature of the trajectories revealed common and distinctive features of the jets. The first one showed departure from the Gaussian distribution away from the core, and the acceleration exhibited heavy tails in the two jets; however the curvature pdf revealed distinctive footprint of the pipe shape.

KW - Acceleration

KW - Curvature

KW - Jets

KW - Lagrangian description

KW - Particle Tracking Velocimetry

KW - Turbulence

UR - http://www.scopus.com/inward/record.url?scp=84969136160&partnerID=8YFLogxK

U2 - 10.1016/j.expthermflusci.2016.05.003

DO - 10.1016/j.expthermflusci.2016.05.003

M3 - مقالة

SN - 0894-1777

VL - 77

SP - 306

EP - 316

JO - Experimental Thermal and Fluid Science

JF - Experimental Thermal and Fluid Science

ER -

On the Lagrangian features of circular and semicircular jets via 3D Particle Tracking Velocimetry

Abstract

Keywords

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this