Entrainment reduction and additional dissipation in dilute polymer solutions

Markus Holzner; Beat Lüthi; Alexander Liberzon; Michele Guala; Wolfgang Kinzelbach

doi:10.1007/978-3-642-02225-8_50

Entrainment reduction and additional dissipation in dilute polymer solutions

Markus Holzner, Beat Lüthi, Alexander Liberzon, Michele Guala, Wolfgang Kinzelbach

School of Mechanical Engineering

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

Abstract

We present a comparative experimental study of a turbulent flow developing in clear water and dilute polymer solutions (25 and 50 wppm polyethylene oxide). The flow is forced by a planar grid that oscillates vertically in a square container of initially still fluid. The two-component velocity fields are measured in a vertical plane passing through the center of the tank by using time resolved Particle Image Velocimetry (PIV). We obtain a lower entrainment rate for polymer solutions as compared to clear water. Extending arguments based on similarity and fractal theory to the case of dilute polymer solutions, we derive a relation between the entrainment rate and the fraction of input energy dissipated by the polymers.

Original language	English
Title of host publication	Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008
Editors	Martin Oberlack, Joachim Peinke, Alessandro Talamelli
Publisher	Springer Science and Business Media, LLC
Pages	207-210
Number of pages	4
ISBN (Print)	9783642022241
DOIs	https://doi.org/10.1007/978-3-642-02225-8_50
State	Published - 2010
Event	3rd Conference on Turbulence, iTi 2008 - Bertinoro, Italy Duration: 1 Jan 2008 → 1 Jan 2008

Publication series

Name	Springer Proceedings in Physics
Volume	131
ISSN (Print)	0930-8989
ISSN (Electronic)	1867-4941

Conference

Conference	3rd Conference on Turbulence, iTi 2008
Country/Territory	Italy
City	Bertinoro
Period	1/01/08 → 1/01/08

Access to Document

10.1007/978-3-642-02225-8_50

Cite this

Holzner, M., Lüthi, B., Liberzon, A., Guala, M., & Kinzelbach, W. (2010). Entrainment reduction and additional dissipation in dilute polymer solutions. In M. Oberlack, J. Peinke, & A. Talamelli (Eds.), Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008 (pp. 207-210). (Springer Proceedings in Physics; Vol. 131). Springer Science and Business Media, LLC. https://doi.org/10.1007/978-3-642-02225-8_50

Holzner, Markus ; Lüthi, Beat ; Liberzon, Alexander et al. / Entrainment reduction and additional dissipation in dilute polymer solutions. Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008. editor / Martin Oberlack ; Joachim Peinke ; Alessandro Talamelli. Springer Science and Business Media, LLC, 2010. pp. 207-210 (Springer Proceedings in Physics).

@inproceedings{5329714051854c14b09a041c699d05dd,

title = "Entrainment reduction and additional dissipation in dilute polymer solutions",

abstract = "We present a comparative experimental study of a turbulent flow developing in clear water and dilute polymer solutions (25 and 50 wppm polyethylene oxide). The flow is forced by a planar grid that oscillates vertically in a square container of initially still fluid. The two-component velocity fields are measured in a vertical plane passing through the center of the tank by using time resolved Particle Image Velocimetry (PIV). We obtain a lower entrainment rate for polymer solutions as compared to clear water. Extending arguments based on similarity and fractal theory to the case of dilute polymer solutions, we derive a relation between the entrainment rate and the fraction of input energy dissipated by the polymers.",

author = "Markus Holzner and Beat L{\"u}thi and Alexander Liberzon and Michele Guala and Wolfgang Kinzelbach",

note = "Publisher Copyright: {\textcopyright} 2010, Springer Science and Business Media, LLC. All rights reserved.; 3rd Conference on Turbulence, iTi 2008 ; Conference date: 01-01-2008 Through 01-01-2008",

year = "2010",

doi = "10.1007/978-3-642-02225-8_50",

language = "אנגלית",

isbn = "9783642022241",

series = "Springer Proceedings in Physics",

publisher = "Springer Science and Business Media, LLC",

pages = "207--210",

editor = "Martin Oberlack and Joachim Peinke and Alessandro Talamelli",

booktitle = "Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008",

}

Holzner, M, Lüthi, B, Liberzon, A, Guala, M & Kinzelbach, W 2010, Entrainment reduction and additional dissipation in dilute polymer solutions. in M Oberlack, J Peinke & A Talamelli (eds), Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008. Springer Proceedings in Physics, vol. 131, Springer Science and Business Media, LLC, pp. 207-210, 3rd Conference on Turbulence, iTi 2008, Bertinoro, Italy, 1/01/08. https://doi.org/10.1007/978-3-642-02225-8_50

Entrainment reduction and additional dissipation in dilute polymer solutions. / Holzner, Markus; Lüthi, Beat; Liberzon, Alexander et al.
Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008. ed. / Martin Oberlack; Joachim Peinke; Alessandro Talamelli. Springer Science and Business Media, LLC, 2010. p. 207-210 (Springer Proceedings in Physics; Vol. 131).

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

TY - GEN

T1 - Entrainment reduction and additional dissipation in dilute polymer solutions

AU - Holzner, Markus

AU - Lüthi, Beat

AU - Liberzon, Alexander

AU - Guala, Michele

AU - Kinzelbach, Wolfgang

PY - 2010

Y1 - 2010

N2 - We present a comparative experimental study of a turbulent flow developing in clear water and dilute polymer solutions (25 and 50 wppm polyethylene oxide). The flow is forced by a planar grid that oscillates vertically in a square container of initially still fluid. The two-component velocity fields are measured in a vertical plane passing through the center of the tank by using time resolved Particle Image Velocimetry (PIV). We obtain a lower entrainment rate for polymer solutions as compared to clear water. Extending arguments based on similarity and fractal theory to the case of dilute polymer solutions, we derive a relation between the entrainment rate and the fraction of input energy dissipated by the polymers.

AB - We present a comparative experimental study of a turbulent flow developing in clear water and dilute polymer solutions (25 and 50 wppm polyethylene oxide). The flow is forced by a planar grid that oscillates vertically in a square container of initially still fluid. The two-component velocity fields are measured in a vertical plane passing through the center of the tank by using time resolved Particle Image Velocimetry (PIV). We obtain a lower entrainment rate for polymer solutions as compared to clear water. Extending arguments based on similarity and fractal theory to the case of dilute polymer solutions, we derive a relation between the entrainment rate and the fraction of input energy dissipated by the polymers.

UR - http://www.scopus.com/inward/record.url?scp=85034632441&partnerID=8YFLogxK

U2 - 10.1007/978-3-642-02225-8_50

DO - 10.1007/978-3-642-02225-8_50

M3 - ???researchoutput.researchoutputtypes.contributiontobookanthology.conference???

AN - SCOPUS:85034632441

SN - 9783642022241

T3 - Springer Proceedings in Physics

SP - 207

EP - 210

BT - Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008

A2 - Oberlack, Martin

A2 - Peinke, Joachim

A2 - Talamelli, Alessandro

PB - Springer Science and Business Media, LLC

T2 - 3rd Conference on Turbulence, iTi 2008

Y2 - 1 January 2008 through 1 January 2008

ER -

Holzner M, Lüthi B, Liberzon A, Guala M, Kinzelbach W. Entrainment reduction and additional dissipation in dilute polymer solutions. In Oberlack M, Peinke J, Talamelli A, editors, Progress in Turbulence III - Proceedings of the iTi Conference in Turbulence 2008. Springer Science and Business Media, LLC. 2010. p. 207-210. (Springer Proceedings in Physics). doi: 10.1007/978-3-642-02225-8_50

Entrainment reduction and additional dissipation in dilute polymer solutions

Abstract

Publication series

Conference

Access to Document

Other files and links

Fingerprint

Cite this