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Home»Articles»The Effect of the Pipe Bending Angle on the Pressure Losses Vane Elbow Pipes

JournalCover

The Asian Review of Civil Engineering (TARCE)

Editor Prof. Francesco Colangelo
Print ISSN : 2249 - 6203
Frequency : Half-Yearly

The Effect of the Pipe Bending Angle on the Pressure Losses Vane Elbow Pipes

Author : SamanShabani, Amir Abass Abedini and Ali Mohammadtabar
Volume 8 No.1 January-June 2019 pp 1-8

Abstract

Pressure loss is one of the significant parameters in designing pipe bends. In this paper, the pressure distribution and pressure losses induced by turbulent flows in a circular cross-sectioned piping elbow with or without guide vane were simulated. The flow distribution in the piping elbow was simulated by the k-  model using control volume method. The main objective of this study is to characterize the effect of changing the angle of pipe bend and Reynolds number on the flow separation of single-phase turbulent flow through numerical simulation. Results were validated by other experimental results and then loss coefficient was calculated in different angles from 45 to 135-degree pipe bend in various radius ratios with or without guide vane. Despite the fact that increasing pipe angle increased the pipe bend loss coefficient, using guide vane in the pipe elbow decreased this coefficient. In the radius ratio 1.5 with one guide vane, the loss coefficient of the pipe bends decreased by 50 percent in all degrees. Results revealed that the use of two vanes in pipe bend is more effective on the reduction of elbow pressure losses. Moreover, two guide vanes can decrease loss coefficient more than 50 percent. Also, the results indicated that loss coefficient decreased by increasing Reynolds number.

Keywords

Turbulence Flow, Drop Pressure, Pipe Bend, Guide Vane

Full Text:

References

[1] T.K.Bandyopadhyay, and S.K. Das, “Non-Newtonian and Gas-non-Newtonian Liquid Flow through Elbows-CFD Analysis”, Journal of Applied Fluid Mechanics, Vol. 6, No. 1, pp. 131–14, 2013.
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[7] J.T.Haskew, and M. a. R.Sharif, “Performance evaluation of vaned pipe bends in turbulent flow of liquid propellants” Applied Mathematical Modelling, Vol. 21, No. 1, pp. 48–62, 1997 DOI: 10.1016/S0307-904X(96)00121-7.
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The Asian Review of Civil Engineering (TARCE) is a half-yearly international peer-reviewed journal of Civil Engineering. One of the objectives of this journal is to disseminate knowledge on various research issues connected with the topics include, but are not limited to:

Coastal engineering
Construction engineering
Earthquake engineering
Environmental engineering
Geotechnical engineering
Water resources engineering
Materials engineering
Structural engineering
Surveying
Transportation engineering
Municipal or urban engineering

Pressure loss is one of the significant parameters in designing pipe bends. In this paper, the pressure distribution and pressure losses induced by turbulent flows in a circular cross-sectioned piping elbow with or without guide vane were simulated. The flow distribution in the piping elbow was simulated by the k-  model using control volume method. The main objective of this study is to characterize the effect of changing the angle of pipe bend and Reynolds number on the flow separation of single-phase turbulent flow through numerical simulation. Results were validated by other experimental results and then loss coefficient was calculated in different angles from 45 to 135-degree pipe bend in various radius ratios with or without guide vane. Despite the fact that increasing pipe angle increased the pipe bend loss coefficient, using guide vane in the pipe elbow decreased this coefficient. In the radius ratio 1.5 with one guide vane, the loss coefficient of the pipe bends decreased by 50 percent in all degrees. Results revealed that the use of two vanes in pipe bend is more effective on the reduction of elbow pressure losses. Moreover, two guide vanes can decrease loss coefficient more than 50 percent. Also, the results indicated that loss coefficient decreased by increasing Reynolds number.

Editor-in-Chief
Prof. Francesco Colangelo
Department of Engineering, Universita degli Studi di Napoli Parthenope, Italy
[email protected]parthenope.it
Editorial Advisory Board
Dr. Suhana Binti Koting
Department of Civil Engineering, University of Malaya, Malaysia
[email protected]
Dr. Abdul Rahman Mohd. Sam
Department of Structure and Materials, Universiti Teknologi Malaysia
[email protected]
Prof. Sr Mokhtar Azizi Bin Mohd Din
Department of Civil Engineering, University of Malaya, Malaysia
[email protected]
Prof. N. Anuja
Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, India
[email protected]
Dr. Ramadhansyah Putra Jaya
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Johan Bin Sohaili
Department of Civil Engineering , Universiti Teknologi Malaysia
[email protected]
Dr. Norhisham Bin Bakhary
Department of Structure and Materials, Universiti Teknologi Malaysia
[email protected]
Dr. Sitti Asmah Hassan
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Libriati Binti Zardasti
Department of Structures and Materials, Universiti Teknologi Malaysia
[email protected]
Dr. Nor Zurairahetty Mohd Yunus
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Zaiton Haron
Department of Structure and Materials, Universiti Teknologi Malaysia
[email protected]
Dr. Rini Asnida Abdullah
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Mohd Razman bin Salim
Department of Environmental Engineering, Universiti Teknologi Malaysia
[email protected]
Dr. Norhidayah Abdul Hassan
Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
[email protected]
Dr. Yuen Choon Wah
Department of Civil Engineering, University of Malaya, Malaysia
[email protected]

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    Editorial Note

    Editorial Prof. Francesco Colangelo

    Editor-in-Chief
    Prof. Francesco Colangelo
    Department of Engineering, Universita degli Studi di Napoli Parthenope, Italy
    [email protected]
    Editorial Advisory Board
    Dr. Suhana Binti Koting
    Department of Civil Engineering, University of Malaya, Malaysia
    [email protected]
    Dr. Abdul Rahman Mohd. Sam
    Department of Structure and Materials, Universiti Teknologi Malaysia
    [email protected]
    Prof. Sr Mokhtar Azizi Bin Mohd Din
    Department of Civil Engineering, University of Malaya, Malaysia
    [email protected]
    Prof. N. Anuja
    Department of Civil Engineering, Mepco Schlenk Engineering College, Sivakasi, India
    [email protected]
    Dr. Ramadhansyah Putra Jaya
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Johan Bin Sohaili
    Department of Civil Engineering , Universiti Teknologi Malaysia
    [email protected]
    Dr. Norhisham Bin Bakhary
    Department of Structure and Materials, Universiti Teknologi Malaysia
    [email protected]
    Dr. Sitti Asmah Hassan
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Libriati Binti Zardasti
    Department of Structures and Materials, Universiti Teknologi Malaysia
    [email protected]
    Dr. Nor Zurairahetty Mohd Yunus
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Zaiton Haron
    Department of Structure and Materials, Universiti Teknologi Malaysia
    [email protected]
    Dr. Rini Asnida Abdullah
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Mohd Razman bin Salim
    Department of Environmental Engineering, Universiti Teknologi Malaysia
    [email protected]
    Dr. Norhidayah Abdul Hassan
    Department of Geotechnics and Transportation, Universiti Teknologi Malaysia
    [email protected]
    Dr. Yuen Choon Wah
    Department of Civil Engineering, University of Malaya, Malaysia
    [email protected]

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