Experimental and Numerical Analysis of Transient Liquid Slug Motion in a Voided Line-Reference-Cited by-同舟云学术

Experimental and Numerical Analysis of Transient Liquid Slug Motion in a Voided Line

Published:2004-05-01 Issue:2 Volume:126 Page:241-249
ISSN:0094-9930
Container-title:Journal of Pressure Vessel Technology
language:en
Short-container-title:

Author:

Bozkus Zafer¹,Baran O¨zgu¨r Ugˇras¸¹,Ger Metin¹

Affiliation:

1. Hydromechanics Lab., Civil Eng. Dept., Middle East Technical University, 06531 Ankara, Turkey

Abstract

In this paper, the hydrodynamics of a single transient slug in a voided line was investigated numerically and experimentally. In the experiments, the liquid slugs of various lengths were propelled into an inclined smooth steel pipe under several different driving air pressures. The pipe segment terminates in an open ended elbow; the pressure time histories are recorded at this elbow. The recorded peak pressures are correlated to the tank pressures and pipe and slug geometry. Dimensionless parameters are developed to present the experimental data. Moreover, the flow is investigated numerically using several Godunov type schemes, namely, basic Godunov Scheme, Total Variation Diminishing (TVD), based Weighted Average Flux (WAF) method and two different Monotone Upstream Schemes for Conservation Laws (MUSCL) methods. These schemes employ Godunov’s approach facilitating exact and Harten, Lax and van Leer’s modified approximate solver (HLLC) type solution methods solving the Riemann problem of gas dynamics equations. Furthermore, the recorded peak pressures at the elbow are compared with the results of the numerical analysis and results of two earlier studies.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality

Link

http://asmedigitalcollection.asme.org/pressurevesseltech/article-pdf/126/2/241/5599669/241_1.pdf

Reference14 articles.

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2. Fenton, R. M., and Griffith, P., 1990, “The Force at a Pipe Bend Due to the Clearing Of Water Trapped Upstream,” Transient Thermal Hydraulics and Resulting Loads on Vessel and Piping Systems, PVP, ASME, New York, 190, pp. 59–67.

3. Bozkus, Z., 1991, “The Hydrodynamics of an Individual Transient Slug in a Voided Line,” Ph.D. dissertation, Department of Civil and Environmental Engineering, Michigan State University, East Lansing, MI, USA.

4. Bozkus, Z., and Wiggert, D. C., 1991, “Slug Motion and Impact in a Voided Line,” Fluid Transients and Fluid Structure Interaction, D.C. Wiggert and F. J. Moody eds., Vol. 224/FED-Vol. 126, ASME, New York, pp. 25–27.

5. Bozkus, Z., and Wiggert, D. C., 1992, “Hydromechanics of Slug Motion in a Voided Line,” Unsteady Flow and Fluid Transients, R. Bettess and J. Watts, eds., A. A. Balkema, Rotterdam, pp. 77–86.

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