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research-article

Modelling liquid slugs accelerating in inclined conduits

[+] Author and Article Information
Stan P. Korzilius

Centre for Analysis, Scientific computing and Applications, Department of Mathematics and Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands
s.p.korzilius@tue.nl

Arris S. Tijsseling

Centre for Analysis, Scientific computing and Applications, Department of Mathematics and Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands
a.s.tijsseling@tue.nl

Zafer Bozkus

Hydromechanics Laboratory, Department of Civil Engineering, Middle East Technical University, Ankara 06800, Turkey
bozkus@metu.edu.tr

Martijn J.H. Anthonissen

Centre for Analysis, Scientific computing and Applications, Department of Mathematics and Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands
m.j.h.anthonissen@tue.nl

Wil H.A. Schilders

Centre for Analysis, Scientific computing and Applications, Department of Mathematics and Computer Science, Eindhoven University of Technology, Eindhoven, The Netherlands
w.h.a.schilders@tue.nl

1Corresponding author.

ASME doi:10.1115/1.4037716 History: Received March 09, 2017; Revised August 09, 2017

Abstract

In this article we simulate travelling liquid slugs in conduits, as they may occur in systems carrying high-pressure steam. We consider both horizontal and inclined pipes in which the slug is accelerated by a suddenly applied pressure gradient, while at the same time gravity and friction work in the opposite direction. This causes a steep slug front and an extended slug tail. The shapes of front and tail are of interest since they determine the forces exerted on bends and other obstacles in the piping system. The study also aims at improving existing one-dimensional models. A hybrid model is proposed to speed up the two-dimensional computations.

Copyright (c) 2017 by ASME
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