Experimental and Numerical Multiphase-Front Fluid Hammer

The aim of this work is to study the fluid hammer and related multiphase phenomena taking place in a confined environment, where pressurized liquid faces vacuum conditions after opening an isolation valve. This paper describes the experimental facility built for this purpose, the tests performed, an...

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Published in:Journal of propulsion and power 2014-03, Vol.30 (2), p.368-376
Main Authors: Porca, P, Lema, M, Rambaud, P, Steelant, J
Format: Article
Language:English
Subjects:
Computational fluid dynamics
Conferences
Confined spaces
Conservation equations
Fluid flow
Fluids
Hammers
Liquids
Multiphase
Propulsion
Water hammer
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description The aim of this work is to study the fluid hammer and related multiphase phenomena taking place in a confined environment, where pressurized liquid faces vacuum conditions after opening an isolation valve. This paper describes the experimental facility built for this purpose, the tests performed, and shows the comparison with the numerical results obtained with a transient one-dimensional software based upon conservation equations. Because the multiphase phenomena taking place in the liquid front moving along the pipe are complex and difficult to interpret, a graphical tool by means of X-t diagrams was adapted by the authors to characterize the physical phenomena involved. Contrary to the classical water hammer analysis published in the literature so far, the X-t diagrams allow a simultaneous study in time and space for each of the magnitudes involved in the evolution of the fluid hammer.
doi_str_mv 10.2514/1.B34832
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subjects Computational fluid dynamics
Conferences
Confined spaces
Conservation equations
Fluid flow
Fluids
Hammers
Liquids
Multiphase
Propulsion
Water hammer
title Experimental and Numerical Multiphase-Front Fluid Hammer
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