Please use this identifier to cite or link to this item: https://doi.org/10.1080/1061856021000043887
Title: Numerical study of fluid transient in pipes with air entrainment
Authors: Lee, T.S. 
Low, H.T. 
Huang, W.D.
Keywords: Air entrainment
Nearly-implicit
Pressure transient
Two-phase flow
Issue Date: Jul-2004
Source: Lee, T.S.,Low, H.T.,Huang, W.D. (2004-07). Numerical study of fluid transient in pipes with air entrainment. International Journal of Computational Fluid Dynamics 18 (5) : 381-391. ScholarBank@NUS Repository. https://doi.org/10.1080/1061856021000043887
Abstract: The four-equation two-fluid model of two-component flow has been developed to study the effects of air entrainment and air release on the pressure transient due to the rapid valve closure. A nearly-implicit hydrodynamic numerical scheme is applied. Numerical experiments show that entrained, entrapped and released gases decrease the pressure wave frequency, produce asymmetric pressure surges with respect to the static pressure and result in the difference between up-surge duration and down-surge duration. These results are consistent with the experimental and field data observed by other investigators. A decrease in pressure peaks is also discovered in the given conditions.
Source Title: International Journal of Computational Fluid Dynamics
URI: http://scholarbank.nus.edu.sg/handle/10635/60963
ISSN: 10618562
DOI: 10.1080/1061856021000043887
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