Application of multiphase modelling for vortex occurrence in vertical pump intake - A review

M. L. Samsudin, K. M. Munisamy, Savithry K. Thangaraju

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

Vortex formation within pump intake is one of common problems faced for power plant cooling water system. This phenomenon, categorised as surface and sub-surface vortices, can lead to several operational problems and increased maintenance costs. Physical model study was recommended from published guidelines but proved to be time and resource consuming. Hence, the use of Computational Fluid Dynamics (CFD) is an attractive alternative in managing the problem. At the early stage, flow analysis was conducted using single phase simulation and found to find good agreement with the observation from physical model study. With the development of computers, multiphase simulation found further enhancement in obtaining accurate results for representing air entrainment and sub-surface vortices which were earlier not well predicted from the single phase simulation. The purpose of this paper is to describe the application of multiphase modelling with CFD analysis for investigating vortex formation for a vertically inverted pump intake. In applying multiphase modelling, there ought to be a balance between the acceptable usage for computational time and resources and the degree of accuracy and realism in the results as expected from the analysis.

Original languageEnglish
Article number012024
JournalIOP Conference Series: Materials Science and Engineering
Volume88
Issue number1
DOIs
Publication statusPublished - 21 Sep 2015
Event7th International Conference on Cooling and Heating Technologies, ICCHT 2014 - Subang Jaya, Selangor Darul Ehsan, Malaysia
Duration: 04 Nov 201406 Nov 2014

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Vortex flow
Pumps
Computational fluid dynamics
Water cooling systems
Air entrainment
Dynamic analysis
Power plants
Costs

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

Cite this

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title = "Application of multiphase modelling for vortex occurrence in vertical pump intake - A review",
abstract = "Vortex formation within pump intake is one of common problems faced for power plant cooling water system. This phenomenon, categorised as surface and sub-surface vortices, can lead to several operational problems and increased maintenance costs. Physical model study was recommended from published guidelines but proved to be time and resource consuming. Hence, the use of Computational Fluid Dynamics (CFD) is an attractive alternative in managing the problem. At the early stage, flow analysis was conducted using single phase simulation and found to find good agreement with the observation from physical model study. With the development of computers, multiphase simulation found further enhancement in obtaining accurate results for representing air entrainment and sub-surface vortices which were earlier not well predicted from the single phase simulation. The purpose of this paper is to describe the application of multiphase modelling with CFD analysis for investigating vortex formation for a vertically inverted pump intake. In applying multiphase modelling, there ought to be a balance between the acceptable usage for computational time and resources and the degree of accuracy and realism in the results as expected from the analysis.",
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Application of multiphase modelling for vortex occurrence in vertical pump intake - A review. / Samsudin, M. L.; Munisamy, K. M.; K. Thangaraju, Savithry.

In: IOP Conference Series: Materials Science and Engineering, Vol. 88, No. 1, 012024, 21.09.2015.

Research output: Contribution to journalConference article

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AB - Vortex formation within pump intake is one of common problems faced for power plant cooling water system. This phenomenon, categorised as surface and sub-surface vortices, can lead to several operational problems and increased maintenance costs. Physical model study was recommended from published guidelines but proved to be time and resource consuming. Hence, the use of Computational Fluid Dynamics (CFD) is an attractive alternative in managing the problem. At the early stage, flow analysis was conducted using single phase simulation and found to find good agreement with the observation from physical model study. With the development of computers, multiphase simulation found further enhancement in obtaining accurate results for representing air entrainment and sub-surface vortices which were earlier not well predicted from the single phase simulation. The purpose of this paper is to describe the application of multiphase modelling with CFD analysis for investigating vortex formation for a vertically inverted pump intake. In applying multiphase modelling, there ought to be a balance between the acceptable usage for computational time and resources and the degree of accuracy and realism in the results as expected from the analysis.

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