Numerical simulation of unsteady flow in a multistage centrifugal pump using sliding mesh technique

Huang Si; A. A. Mohamad; K. Nandakumar; Z. Y. Ruan; D. K. Sang

doi:10.1504/PCFD.2010.034454

Numerical simulation of unsteady flow in a multistage centrifugal pump using sliding mesh technique

Huang Si^*, A. A. Mohamad, K. Nandakumar, Z. Y. Ruan, D. K. Sang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

In this work, three-dimensional, unsteady Reynolds-Averaged Navier-Stokes (RANS) equations with standard k-ε turbulence models are solved by employing sliding mesh technique within an entire stage of a multistage diffuser pump to investigate transient flow field and pressure fluctuations due to the interaction between impeller and diffuser vanes. Sliding mesh calculation is carried out as the impeller zones slide (i.e., rotate) relative to diffuser zone along the grid interface in discrete time steps. The complicated time-periodic and spatial-periodic characteristics as well as rotor-stator interaction phenomena inside the pump stage are simulated and analysed to understand dynamic variation of the interior flow field and interference and finally to aim at optimal design.

Original language	English
Pages (from-to)	239-245
Number of pages	7
Journal	Progress in Computational Fluid Dynamics
Volume	10
Issue number	4
DOIs	https://doi.org/10.1504/PCFD.2010.034454
State	Published - Aug 2010
Externally published	Yes

Keywords

3D flow field
Multistage centrifugal pump
Numerical simulation
Sliding mesh

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10.1504/PCFD.2010.034454

Cite this

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title = "Numerical simulation of unsteady flow in a multistage centrifugal pump using sliding mesh technique",

abstract = "In this work, three-dimensional, unsteady Reynolds-Averaged Navier-Stokes (RANS) equations with standard k-ε turbulence models are solved by employing sliding mesh technique within an entire stage of a multistage diffuser pump to investigate transient flow field and pressure fluctuations due to the interaction between impeller and diffuser vanes. Sliding mesh calculation is carried out as the impeller zones slide (i.e., rotate) relative to diffuser zone along the grid interface in discrete time steps. The complicated time-periodic and spatial-periodic characteristics as well as rotor-stator interaction phenomena inside the pump stage are simulated and analysed to understand dynamic variation of the interior flow field and interference and finally to aim at optimal design.",

keywords = "3D flow field, Multistage centrifugal pump, Numerical simulation, Sliding mesh",

author = "Huang Si and Mohamad, {A. A.} and K. Nandakumar and Ruan, {Z. Y.} and Sang, {D. K.}",

year = "2010",

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doi = "10.1504/PCFD.2010.034454",

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AU - Si, Huang

AU - Mohamad, A. A.

AU - Nandakumar, K.

AU - Ruan, Z. Y.

AU - Sang, D. K.

PY - 2010/8

Y1 - 2010/8

N2 - In this work, three-dimensional, unsteady Reynolds-Averaged Navier-Stokes (RANS) equations with standard k-ε turbulence models are solved by employing sliding mesh technique within an entire stage of a multistage diffuser pump to investigate transient flow field and pressure fluctuations due to the interaction between impeller and diffuser vanes. Sliding mesh calculation is carried out as the impeller zones slide (i.e., rotate) relative to diffuser zone along the grid interface in discrete time steps. The complicated time-periodic and spatial-periodic characteristics as well as rotor-stator interaction phenomena inside the pump stage are simulated and analysed to understand dynamic variation of the interior flow field and interference and finally to aim at optimal design.

AB - In this work, three-dimensional, unsteady Reynolds-Averaged Navier-Stokes (RANS) equations with standard k-ε turbulence models are solved by employing sliding mesh technique within an entire stage of a multistage diffuser pump to investigate transient flow field and pressure fluctuations due to the interaction between impeller and diffuser vanes. Sliding mesh calculation is carried out as the impeller zones slide (i.e., rotate) relative to diffuser zone along the grid interface in discrete time steps. The complicated time-periodic and spatial-periodic characteristics as well as rotor-stator interaction phenomena inside the pump stage are simulated and analysed to understand dynamic variation of the interior flow field and interference and finally to aim at optimal design.

KW - 3D flow field

KW - Multistage centrifugal pump

KW - Numerical simulation

KW - Sliding mesh

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DO - 10.1504/PCFD.2010.034454

M3 - 文章

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JO - Progress in Computational Fluid Dynamics

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Numerical simulation of unsteady flow in a multistage centrifugal pump using sliding mesh technique

Abstract

Keywords

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