Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD

Richard B. Medvitz; Robert Francis Kunz; David A. Boger; Jules Washington V. Lindau; Adam M. Yocum; Laura Pauley

Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD

Richard B. Medvitz, Robert Francis Kunz, David A. Boger, Jules Washington V. Lindau, Adam M. Yocum, Laura Pauley

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A multi-phase CFD method is used to analyze centrifugal pump performance under developed cavitating conditions. The differential model employed is the homogeneous two-phase Reynolds-Averaged-Navier-Stokes equations, wherein mixture momentum and volume continuity equations are solved along with vapor volume fraction continuity. Mass transfer modeling is provided for the phase change associated with sheet cavitation. Quasi-three-dimensional (Q3D) and fully-three-dimensional analyses are performed for two impeller configurations. Using Q3D analysis, steady and time-dependent analyses were performed across a wide range of flow coefficients and cavitation numbers. Characteristic performance trends associated with off-design flow and blade cavitation are observed. The rapid drop in head coefficient at low cavitation numbers (breakdown) is captured for all flow coefficients. Local flow field solution plots elucidate the principal physical mechanisms associated with the onset of breakdown. Results are also presented which illustrate the full three dimensional capability of the method.

Original language	English (US)
Title of host publication	Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 1
Subtitle of host publication	Forums
Editors	T.J. O Hern, T.J. O Hern
Pages	445-453
Number of pages	9
State	Published - 2003
Event	2001 ASME Fluids Engineering Division Summer Meeting - New Orleans, LA, United States Duration: May 29 2001 → Jun 1 2001

Publication series

Name	Proceedings of the ASME Fluids Engineering Division Summer Meeting
Volume	1

Other

Other	2001 ASME Fluids Engineering Division Summer Meeting
Country/Territory	United States
City	New Orleans, LA
Period	5/29/01 → 6/1/01

All Science Journal Classification (ASJC) codes

Mechanical Engineering
Fluid Flow and Transfer Processes

Cite this

Medvitz, R. B., Kunz, R. F., Boger, D. A., Lindau, J. W. V., Yocum, A. M., & Pauley, L. (2003). Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD. In T. J. O Hern, & T. J. O Hern (Eds.), Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 1: Forums (pp. 445-453). (Proceedings of the ASME Fluids Engineering Division Summer Meeting; Vol. 1).

@inproceedings{4ac92487893d488586b1e57d32ad4651,

title = "Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD",

abstract = "A multi-phase CFD method is used to analyze centrifugal pump performance under developed cavitating conditions. The differential model employed is the homogeneous two-phase Reynolds-Averaged-Navier-Stokes equations, wherein mixture momentum and volume continuity equations are solved along with vapor volume fraction continuity. Mass transfer modeling is provided for the phase change associated with sheet cavitation. Quasi-three-dimensional (Q3D) and fully-three-dimensional analyses are performed for two impeller configurations. Using Q3D analysis, steady and time-dependent analyses were performed across a wide range of flow coefficients and cavitation numbers. Characteristic performance trends associated with off-design flow and blade cavitation are observed. The rapid drop in head coefficient at low cavitation numbers (breakdown) is captured for all flow coefficients. Local flow field solution plots elucidate the principal physical mechanisms associated with the onset of breakdown. Results are also presented which illustrate the full three dimensional capability of the method.",

author = "Medvitz, {Richard B.} and Kunz, {Robert Francis} and Boger, {David A.} and Lindau, {Jules Washington V.} and Yocum, {Adam M.} and Laura Pauley",

year = "2003",

language = "English (US)",

isbn = "0791835324",

series = "Proceedings of the ASME Fluids Engineering Division Summer Meeting",

pages = "445--453",

editor = "{O Hern}, T.J. and {O Hern}, T.J.",

booktitle = "Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 1",

note = "2001 ASME Fluids Engineering Division Summer Meeting ; Conference date: 29-05-2001 Through 01-06-2001",

}

Medvitz, RB, Kunz, RF, Boger, DA, Lindau, JWV, Yocum, AM & Pauley, L 2003, Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD. in TJ O Hern & TJ O Hern (eds), Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 1: Forums. Proceedings of the ASME Fluids Engineering Division Summer Meeting, vol. 1, pp. 445-453, 2001 ASME Fluids Engineering Division Summer Meeting, New Orleans, LA, United States, 5/29/01.

Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD. / Medvitz, Richard B.; Kunz, Robert Francis; Boger, David A. et al.
Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 1: Forums. ed. / T.J. O Hern; T.J. O Hern. 2003. p. 445-453 (Proceedings of the ASME Fluids Engineering Division Summer Meeting; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD

AU - Medvitz, Richard B.

AU - Kunz, Robert Francis

AU - Boger, David A.

AU - Lindau, Jules Washington V.

AU - Yocum, Adam M.

AU - Pauley, Laura

PY - 2003

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N2 - A multi-phase CFD method is used to analyze centrifugal pump performance under developed cavitating conditions. The differential model employed is the homogeneous two-phase Reynolds-Averaged-Navier-Stokes equations, wherein mixture momentum and volume continuity equations are solved along with vapor volume fraction continuity. Mass transfer modeling is provided for the phase change associated with sheet cavitation. Quasi-three-dimensional (Q3D) and fully-three-dimensional analyses are performed for two impeller configurations. Using Q3D analysis, steady and time-dependent analyses were performed across a wide range of flow coefficients and cavitation numbers. Characteristic performance trends associated with off-design flow and blade cavitation are observed. The rapid drop in head coefficient at low cavitation numbers (breakdown) is captured for all flow coefficients. Local flow field solution plots elucidate the principal physical mechanisms associated with the onset of breakdown. Results are also presented which illustrate the full three dimensional capability of the method.

AB - A multi-phase CFD method is used to analyze centrifugal pump performance under developed cavitating conditions. The differential model employed is the homogeneous two-phase Reynolds-Averaged-Navier-Stokes equations, wherein mixture momentum and volume continuity equations are solved along with vapor volume fraction continuity. Mass transfer modeling is provided for the phase change associated with sheet cavitation. Quasi-three-dimensional (Q3D) and fully-three-dimensional analyses are performed for two impeller configurations. Using Q3D analysis, steady and time-dependent analyses were performed across a wide range of flow coefficients and cavitation numbers. Characteristic performance trends associated with off-design flow and blade cavitation are observed. The rapid drop in head coefficient at low cavitation numbers (breakdown) is captured for all flow coefficients. Local flow field solution plots elucidate the principal physical mechanisms associated with the onset of breakdown. Results are also presented which illustrate the full three dimensional capability of the method.

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T3 - Proceedings of the ASME Fluids Engineering Division Summer Meeting

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BT - Proceedings of the 2001 ASME Fluids Engineering Division Summer Meeting. Volume 1

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Performance analysis of cavitating flow in centrifugal pumps using multiphase CFD

Abstract

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All Science Journal Classification (ASJC) codes

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