A CFD study on design parameters acting in cavitation of positive displacement pump

Research output: Contribution to conferencePaper

Abstract

A CFD test case of a positive displacement reciprocating pump is presented to demonstrate the capability and benefits which numerical analysis may bring to designers in terms of information on fluid dynamic fields useful to optimize the geometry of the discussed device in all the different operating conditions; even in the worst operating conditions when cavitation appears. The paper discusses the role of design parameters such as the inlet valve shape, mass and spring preload in full cavitating conditions. The comprehensive CFD model makes use of the Singhal et al.(1) cavitation algorithm in conjunction with an Eulerian multiphase model. User defined functions add a few more functionalities to the CFD solver such as the valve dynamics model and the compressibility of water. For each of the cases, the work presented shows the capability of the CFD technique to predict quantitative results such as the volumetric efficiency loss and amount of water vapour generated when cavitation arises. Providing pump designers with this information before the design process has come to an end would give them the possibility to improve the operational life of the device as well as its efficiency. It would also result in a more economic and competitive device on the market.

Conference

Conference12th European Fluid Machinery Congress
CountryUnited Kingdom
CityEdinburgh
Period6/10/147/10/14

Fingerprint

Cavitation
Parameter Design
Pump
Computational fluid dynamics
Pumps
Water Vapor
Compressibility
Fluid Dynamics
Reciprocating pumps
Design Process
Numerical Analysis
Dynamic Model
Steam
Fluid dynamics
Optimise
Economics
Water vapor
Water
Numerical analysis
Predict

Keywords

  • CFD modelling
  • numerical analysis
  • fluid dynamics
  • cavitation
  • positive displacement pumps

Cite this

Iannetti, A., Stickland, M., & Dempster, W. (2014). A CFD study on design parameters acting in cavitation of positive displacement pump. Paper presented at 12th European Fluid Machinery Congress, Edinburgh, United Kingdom.
Iannetti, Aldo ; Stickland, Matthew ; Dempster, William. / A CFD study on design parameters acting in cavitation of positive displacement pump. Paper presented at 12th European Fluid Machinery Congress, Edinburgh, United Kingdom.13 p.
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abstract = "A CFD test case of a positive displacement reciprocating pump is presented to demonstrate the capability and benefits which numerical analysis may bring to designers in terms of information on fluid dynamic fields useful to optimize the geometry of the discussed device in all the different operating conditions; even in the worst operating conditions when cavitation appears. The paper discusses the role of design parameters such as the inlet valve shape, mass and spring preload in full cavitating conditions. The comprehensive CFD model makes use of the Singhal et al.(1) cavitation algorithm in conjunction with an Eulerian multiphase model. User defined functions add a few more functionalities to the CFD solver such as the valve dynamics model and the compressibility of water. For each of the cases, the work presented shows the capability of the CFD technique to predict quantitative results such as the volumetric efficiency loss and amount of water vapour generated when cavitation arises. Providing pump designers with this information before the design process has come to an end would give them the possibility to improve the operational life of the device as well as its efficiency. It would also result in a more economic and competitive device on the market.",
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author = "Aldo Iannetti and Matthew Stickland and William Dempster",
year = "2014",
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language = "English",
note = "12th European Fluid Machinery Congress ; Conference date: 06-10-2014 Through 07-10-2014",

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Iannetti, A, Stickland, M & Dempster, W 2014, 'A CFD study on design parameters acting in cavitation of positive displacement pump' Paper presented at 12th European Fluid Machinery Congress, Edinburgh, United Kingdom, 6/10/14 - 7/10/14, .

A CFD study on design parameters acting in cavitation of positive displacement pump. / Iannetti, Aldo; Stickland, Matthew; Dempster, William.

2014. Paper presented at 12th European Fluid Machinery Congress, Edinburgh, United Kingdom.

Research output: Contribution to conferencePaper

TY - CONF

T1 - A CFD study on design parameters acting in cavitation of positive displacement pump

AU - Iannetti, Aldo

AU - Stickland, Matthew

AU - Dempster, William

PY - 2014/10/6

Y1 - 2014/10/6

N2 - A CFD test case of a positive displacement reciprocating pump is presented to demonstrate the capability and benefits which numerical analysis may bring to designers in terms of information on fluid dynamic fields useful to optimize the geometry of the discussed device in all the different operating conditions; even in the worst operating conditions when cavitation appears. The paper discusses the role of design parameters such as the inlet valve shape, mass and spring preload in full cavitating conditions. The comprehensive CFD model makes use of the Singhal et al.(1) cavitation algorithm in conjunction with an Eulerian multiphase model. User defined functions add a few more functionalities to the CFD solver such as the valve dynamics model and the compressibility of water. For each of the cases, the work presented shows the capability of the CFD technique to predict quantitative results such as the volumetric efficiency loss and amount of water vapour generated when cavitation arises. Providing pump designers with this information before the design process has come to an end would give them the possibility to improve the operational life of the device as well as its efficiency. It would also result in a more economic and competitive device on the market.

AB - A CFD test case of a positive displacement reciprocating pump is presented to demonstrate the capability and benefits which numerical analysis may bring to designers in terms of information on fluid dynamic fields useful to optimize the geometry of the discussed device in all the different operating conditions; even in the worst operating conditions when cavitation appears. The paper discusses the role of design parameters such as the inlet valve shape, mass and spring preload in full cavitating conditions. The comprehensive CFD model makes use of the Singhal et al.(1) cavitation algorithm in conjunction with an Eulerian multiphase model. User defined functions add a few more functionalities to the CFD solver such as the valve dynamics model and the compressibility of water. For each of the cases, the work presented shows the capability of the CFD technique to predict quantitative results such as the volumetric efficiency loss and amount of water vapour generated when cavitation arises. Providing pump designers with this information before the design process has come to an end would give them the possibility to improve the operational life of the device as well as its efficiency. It would also result in a more economic and competitive device on the market.

KW - CFD modelling

KW - numerical analysis

KW - fluid dynamics

KW - cavitation

KW - positive displacement pumps

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M3 - Paper

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Iannetti A, Stickland M, Dempster W. A CFD study on design parameters acting in cavitation of positive displacement pump. 2014. Paper presented at 12th European Fluid Machinery Congress, Edinburgh, United Kingdom.