Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump
This work deals with the experimental and numerical investigation of cavitating and noncavitating flow inside a mixed-flow pump and its influence on performance curves of this pump. The experimental research has been carried out in the closed horizontal loop with the main tank capacity of 35 m3. The...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2014-03-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20146702104 |
| _version_ | 1818888539019935744 |
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| author | Sedlář Milan Komárek Martin Vyroubal Michal Doubrava Vít Varchola Michal Hlbočan Peter |
| author_facet | Sedlář Milan Komárek Martin Vyroubal Michal Doubrava Vít Varchola Michal Hlbočan Peter |
| author_sort | Sedlář Milan |
| collection | DOAJ |
| description | This work deals with the experimental and numerical investigation of cavitating and noncavitating flow inside a mixed-flow pump and its influence on performance curves of this pump. The experimental research has been carried out in the closed horizontal loop with the main tank capacity of 35 m3. The loop is equipped with both the compressor and the vacuum pump capable of creating different pressure levels while maintaining constant volume flow rate. Pump investigated in this project has been equipped with transparent windows, which enabled the visualization of flow and cavitation phenomena for a wide range of flow conditions. A comprehensive CFD analysis of tested pump has been done both in the cavitating and noncavitating regimes. The ANSYS CFX commercial CFD package has been used to solve URANS equations together with the Rayleigh-Plesset model and the SST-SAS turbulence model. Both the experimental research and the CFD analysis have provided a good illustration of the flow structures inside the pump and their dynamics for a wide range of flow rates and NPSH values. Flow and cavitation instabilities have been detected at suboptimal flow rates which correspond to increased values of noise and vibrations. The calculated results agree well with the measurements. |
| first_indexed | 2024-12-19T16:54:44Z |
| format | Article |
| id | doaj.art-4aded2a3c2af495aa51b7941ac747aef |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T16:54:44Z |
| publishDate | 2014-03-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-4aded2a3c2af495aa51b7941ac747aef2022-12-21T20:13:26ZengEDP SciencesEPJ Web of Conferences2100-014X2014-03-01670210410.1051/epjconf/20146702104epjconf_efm-13_02104Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pumpSedlář Milan0Komárek Martin1Vyroubal Michal2Doubrava Vít3Varchola Michal4Hlbočan Peter5Centre of Hydraulic ResearchCentre of Hydraulic ResearchCentre of Hydraulic ResearchSIGMA Research and Development InstituteSlovak University of Technology in Bratislava, Faculty of Mechanical EngineeringSlovak University of Technology in Bratislava, Faculty of Mechanical EngineeringThis work deals with the experimental and numerical investigation of cavitating and noncavitating flow inside a mixed-flow pump and its influence on performance curves of this pump. The experimental research has been carried out in the closed horizontal loop with the main tank capacity of 35 m3. The loop is equipped with both the compressor and the vacuum pump capable of creating different pressure levels while maintaining constant volume flow rate. Pump investigated in this project has been equipped with transparent windows, which enabled the visualization of flow and cavitation phenomena for a wide range of flow conditions. A comprehensive CFD analysis of tested pump has been done both in the cavitating and noncavitating regimes. The ANSYS CFX commercial CFD package has been used to solve URANS equations together with the Rayleigh-Plesset model and the SST-SAS turbulence model. Both the experimental research and the CFD analysis have provided a good illustration of the flow structures inside the pump and their dynamics for a wide range of flow rates and NPSH values. Flow and cavitation instabilities have been detected at suboptimal flow rates which correspond to increased values of noise and vibrations. The calculated results agree well with the measurements.http://dx.doi.org/10.1051/epjconf/20146702104 |
| spellingShingle | Sedlář Milan Komárek Martin Vyroubal Michal Doubrava Vít Varchola Michal Hlbočan Peter Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump EPJ Web of Conferences |
| title | Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump |
| title_full | Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump |
| title_fullStr | Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump |
| title_full_unstemmed | Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump |
| title_short | Experimental and numerical analysis of unsteady behaviour of high efficiency mixed-flow pump |
| title_sort | experimental and numerical analysis of unsteady behaviour of high efficiency mixed flow pump |
| url | http://dx.doi.org/10.1051/epjconf/20146702104 |
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