Flow inside impeller sidewall gaps and disk friction of radial centrifugal pump
Disk friction losses can significantly influence the overall pump effciency. It is most pronounced in the case of machines with low or moderate specific speed, which has to be kept in mind during a design process of a pump. However, analyses using computational fluid dynamics (CFD) often completely...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2022/13/epjconf_efm2019_01072.pdf |
| _version_ | 1811308812690259968 |
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| author | Zemanová Lucie Rudolf Pavel Naumov Andrey V. Volkov Alexander V. |
| author_facet | Zemanová Lucie Rudolf Pavel Naumov Andrey V. Volkov Alexander V. |
| author_sort | Zemanová Lucie |
| collection | DOAJ |
| description | Disk friction losses can significantly influence the overall pump effciency. It is most pronounced in the case of machines with low or moderate specific speed, which has to be kept in mind during a design process of a pump. However, analyses using computational fluid dynamics (CFD) often completely neglect the sidewall gaps geometry. Correctly solved flow in the sidewall gaps can have a great impact on the whole flow pattern inside the pump and therefore it can considerably influence the calculated effciency. The paper is focused on the precise simulation of the flow in the spaces between impeller shrouds and casing. CFD study using embedded Large Eddy Simulation (LES) approach in order to achieve accurate insight into the flow in sidewall gaps and reasonable computational time was performed. Obtained results are compared with data from experimental measurements. |
| first_indexed | 2024-04-13T09:30:57Z |
| format | Article |
| id | doaj.art-374cd9686e244ff1befbb38cc9249c30 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-13T09:30:57Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-374cd9686e244ff1befbb38cc9249c302022-12-22T02:52:15ZengEDP SciencesEPJ Web of Conferences2100-014X2022-01-012690107210.1051/epjconf/202226901072epjconf_efm2019_01072Flow inside impeller sidewall gaps and disk friction of radial centrifugal pumpZemanová Lucie0Rudolf Pavel1Naumov Andrey V.2Volkov Alexander V.3Victor Kaplan Dept. of Fluid Eng., Faculty of Mech. Eng., Brno University of TechnologyVictor Kaplan Dept. of Fluid Eng., Faculty of Mech. Eng., Brno University of TechnologyNational Research University Moscow Power Engineering InstituteNational Research University Moscow Power Engineering InstituteDisk friction losses can significantly influence the overall pump effciency. It is most pronounced in the case of machines with low or moderate specific speed, which has to be kept in mind during a design process of a pump. However, analyses using computational fluid dynamics (CFD) often completely neglect the sidewall gaps geometry. Correctly solved flow in the sidewall gaps can have a great impact on the whole flow pattern inside the pump and therefore it can considerably influence the calculated effciency. The paper is focused on the precise simulation of the flow in the spaces between impeller shrouds and casing. CFD study using embedded Large Eddy Simulation (LES) approach in order to achieve accurate insight into the flow in sidewall gaps and reasonable computational time was performed. Obtained results are compared with data from experimental measurements.https://www.epj-conferences.org/articles/epjconf/pdf/2022/13/epjconf_efm2019_01072.pdf |
| spellingShingle | Zemanová Lucie Rudolf Pavel Naumov Andrey V. Volkov Alexander V. Flow inside impeller sidewall gaps and disk friction of radial centrifugal pump EPJ Web of Conferences |
| title | Flow inside impeller sidewall gaps and disk friction of radial centrifugal pump |
| title_full | Flow inside impeller sidewall gaps and disk friction of radial centrifugal pump |
| title_fullStr | Flow inside impeller sidewall gaps and disk friction of radial centrifugal pump |
| title_full_unstemmed | Flow inside impeller sidewall gaps and disk friction of radial centrifugal pump |
| title_short | Flow inside impeller sidewall gaps and disk friction of radial centrifugal pump |
| title_sort | flow inside impeller sidewall gaps and disk friction of radial centrifugal pump |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2022/13/epjconf_efm2019_01072.pdf |
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