Prediction of the characteristic pressure pulsations in a reversible pump-turbine
- Autores
- Coussirat, Miguel; Moll, Flavio; MartÌnez, Germán
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión aceptada
- Descripción
- Reversible Pump- Turbine turbomachines are frequently used in peaking load hydroelectrical power plants. These plants contribute to satisfy the energy demand during peak load periods. Its dynamic behaviour is influenced by the flow structures developed along the distributor and runner vanes. This behaviour depends both on the internal design of the machine and its operating conditions, whether it works as pump or as a turbine. High-amplitude pressure pulsations appear due to the rotor-stator interaction phenomenon, and under certain operating conditions, the frequency of these pulses can seriously affect the structural integrity of the machine. The goal of this study is to assess the dynamic behaviour of a low-specific-speed reversible pump-turbine when working both as a turbine or as a pump. For validation, the obtained numerical results for the pressure pulsation in both operating modes are compared to experimental results measured on a working prototype. These results could be useful to enhance the knowledge concerning the behaviour of the pressure pulsations due to the internal flow dynamics into the machine.
Fil: Universidad Tecnológica Nacional. Facultad Regional Mendoza, Argentina - Materia
- Rotor-stator interaction, Turbulence, Pressure pulsation, Computational Fluid Dynamics, Reversible pump-turbine
- Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- CC0 1.0 Universal
- Repositorio
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- Institución
- Universidad Tecnológica Nacional
- OAI Identificador
- oai:ria.utn.edu.ar:20.500.12272/12868
Ver los metadatos del registro completo
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Prediction of the characteristic pressure pulsations in a reversible pump-turbineCoussirat, MiguelMoll, FlavioMartÌnez, GermánRotor-stator interaction, Turbulence, Pressure pulsation, Computational Fluid Dynamics, Reversible pump-turbineReversible Pump- Turbine turbomachines are frequently used in peaking load hydroelectrical power plants. These plants contribute to satisfy the energy demand during peak load periods. Its dynamic behaviour is influenced by the flow structures developed along the distributor and runner vanes. This behaviour depends both on the internal design of the machine and its operating conditions, whether it works as pump or as a turbine. High-amplitude pressure pulsations appear due to the rotor-stator interaction phenomenon, and under certain operating conditions, the frequency of these pulses can seriously affect the structural integrity of the machine. The goal of this study is to assess the dynamic behaviour of a low-specific-speed reversible pump-turbine when working both as a turbine or as a pump. For validation, the obtained numerical results for the pressure pulsation in both operating modes are compared to experimental results measured on a working prototype. These results could be useful to enhance the knowledge concerning the behaviour of the pressure pulsations due to the internal flow dynamics into the machine.Fil: Universidad Tecnológica Nacional. Facultad Regional Mendoza, ArgentinaUniversidad Tecnológica Nacional. Faculatd Regional Mendoza2025-05-07T13:44:07Z2023-11-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfAsociación Mecánica Computacionahttps://hdl.handle.net/20.500.12272/12868engMecánica Computacional (15): 433-442 (2023)info:eu-repo/semantics/openAccessCC0 1.0 Universalhttp://creativecommons.org/publicdomain/zero/1.0/Universidad Tecnológica Nacional, Facultad Regional MendozaCC BY (Autoría) CC BY-NC (Autoría – No Comercial)reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-10-01T11:56:50Zoai:ria.utn.edu.ar:20.500.12272/12868instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-10-01 11:56:51.743Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse |
| dc.title.none.fl_str_mv |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine |
| title |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine |
| spellingShingle |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine Coussirat, Miguel Rotor-stator interaction, Turbulence, Pressure pulsation, Computational Fluid Dynamics, Reversible pump-turbine |
| title_short |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine |
| title_full |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine |
| title_fullStr |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine |
| title_full_unstemmed |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine |
| title_sort |
Prediction of the characteristic pressure pulsations in a reversible pump-turbine |
| dc.creator.none.fl_str_mv |
Coussirat, Miguel Moll, Flavio MartÌnez, Germán |
| author |
Coussirat, Miguel |
| author_facet |
Coussirat, Miguel Moll, Flavio MartÌnez, Germán |
| author_role |
author |
| author2 |
Moll, Flavio MartÌnez, Germán |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Rotor-stator interaction, Turbulence, Pressure pulsation, Computational Fluid Dynamics, Reversible pump-turbine |
| topic |
Rotor-stator interaction, Turbulence, Pressure pulsation, Computational Fluid Dynamics, Reversible pump-turbine |
| dc.description.none.fl_txt_mv |
Reversible Pump- Turbine turbomachines are frequently used in peaking load hydroelectrical power plants. These plants contribute to satisfy the energy demand during peak load periods. Its dynamic behaviour is influenced by the flow structures developed along the distributor and runner vanes. This behaviour depends both on the internal design of the machine and its operating conditions, whether it works as pump or as a turbine. High-amplitude pressure pulsations appear due to the rotor-stator interaction phenomenon, and under certain operating conditions, the frequency of these pulses can seriously affect the structural integrity of the machine. The goal of this study is to assess the dynamic behaviour of a low-specific-speed reversible pump-turbine when working both as a turbine or as a pump. For validation, the obtained numerical results for the pressure pulsation in both operating modes are compared to experimental results measured on a working prototype. These results could be useful to enhance the knowledge concerning the behaviour of the pressure pulsations due to the internal flow dynamics into the machine. Fil: Universidad Tecnológica Nacional. Facultad Regional Mendoza, Argentina |
| description |
Reversible Pump- Turbine turbomachines are frequently used in peaking load hydroelectrical power plants. These plants contribute to satisfy the energy demand during peak load periods. Its dynamic behaviour is influenced by the flow structures developed along the distributor and runner vanes. This behaviour depends both on the internal design of the machine and its operating conditions, whether it works as pump or as a turbine. High-amplitude pressure pulsations appear due to the rotor-stator interaction phenomenon, and under certain operating conditions, the frequency of these pulses can seriously affect the structural integrity of the machine. The goal of this study is to assess the dynamic behaviour of a low-specific-speed reversible pump-turbine when working both as a turbine or as a pump. For validation, the obtained numerical results for the pressure pulsation in both operating modes are compared to experimental results measured on a working prototype. These results could be useful to enhance the knowledge concerning the behaviour of the pressure pulsations due to the internal flow dynamics into the machine. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-11-06 2025-05-07T13:44:07Z |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
Asociación Mecánica Computaciona https://hdl.handle.net/20.500.12272/12868 |
| identifier_str_mv |
Asociación Mecánica Computaciona |
| url |
https://hdl.handle.net/20.500.12272/12868 |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
Mecánica Computacional (15): 433-442 (2023) |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess CC0 1.0 Universal http://creativecommons.org/publicdomain/zero/1.0/ Universidad Tecnológica Nacional, Facultad Regional Mendoza CC BY (Autoría) CC BY-NC (Autoría – No Comercial) |
| eu_rights_str_mv |
openAccess |
| rights_invalid_str_mv |
CC0 1.0 Universal http://creativecommons.org/publicdomain/zero/1.0/ Universidad Tecnológica Nacional, Facultad Regional Mendoza CC BY (Autoría) CC BY-NC (Autoría – No Comercial) |
| dc.format.none.fl_str_mv |
pdf application/pdf |
| dc.publisher.none.fl_str_mv |
Universidad Tecnológica Nacional. Faculatd Regional Mendoza |
| publisher.none.fl_str_mv |
Universidad Tecnológica Nacional. Faculatd Regional Mendoza |
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reponame:Repositorio Institucional Abierto (UTN) instname:Universidad Tecnológica Nacional |
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Repositorio Institucional Abierto (UTN) |
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Repositorio Institucional Abierto (UTN) |
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Universidad Tecnológica Nacional |
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Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional |
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gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar |
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13.365483 |