Ir al contenido (pulsa Retorno)

Universitat Politècnica de Catalunya

    • Català
    • Castellano
    • English
    • LoginRegisterLog in (no UPC users)
  • mailContact Us
  • world English 
    • Català
    • Castellano
    • English
  • userLogin   
      LoginRegisterLog in (no UPC users)

UPCommons. Global access to UPC knowledge

58.785 UPC E-Prints
You are here:
View Item 
  •   DSpace Home
  • E-prints
  • Departaments
  • Departament de Mecànica de Fluids
  • Articles de revista
  • View Item
  •   DSpace Home
  • E-prints
  • Departaments
  • Departament de Mecànica de Fluids
  • Articles de revista
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Added mass effects on a Francis turbine runner with attached blade cavitation

Thumbnail
View/Open
fluids-04-00107.pdf (5,239Mb)
Share:
 
 
10.3390/fluids4020107
 
  View Usage Statistics
Cita com:
hdl:2117/167922

Show full item record
Huang, Xingxing
Escaler Puigoriol, Francesc XavierMés informacióMés informacióMés informació
Document typeArticle
Defense date2019-06-11
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
To have a safe structural design, an analysis of the dynamic behavior of a Francis turbine runner with consideration of the added mass e ects of surrounding water is necessary during design phase. Both in design and at o -design operations, large-scale forms of attached cavitation may appear on runner blades and can change the added mass e ects of the surrounding fluid in relation to a single water domain. Consequently, a numerical investigation of the modal response of a Francis runner has been carried out by reproducing the presence of various sizes of leading edge cavitation (LEC) and trailing edge cavitation (TEC). The fluid–structure interaction problem has been solved by means of an acoustic-structural coupling method. The calculated added mass e ects with cavitation have been compared with those corresponding to the pure water condition without cavitation. Firstly, a single blade has been investigated to evaluate the level of significance for the proposed cavity shapes and dimensions. Afterwards, based on the results obtained, the complete runner structure has been considered, factoring in similar cavity shapes and locations. The results prove that significant added mass e ects are induced on the entire runner by the attached cavitation that increase the natural frequencies of the first modes. Moreover, the added mass e ects increase with cavity size and amplitude of blade deformation below the cavity.
CitationHuang , X.; Escaler, X. Added mass effects on a Francis turbine runner with attached blade cavitation. "Fluids", 11 Juny 2019, vol. 4, núm. 2, p. 107-1-107-19. 
URIhttp://hdl.handle.net/2117/167922
DOI10.3390/fluids4020107
ISSN2311-5521
Publisher versionhttps://www.mdpi.com/2311-5521/4/2/107
Collections
  • Departament de Mecànica de Fluids - Articles de revista [368]
  • CDIF - Centre de Diagnòstic Industrial i Fluidodinàmica - Articles de revista [61]
Share:
 
  View Usage Statistics

Show full item record

FilesDescriptionSizeFormatView
fluids-04-00107.pdf5,239MbPDFView/Open

Browse

This CollectionBy Issue DateAuthorsOther contributionsTitlesSubjectsThis repositoryCommunities & CollectionsBy Issue DateAuthorsOther contributionsTitlesSubjects

© UPC Obrir en finestra nova . Servei de Biblioteques, Publicacions i Arxius

info.biblioteques@upc.edu

  • About This Repository
  • Contact Us
  • Send Feedback
  • Inici de la pàgina