Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil Section
For numerical simulations of cavitating flows, many physical models are currently used. One approach is the void fraction transport equation-based model including source terms for vaporization and condensation processes. Various source terms have been proposed by different researchers. However, they...
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| Format: | Article |
| Language: | English |
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Wiley
2008-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2008/146234 |
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| author | S. Frikha O. Coutier-Delgosha J. A. Astolfi |
| author_facet | S. Frikha O. Coutier-Delgosha J. A. Astolfi |
| author_sort | S. Frikha |
| collection | DOAJ |
| description | For numerical simulations of cavitating flows, many physical models are currently used. One approach is the void fraction transport equation-based model including source terms for vaporization and condensation processes. Various source terms have been proposed by different researchers. However, they have been tested only in different flow configurations, which make direct comparisons between the results difficult. A comparative study, based on the expression of the source terms as a function of the pressure, is presented in the present paper. This analytical approach demonstrates a large resemblance between the models, and it also clarifies the influence of the model parameters on the vaporization and condensation terms and, therefore, on the cavity shape and behavior. Some of the models were also tested using a 2D CFD code in configurations of cavitation on two-dimensional foil sections. Void fraction distributions and frequency of the cavity oscillations were compared to existing experimental measurements. These numerical results confirm the analytical study. |
| format | Article |
| id | doaj-art-a7cb2158c01d48c594dc4f4238b671a1 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-a7cb2158c01d48c594dc4f4238b671a12025-02-03T05:51:39ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342008-01-01200810.1155/2008/146234146234Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil SectionS. Frikha0O. Coutier-Delgosha1J. A. Astolfi2Institut de Recherche de l'Ecole Navale - Ea3634, Bp 600, 29240 Brest Naval, FranceLML Laboratory, ENSAM Lille, 8 Boulevard Louis XIV, 59046 Lille Cedex, FranceInstitut de Recherche de l'Ecole Navale - Ea3634, Bp 600, 29240 Brest Naval, FranceFor numerical simulations of cavitating flows, many physical models are currently used. One approach is the void fraction transport equation-based model including source terms for vaporization and condensation processes. Various source terms have been proposed by different researchers. However, they have been tested only in different flow configurations, which make direct comparisons between the results difficult. A comparative study, based on the expression of the source terms as a function of the pressure, is presented in the present paper. This analytical approach demonstrates a large resemblance between the models, and it also clarifies the influence of the model parameters on the vaporization and condensation terms and, therefore, on the cavity shape and behavior. Some of the models were also tested using a 2D CFD code in configurations of cavitation on two-dimensional foil sections. Void fraction distributions and frequency of the cavity oscillations were compared to existing experimental measurements. These numerical results confirm the analytical study.http://dx.doi.org/10.1155/2008/146234 |
| spellingShingle | S. Frikha O. Coutier-Delgosha J. A. Astolfi Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil Section International Journal of Rotating Machinery |
| title | Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil Section |
| title_full | Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil Section |
| title_fullStr | Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil Section |
| title_full_unstemmed | Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil Section |
| title_short | Influence of the Cavitation Model on the Simulation of Cloud Cavitation on 2D Foil Section |
| title_sort | influence of the cavitation model on the simulation of cloud cavitation on 2d foil section |
| url | http://dx.doi.org/10.1155/2008/146234 |
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