Experimental investigation of hydrodynamic cavitation through orifices of different geometries
Hydrodynamic cavitation in single and multihole orifices was experimentally investigated to assess their hydraulic characteristics: loss coefficients, inception cavitation number, cavitation number for transition to supercavitation. Significant difference for singlehole and multihole orifices was ob...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2017-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201714302098 |
| _version_ | 1818911816856633344 |
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| author | Rudolf Pavel Kubina Dávid Hudec Martin Kozák Jiří Maršálek Blahoslav Maršálková Eliška Pochylý František |
| author_facet | Rudolf Pavel Kubina Dávid Hudec Martin Kozák Jiří Maršálek Blahoslav Maršálková Eliška Pochylý František |
| author_sort | Rudolf Pavel |
| collection | DOAJ |
| description | Hydrodynamic cavitation in single and multihole orifices was experimentally investigated to assess their hydraulic characteristics: loss coefficients, inception cavitation number, cavitation number for transition to supercavitation. Significant difference for singlehole and multihole orifices was observed in terms of the measured loss coefficient. It is significantly more effective to use multihole orifices, where energy dissipation is much lower.It was found that using scaling factor given by ratio of orifice thickness suggests linear behaviour of both loss coefficient and inception cavitation number. Orifices seem to be convenient choice as flow constriction devices inducing cavitation due to their simplicity. |
| first_indexed | 2024-12-19T23:04:43Z |
| format | Article |
| id | doaj.art-053dce4a7a43451d86cd6938b4ec3da5 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-19T23:04:43Z |
| publishDate | 2017-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-053dce4a7a43451d86cd6938b4ec3da52022-12-21T20:02:25ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011430209810.1051/epjconf/201714302098epjconf_efm2017_02098Experimental investigation of hydrodynamic cavitation through orifices of different geometriesRudolf Pavel0Kubina Dávid1Hudec Martin2Kozák Jiří3Maršálek Blahoslav4Maršálková Eliška5Pochylý František6Brno University of Technology, Faculty of Mechanical Engineering, V. Kaplan Department of Fluid EngineeringBrno University of Technology, Faculty of Mechanical Engineering, V. Kaplan Department of Fluid EngineeringBrno University of Technology, Faculty of Mechanical Engineering, V. Kaplan Department of Fluid EngineeringBrno University of Technology, Faculty of Mechanical Engineering, V. Kaplan Department of Fluid EngineeringInstitute of Botany – Academy of Sciences of the Czech RepublicInstitute of Botany – Academy of Sciences of the Czech RepublicBrno University of Technology, Faculty of Mechanical Engineering, V. Kaplan Department of Fluid EngineeringHydrodynamic cavitation in single and multihole orifices was experimentally investigated to assess their hydraulic characteristics: loss coefficients, inception cavitation number, cavitation number for transition to supercavitation. Significant difference for singlehole and multihole orifices was observed in terms of the measured loss coefficient. It is significantly more effective to use multihole orifices, where energy dissipation is much lower.It was found that using scaling factor given by ratio of orifice thickness suggests linear behaviour of both loss coefficient and inception cavitation number. Orifices seem to be convenient choice as flow constriction devices inducing cavitation due to their simplicity.https://doi.org/10.1051/epjconf/201714302098 |
| spellingShingle | Rudolf Pavel Kubina Dávid Hudec Martin Kozák Jiří Maršálek Blahoslav Maršálková Eliška Pochylý František Experimental investigation of hydrodynamic cavitation through orifices of different geometries EPJ Web of Conferences |
| title | Experimental investigation of hydrodynamic cavitation through orifices of different geometries |
| title_full | Experimental investigation of hydrodynamic cavitation through orifices of different geometries |
| title_fullStr | Experimental investigation of hydrodynamic cavitation through orifices of different geometries |
| title_full_unstemmed | Experimental investigation of hydrodynamic cavitation through orifices of different geometries |
| title_short | Experimental investigation of hydrodynamic cavitation through orifices of different geometries |
| title_sort | experimental investigation of hydrodynamic cavitation through orifices of different geometries |
| url | https://doi.org/10.1051/epjconf/201714302098 |
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