Analysis of Cavitation Instabilities in a Four-Blade Inducer
The cavitating behavior of a four-blade inducer tested in the LML laboratory large test facility is considered in the present paper. Experimental investigations based on unsteady pressure measurements and records from a six-component balance mounted on the inducer shaft are performed. Spectral analy...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | International Journal of Rotating Machinery |
| Online Access: | http://dx.doi.org/10.1155/2012/213907 |
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| _version_ | 1832565239782047744 |
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| author | O. Coutier-Delgosha A. Dazin G. Caignaert G. Bois |
| author_facet | O. Coutier-Delgosha A. Dazin G. Caignaert G. Bois |
| author_sort | O. Coutier-Delgosha |
| collection | DOAJ |
| description | The cavitating behavior of a four-blade inducer tested in the LML laboratory large test facility is considered in the present paper. Experimental investigations based on unsteady pressure measurements and records from a six-component balance mounted on the inducer shaft are performed. Spectral analysis of the signals enables to detect several characteristic frequencies related to unbalanced two-phase flow patterns. The objective of the present paper is the understanding of the physical phenomena associated to these frequencies. Therefore, wavelet decomposition, flow visualizations, and direct analysis of the high-frequency force, moment, and pressure signals are applied. Results at nominal flow rate only are considered. Not only classical unbalanced cavitation patterns, but also unexpected flow organizations are discussed. |
| format | Article |
| id | doaj-art-7227f719e6644eb29f9cc6c3e43d2f83 |
| institution | Kabale University |
| issn | 1023-621X 1542-3034 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Rotating Machinery |
| spelling | doaj-art-7227f719e6644eb29f9cc6c3e43d2f832025-02-03T01:08:56ZengWileyInternational Journal of Rotating Machinery1023-621X1542-30342012-01-01201210.1155/2012/213907213907Analysis of Cavitation Instabilities in a Four-Blade InducerO. Coutier-Delgosha0A. Dazin1G. Caignaert2G. Bois3Arts et Metiers ParisTech/LML Laboratory, 8 boulevard Louis XIV, 59046 Lille Cedex, FranceArts et Metiers ParisTech/LML Laboratory, 8 boulevard Louis XIV, 59046 Lille Cedex, FranceArts et Metiers ParisTech/LML Laboratory, 8 boulevard Louis XIV, 59046 Lille Cedex, FranceArts et Metiers ParisTech/LML Laboratory, 8 boulevard Louis XIV, 59046 Lille Cedex, FranceThe cavitating behavior of a four-blade inducer tested in the LML laboratory large test facility is considered in the present paper. Experimental investigations based on unsteady pressure measurements and records from a six-component balance mounted on the inducer shaft are performed. Spectral analysis of the signals enables to detect several characteristic frequencies related to unbalanced two-phase flow patterns. The objective of the present paper is the understanding of the physical phenomena associated to these frequencies. Therefore, wavelet decomposition, flow visualizations, and direct analysis of the high-frequency force, moment, and pressure signals are applied. Results at nominal flow rate only are considered. Not only classical unbalanced cavitation patterns, but also unexpected flow organizations are discussed.http://dx.doi.org/10.1155/2012/213907 |
| spellingShingle | O. Coutier-Delgosha A. Dazin G. Caignaert G. Bois Analysis of Cavitation Instabilities in a Four-Blade Inducer International Journal of Rotating Machinery |
| title | Analysis of Cavitation Instabilities in a Four-Blade Inducer |
| title_full | Analysis of Cavitation Instabilities in a Four-Blade Inducer |
| title_fullStr | Analysis of Cavitation Instabilities in a Four-Blade Inducer |
| title_full_unstemmed | Analysis of Cavitation Instabilities in a Four-Blade Inducer |
| title_short | Analysis of Cavitation Instabilities in a Four-Blade Inducer |
| title_sort | analysis of cavitation instabilities in a four blade inducer |
| url | http://dx.doi.org/10.1155/2012/213907 |
| work_keys_str_mv | AT ocoutierdelgosha analysisofcavitationinstabilitiesinafourbladeinducer AT adazin analysisofcavitationinstabilitiesinafourbladeinducer AT gcaignaert analysisofcavitationinstabilitiesinafourbladeinducer AT gbois analysisofcavitationinstabilitiesinafourbladeinducer |