Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model
We developed a numerical simulation code and a method of estimation for predicting the cavitation erosion in pumps. Cavitation erosion is closely related to cavitation intensity based on bubble dynamics. A “bubble flow model” simulates detailed bubble behavior in a cavitating flo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2010-06-01
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| Series: | Journal of Fluid Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_305/_pdf/-char/en |
| _version_ | 1818942618941259776 |
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| author | Masashi FUKAYA Yoshiaki TAMURA Yoichiro MATSUMOTO |
| author_facet | Masashi FUKAYA Yoshiaki TAMURA Yoichiro MATSUMOTO |
| author_sort | Masashi FUKAYA |
| collection | DOAJ |
| description | We developed a numerical simulation code and a method of estimation for predicting the cavitation erosion in pumps. Cavitation erosion is closely related to cavitation intensity based on bubble dynamics. A “bubble flow model” simulates detailed bubble behavior in a cavitating flow. Cavitation intensity was estimated by analyzing the bubble pressure and bubble nuclei distribution in a centrifugal pump. We simulated the impulsive bubble pressure that varied in microseconds. The impulsive pressure was considered to be related to actual bubble collapse, which caused cavitation erosion. The erosion area was experimentally detected using a paint method. The predicted high cavitation intensity area agreed well with the experimental erosion area, since the predicted and experimental areas were both located between the shroud and mid-point of the blade near the leading edge. Our code was thus effective for estimating the cavitation intensity and predicting the erosion area around the impeller of a centrifugal pump. |
| first_indexed | 2024-12-20T07:14:18Z |
| format | Article |
| id | doaj.art-f1fdfd2e42244c06a167d1ff806f9c79 |
| institution | Directory Open Access Journal |
| issn | 1880-5558 |
| language | English |
| last_indexed | 2024-12-20T07:14:18Z |
| publishDate | 2010-06-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Fluid Science and Technology |
| spelling | doaj.art-f1fdfd2e42244c06a167d1ff806f9c792022-12-21T19:48:50ZengThe Japan Society of Mechanical EngineersJournal of Fluid Science and Technology1880-55582010-06-015230531610.1299/jfst.5.305jfstPrediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow ModelMasashi FUKAYA0Yoshiaki TAMURA1Yoichiro MATSUMOTO2Hitachi, Ltd., Mechanical Engineering Research LaboratoryToyo University, Department of Computational Science and EngineeringUniversity of Tokyo, Department of Mechanical EngineeringWe developed a numerical simulation code and a method of estimation for predicting the cavitation erosion in pumps. Cavitation erosion is closely related to cavitation intensity based on bubble dynamics. A “bubble flow model” simulates detailed bubble behavior in a cavitating flow. Cavitation intensity was estimated by analyzing the bubble pressure and bubble nuclei distribution in a centrifugal pump. We simulated the impulsive bubble pressure that varied in microseconds. The impulsive pressure was considered to be related to actual bubble collapse, which caused cavitation erosion. The erosion area was experimentally detected using a paint method. The predicted high cavitation intensity area agreed well with the experimental erosion area, since the predicted and experimental areas were both located between the shroud and mid-point of the blade near the leading edge. Our code was thus effective for estimating the cavitation intensity and predicting the erosion area around the impeller of a centrifugal pump.https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_305/_pdf/-char/encavitating flow simulationbubble dynamicscavitation erosionpump |
| spellingShingle | Masashi FUKAYA Yoshiaki TAMURA Yoichiro MATSUMOTO Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model Journal of Fluid Science and Technology cavitating flow simulation bubble dynamics cavitation erosion pump |
| title | Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model |
| title_full | Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model |
| title_fullStr | Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model |
| title_full_unstemmed | Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model |
| title_short | Prediction of Cavitation Intensity and Erosion Area in Centrifugal Pump by Using Cavitating Flow Simulation with Bubble Flow Model |
| title_sort | prediction of cavitation intensity and erosion area in centrifugal pump by using cavitating flow simulation with bubble flow model |
| topic | cavitating flow simulation bubble dynamics cavitation erosion pump |
| url | https://www.jstage.jst.go.jp/article/jfst/5/2/5_2_305/_pdf/-char/en |
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