Prediction of the unsteady ventilated partial cavities
Approximate methods of computing the unsteady ventilated partial cavities created on both the plane and the cylindrical streamlined surfaces have been developed. The cases of plane partial cavities past a slender wedge-shaped cavitator, and axisymmetric partial cavities past a ring flange on the sur...
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| Format: | Article |
| Language: | English |
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National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
2020-12-01
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| Series: | Mechanics and Advanced Technologies |
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| Online Access: | http://journal.mmi.kpi.ua/article/view/212048 |
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| _version_ | 1849248936840134656 |
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| author | Volodymyr Semenenko Olena Naumova |
| author_facet | Volodymyr Semenenko Olena Naumova |
| author_sort | Volodymyr Semenenko |
| collection | DOAJ |
| description | Approximate methods of computing the unsteady ventilated partial cavities created on both the plane and the cylindrical streamlined surfaces have been developed. The cases of plane partial cavities past a slender wedge-shaped cavitator, and axisymmetric partial cavities past a ring flange on the surface of an infinite circular cylinder are considered. Results of computer simulation of the unsteady ventilated partial cavities of both that types are shown. A comparison of the unsteady behavior of plane and axisymmetric ventilated partial cavities is given. A comparative analysis of two methods of controlling the partial cavities by varying the cavitator shape and by regulating the gas supply rate into a cavity is given. It has been shown that the first method is more effective for a partial cavity on a plane. For an axisymmetric partial cavity on a cylinder, both the control methods appear ineffective. |
| format | Article |
| id | doaj-art-bcd2b0b3fd2843fa97f3a3ded6457a8e |
| institution | Kabale University |
| issn | 2521-1943 2522-4255 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" |
| record_format | Article |
| series | Mechanics and Advanced Technologies |
| spelling | doaj-art-bcd2b0b3fd2843fa97f3a3ded6457a8e2025-08-20T03:57:43ZengNational Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"Mechanics and Advanced Technologies2521-19432522-42552020-12-013(90)10.20535/2521-1943.2020.0.212048Prediction of the unsteady ventilated partial cavitiesVolodymyr Semenenko0Olena Naumova1Institute of Hydromechanics of the National Academy of Sciences of Ukraine, KyivInstitute of Hydromechanics of the National Academy of Sciences of Ukraine, KyivApproximate methods of computing the unsteady ventilated partial cavities created on both the plane and the cylindrical streamlined surfaces have been developed. The cases of plane partial cavities past a slender wedge-shaped cavitator, and axisymmetric partial cavities past a ring flange on the surface of an infinite circular cylinder are considered. Results of computer simulation of the unsteady ventilated partial cavities of both that types are shown. A comparison of the unsteady behavior of plane and axisymmetric ventilated partial cavities is given. A comparative analysis of two methods of controlling the partial cavities by varying the cavitator shape and by regulating the gas supply rate into a cavity is given. It has been shown that the first method is more effective for a partial cavity on a plane. For an axisymmetric partial cavity on a cylinder, both the control methods appear ineffective.http://journal.mmi.kpi.ua/article/view/212048partial cavityventilated cavityunsteady cavitydiscrete singularity methodcomputer simulation |
| spellingShingle | Volodymyr Semenenko Olena Naumova Prediction of the unsteady ventilated partial cavities Mechanics and Advanced Technologies partial cavity ventilated cavity unsteady cavity discrete singularity method computer simulation |
| title | Prediction of the unsteady ventilated partial cavities |
| title_full | Prediction of the unsteady ventilated partial cavities |
| title_fullStr | Prediction of the unsteady ventilated partial cavities |
| title_full_unstemmed | Prediction of the unsteady ventilated partial cavities |
| title_short | Prediction of the unsteady ventilated partial cavities |
| title_sort | prediction of the unsteady ventilated partial cavities |
| topic | partial cavity ventilated cavity unsteady cavity discrete singularity method computer simulation |
| url | http://journal.mmi.kpi.ua/article/view/212048 |
| work_keys_str_mv | AT volodymyrsemenenko predictionoftheunsteadyventilatedpartialcavities AT olenanaumova predictionoftheunsteadyventilatedpartialcavities |