Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion
The work is devoted to both the experimental studies and the computer simulation of the process of formation and development of a ventilated supercavity past the disk-cavitator in accelerated motion from the state of rest to the steady velocity. A series of experiments were carried out in the high-...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"
2023-09-01
|
| Series: | Mechanics and Advanced Technologies |
| Subjects: | |
| Online Access: | https://journal.mmi.kpi.ua/article/view/286337 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849407880822784000 |
|---|---|
| author | Olena Naumova Volodymyr Moroz Viktor Kochin Volodymyr Semenenko |
| author_facet | Olena Naumova Volodymyr Moroz Viktor Kochin Volodymyr Semenenko |
| author_sort | Olena Naumova |
| collection | DOAJ |
| description |
The work is devoted to both the experimental studies and the computer simulation of the process of formation and development of a ventilated supercavity past the disk-cavitator in accelerated motion from the state of rest to the steady velocity. A series of experiments were carried out in the high-speed experimental tank at the Institute of Hydromechanics of the National Academy of Sciences of Ukraine for various values of the air-supply rate into the cavity. It has been established that the portion type of air-loss from the cavity is always preserved in the case of horizontal accelerated motion, while the air-loss by vortex tubes is always realized in the case of steady motion with the same velocity. In this case, shape of the cross sections of the unsteady cavity is close to circular one along the whole cavity length and at all stages of acceleration. To describe this process, a modified mathematical model is proposed that is based on the G.V.Logvinovich principle of independence of the cavity section expansion. An analysis of the influence of both the immersion depth and the air-supply rate on the process of development of a ventilated supercavity during acceleration has been performed by the way of computer simulation.
|
| format | Article |
| id | doaj-art-b8ee6fb9d6ec4559adea4c5f8a9874fb |
| institution | Kabale University |
| issn | 2521-1943 2522-4255 |
| language | English |
| publishDate | 2023-09-01 |
| publisher | National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute" |
| record_format | Article |
| series | Mechanics and Advanced Technologies |
| spelling | doaj-art-b8ee6fb9d6ec4559adea4c5f8a9874fb2025-08-20T03:35:54ZengNational Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute"Mechanics and Advanced Technologies2521-19432522-42552023-09-0172 (98)10.20535/2521-1943.2023.7.2.286337324567Formation and development of ventilated supercavity past the disk–cavitator in accelerated motionOlena Naumova0Volodymyr Moroz1Viktor Kochin2Volodymyr Semenenko3Institute of Hydromechanics of NAS of UkraineInstitute of Hydromechanics of NAS of UkraineInstitute of Hydromechanics of NAS of UkraineInstitute of Hydromechanics of NAS of Ukraine The work is devoted to both the experimental studies and the computer simulation of the process of formation and development of a ventilated supercavity past the disk-cavitator in accelerated motion from the state of rest to the steady velocity. A series of experiments were carried out in the high-speed experimental tank at the Institute of Hydromechanics of the National Academy of Sciences of Ukraine for various values of the air-supply rate into the cavity. It has been established that the portion type of air-loss from the cavity is always preserved in the case of horizontal accelerated motion, while the air-loss by vortex tubes is always realized in the case of steady motion with the same velocity. In this case, shape of the cross sections of the unsteady cavity is close to circular one along the whole cavity length and at all stages of acceleration. To describe this process, a modified mathematical model is proposed that is based on the G.V.Logvinovich principle of independence of the cavity section expansion. An analysis of the influence of both the immersion depth and the air-supply rate on the process of development of a ventilated supercavity during acceleration has been performed by the way of computer simulation. https://journal.mmi.kpi.ua/article/view/286337disk cavitator, ventilated supercavity, accelerated motion, experimental studies, computer simulation |
| spellingShingle | Olena Naumova Volodymyr Moroz Viktor Kochin Volodymyr Semenenko Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion Mechanics and Advanced Technologies disk cavitator, ventilated supercavity, accelerated motion, experimental studies, computer simulation |
| title | Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion |
| title_full | Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion |
| title_fullStr | Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion |
| title_full_unstemmed | Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion |
| title_short | Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion |
| title_sort | formation and development of ventilated supercavity past the disk cavitator in accelerated motion |
| topic | disk cavitator, ventilated supercavity, accelerated motion, experimental studies, computer simulation |
| url | https://journal.mmi.kpi.ua/article/view/286337 |
| work_keys_str_mv | AT olenanaumova formationanddevelopmentofventilatedsupercavitypastthediskcavitatorinacceleratedmotion AT volodymyrmoroz formationanddevelopmentofventilatedsupercavitypastthediskcavitatorinacceleratedmotion AT viktorkochin formationanddevelopmentofventilatedsupercavitypastthediskcavitatorinacceleratedmotion AT volodymyrsemenenko formationanddevelopmentofventilatedsupercavitypastthediskcavitatorinacceleratedmotion |