Study of Characteristics of Cloud Cavity Around Axisymmetric Projectile by Large Eddy SimulationSource: Journal of Fluids Engineering:;2014:;volume( 136 ):;issue: 005::page 51303Author:Yu, Xianxian
,
Huang, Chenguang
,
Du, Tezhuan
,
Liao, Lijuan
,
Wu, Xiaocui
,
Zheng, Zhi
,
Wang, Yiwei
DOI: 10.1115/1.4026583Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cavitation generally occurs where the pressure is lower than the saturated vapor pressure. Based on large eddy simulation (LES) methodology, an approach is developed to simulate dynamic behaviors of cavitation, using kخ¼ transport equation for subgrid terms combined with volume of fluid (VOF) description of cavitation and the Kunz model for mass transfer. The computation model is applied in a 3D field with an axisymmetric projectile at cavitation number دƒâ€‰= 0.58. Evolution of cavitation in simulation is consistent with the experiment. Clear understanding about cavitation can be obtained from the simulation in which many details and mechanisms are present. The phenomenon of boundary separation and reentry jet are observed. Reentry jet plays an important role in the bubble shedding.
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| contributor author | Yu, Xianxian | |
| contributor author | Huang, Chenguang | |
| contributor author | Du, Tezhuan | |
| contributor author | Liao, Lijuan | |
| contributor author | Wu, Xiaocui | |
| contributor author | Zheng, Zhi | |
| contributor author | Wang, Yiwei | |
| date accessioned | 2017-05-09T01:08:32Z | |
| date available | 2017-05-09T01:08:32Z | |
| date issued | 2014 | |
| identifier issn | 0098-2202 | |
| identifier other | fe_136_05_051303.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/154987 | |
| description abstract | Cavitation generally occurs where the pressure is lower than the saturated vapor pressure. Based on large eddy simulation (LES) methodology, an approach is developed to simulate dynamic behaviors of cavitation, using kخ¼ transport equation for subgrid terms combined with volume of fluid (VOF) description of cavitation and the Kunz model for mass transfer. The computation model is applied in a 3D field with an axisymmetric projectile at cavitation number دƒâ€‰= 0.58. Evolution of cavitation in simulation is consistent with the experiment. Clear understanding about cavitation can be obtained from the simulation in which many details and mechanisms are present. The phenomenon of boundary separation and reentry jet are observed. Reentry jet plays an important role in the bubble shedding. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Study of Characteristics of Cloud Cavity Around Axisymmetric Projectile by Large Eddy Simulation | |
| type | Journal Paper | |
| journal volume | 136 | |
| journal issue | 5 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.4026583 | |
| journal fristpage | 51303 | |
| journal lastpage | 51303 | |
| identifier eissn | 1528-901X | |
| tree | Journal of Fluids Engineering:;2014:;volume( 136 ):;issue: 005 | |
| contenttype | Fulltext |