Computational Fluid Dynamic Simulation of Single and Two Phase Vortex Flow—A Comparison of Flow Field and Energy SeparationSource: Journal of Heat Transfer:;2016:;volume( 138 ):;issue: 008::page 82003DOI: 10.1115/1.4033388Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In the present work, a computational fluid dynamic (CFD) simulation has been performed to investigate single and twophase vortex tube. Air in compressed form and partially condensed phase are used as working fluid, respectively. Simulation has been carried out using commercial CFD software package fluent 6.3.26. A detailed study has been performed to generate the profiles of velocity, pressure, and pathlines. These profiles provide an insight on how the process of energy separation as well as the flow field in the vortex tube gets affected on introduction of a liquid phase. The result shows that in case of cryogenic vortex tube, the flow reversal takes place closer to wall due to presence of a very thin wall adhering liquid film, while, in singlephase flow vortex tube, flow reversal is observed at the central portion. The model also predicts that presence of recirculation zone near warm end diminishes the refrigeration effect of vortex tube for twophase flow.
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| contributor author | Sharma, Gaurav | |
| contributor author | Ghosh, Sumana | |
| contributor author | Karmakar, Srinibas | |
| date accessioned | 2017-05-09T01:30:31Z | |
| date available | 2017-05-09T01:30:31Z | |
| date issued | 2016 | |
| identifier issn | 0022-1481 | |
| identifier other | ht_138_08_084504.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/161642 | |
| description abstract | In the present work, a computational fluid dynamic (CFD) simulation has been performed to investigate single and twophase vortex tube. Air in compressed form and partially condensed phase are used as working fluid, respectively. Simulation has been carried out using commercial CFD software package fluent 6.3.26. A detailed study has been performed to generate the profiles of velocity, pressure, and pathlines. These profiles provide an insight on how the process of energy separation as well as the flow field in the vortex tube gets affected on introduction of a liquid phase. The result shows that in case of cryogenic vortex tube, the flow reversal takes place closer to wall due to presence of a very thin wall adhering liquid film, while, in singlephase flow vortex tube, flow reversal is observed at the central portion. The model also predicts that presence of recirculation zone near warm end diminishes the refrigeration effect of vortex tube for twophase flow. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Computational Fluid Dynamic Simulation of Single and Two Phase Vortex Flow—A Comparison of Flow Field and Energy Separation | |
| type | Journal Paper | |
| journal volume | 138 | |
| journal issue | 8 | |
| journal title | Journal of Heat Transfer | |
| identifier doi | 10.1115/1.4033388 | |
| journal fristpage | 82003 | |
| journal lastpage | 82003 | |
| identifier eissn | 1528-8943 | |
| tree | Journal of Heat Transfer:;2016:;volume( 138 ):;issue: 008 | |
| contenttype | Fulltext |