Characteristics of Sheet Formed by Collision of Two Elliptical Jets at Short Impact DistanceSource: Journal of Fluids Engineering:;2016:;volume( 138 ):;issue: 005::page 51201DOI: 10.1115/1.4031869Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The research on characteristics of impinging jet has a long history and focuses mainly on the circular jets, whereas the impingement of noncircular jets, such as elliptical jets, receives much less attention. This paper investigated liquid sheet resulting from the oblique collision of two elliptical jets at short impact distance. The elliptical liquid jets contract and collide obliquely at impact point, forming a sheet in the form of a leaf bounded by a thicker rim. An improved theoretical model, taking jet contraction into account, for two elliptical impinging jets is established. The sheet features are obtained by combining the conservation equations between the liquid jet and sheet with the force balance equations of the sheet rim. The calculated sheet shapes are compared with the experiments, and the results show good agreement. The experimental results also indicate that the liquid sheet formed by elliptical jets tends to be larger and more unstable than that formed by circular jets. Based on the model, the effects of axial ratio and impact distance on the sheet characteristics, such as sheet shape and thickness, are also studied.
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| contributor author | Zhao, Fei | |
| contributor author | Yang, Li | |
| contributor author | Mo, Chao | |
| contributor author | Li, Xue | |
| date accessioned | 2017-05-09T01:29:32Z | |
| date available | 2017-05-09T01:29:32Z | |
| date issued | 2016 | |
| identifier issn | 0098-2202 | |
| identifier other | fe_138_05_051201.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/161359 | |
| description abstract | The research on characteristics of impinging jet has a long history and focuses mainly on the circular jets, whereas the impingement of noncircular jets, such as elliptical jets, receives much less attention. This paper investigated liquid sheet resulting from the oblique collision of two elliptical jets at short impact distance. The elliptical liquid jets contract and collide obliquely at impact point, forming a sheet in the form of a leaf bounded by a thicker rim. An improved theoretical model, taking jet contraction into account, for two elliptical impinging jets is established. The sheet features are obtained by combining the conservation equations between the liquid jet and sheet with the force balance equations of the sheet rim. The calculated sheet shapes are compared with the experiments, and the results show good agreement. The experimental results also indicate that the liquid sheet formed by elliptical jets tends to be larger and more unstable than that formed by circular jets. Based on the model, the effects of axial ratio and impact distance on the sheet characteristics, such as sheet shape and thickness, are also studied. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Characteristics of Sheet Formed by Collision of Two Elliptical Jets at Short Impact Distance | |
| type | Journal Paper | |
| journal volume | 138 | |
| journal issue | 5 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.4031869 | |
| journal fristpage | 51201 | |
| journal lastpage | 51201 | |
| identifier eissn | 1528-901X | |
| tree | Journal of Fluids Engineering:;2016:;volume( 138 ):;issue: 005 | |
| contenttype | Fulltext |