Unducted Fan Aerodynamic DesignSource: Journal of Turbomachinery:;1987:;volume( 109 ):;issue: 003::page 313Author:L. H. Smith
DOI: 10.1115/1.3262108Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A method being used to design unducted fans, which are counterrotating propellers with unusually high disk loadings, is described. The quasi-three-dimensional approach employed is similar to that used for ducted fan designs; it consists of a circumferential-average flowfield analysis followed by cascade designs that include secondary flow and sweep effects. The open-tip condition enters as a significant secondary flow contribution. Blade shapes defined by this process are analyzed by a three-dimensional Euler solver and final adjustments are made as necessary. Examples of application of the method are presented to elucidate the magnitudes of the phenomena involved.
keyword(s): Design , Flow (Dynamics) , Cascades (Fluid dynamics) , Fans , Disks , Blades , Propellers AND Shapes ,
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| contributor author | L. H. Smith | |
| date accessioned | 2017-05-08T23:26:00Z | |
| date available | 2017-05-08T23:26:00Z | |
| date copyright | July, 1987 | |
| date issued | 1987 | |
| identifier issn | 0889-504X | |
| identifier other | JOTUEI-28585#313_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/103207 | |
| description abstract | A method being used to design unducted fans, which are counterrotating propellers with unusually high disk loadings, is described. The quasi-three-dimensional approach employed is similar to that used for ducted fan designs; it consists of a circumferential-average flowfield analysis followed by cascade designs that include secondary flow and sweep effects. The open-tip condition enters as a significant secondary flow contribution. Blade shapes defined by this process are analyzed by a three-dimensional Euler solver and final adjustments are made as necessary. Examples of application of the method are presented to elucidate the magnitudes of the phenomena involved. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Unducted Fan Aerodynamic Design | |
| type | Journal Paper | |
| journal volume | 109 | |
| journal issue | 3 | |
| journal title | Journal of Turbomachinery | |
| identifier doi | 10.1115/1.3262108 | |
| journal fristpage | 313 | |
| journal lastpage | 324 | |
| identifier eissn | 1528-8900 | |
| keywords | Design | |
| keywords | Flow (Dynamics) | |
| keywords | Cascades (Fluid dynamics) | |
| keywords | Fans | |
| keywords | Disks | |
| keywords | Blades | |
| keywords | Propellers AND Shapes | |
| tree | Journal of Turbomachinery:;1987:;volume( 109 ):;issue: 003 | |
| contenttype | Fulltext |