An Investigation of the Influence of the Boundary Layers on the Performance of Centrifugal-Compressor ImpellersSource: Journal of Fluids Engineering:;1966:;volume( 088 ):;issue: 001::page 71Author:R. P. Lohmann
DOI: 10.1115/1.3645843Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Under certain conditions, poor performance of a centrifugal compressor can be attributed to irregularities in the velocity distribution at the entrance of the diffuser which may be caused by separation of, or secondary flows in, the boundary layers on the impeller surfaces. A detailed analysis is made of the boundary layers on the blade-suction surfaces and the shrouds of several radial-flow test impellers. Measurements of the discharge-velocity profile with a hot-wire anemometer show that the analysis successfully predicts the relative performance of the impellers. The installation of boundary-layer fences is shown to cause some reduction in the amount of secondary flow in the shroud boundary layers.
keyword(s): Compressors , Impellers , Boundary layers , Flow (Dynamics) , Separation (Technology) , Measurement , Suction , Diffusers , Wire , Blades AND Radial flow ,
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| contributor author | R. P. Lohmann | |
| date accessioned | 2017-05-08T23:44:59Z | |
| date available | 2017-05-08T23:44:59Z | |
| date copyright | March, 1966 | |
| date issued | 1966 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27271#71_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/114034 | |
| description abstract | Under certain conditions, poor performance of a centrifugal compressor can be attributed to irregularities in the velocity distribution at the entrance of the diffuser which may be caused by separation of, or secondary flows in, the boundary layers on the impeller surfaces. A detailed analysis is made of the boundary layers on the blade-suction surfaces and the shrouds of several radial-flow test impellers. Measurements of the discharge-velocity profile with a hot-wire anemometer show that the analysis successfully predicts the relative performance of the impellers. The installation of boundary-layer fences is shown to cause some reduction in the amount of secondary flow in the shroud boundary layers. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | An Investigation of the Influence of the Boundary Layers on the Performance of Centrifugal-Compressor Impellers | |
| type | Journal Paper | |
| journal volume | 88 | |
| journal issue | 1 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3645843 | |
| journal fristpage | 71 | |
| journal lastpage | 81 | |
| identifier eissn | 1528-901X | |
| keywords | Compressors | |
| keywords | Impellers | |
| keywords | Boundary layers | |
| keywords | Flow (Dynamics) | |
| keywords | Separation (Technology) | |
| keywords | Measurement | |
| keywords | Suction | |
| keywords | Diffusers | |
| keywords | Wire | |
| keywords | Blades AND Radial flow | |
| tree | Journal of Fluids Engineering:;1966:;volume( 088 ):;issue: 001 | |
| contenttype | Fulltext |