Frequency-Dependent Friction in Transient Pipe FlowSource: Journal of Fluids Engineering:;1968:;volume( 090 ):;issue: 001::page 109Author:W. Zielke
DOI: 10.1115/1.3605049Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An equation is derived, which relates the wall shear stress in transient laminar pipe flow to the instantaneous mean velocity and to the weighted past velocity changes. The term is applied to the method of characteristics to calculate water-hammer phenomena in viscous fluids, in which effects of frequency-dependent friction cause distortion of traveling waves. Theoretical results are compared with the experimental pressure fluctuation due to an instantaneous valve closure and show accurate prediction of the response curve.
keyword(s): Friction , Pipe flow , Valves , Equations , Travel , Fluids , Stress , Waves , Shear (Mechanics) , Water hammer AND Pressure ,
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| contributor author | W. Zielke | |
| date accessioned | 2017-05-09T00:08:57Z | |
| date available | 2017-05-09T00:08:57Z | |
| date copyright | March, 1968 | |
| date issued | 1968 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27310#109_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/127623 | |
| description abstract | An equation is derived, which relates the wall shear stress in transient laminar pipe flow to the instantaneous mean velocity and to the weighted past velocity changes. The term is applied to the method of characteristics to calculate water-hammer phenomena in viscous fluids, in which effects of frequency-dependent friction cause distortion of traveling waves. Theoretical results are compared with the experimental pressure fluctuation due to an instantaneous valve closure and show accurate prediction of the response curve. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Frequency-Dependent Friction in Transient Pipe Flow | |
| type | Journal Paper | |
| journal volume | 90 | |
| journal issue | 1 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3605049 | |
| journal fristpage | 109 | |
| journal lastpage | 115 | |
| identifier eissn | 1528-901X | |
| keywords | Friction | |
| keywords | Pipe flow | |
| keywords | Valves | |
| keywords | Equations | |
| keywords | Travel | |
| keywords | Fluids | |
| keywords | Stress | |
| keywords | Waves | |
| keywords | Shear (Mechanics) | |
| keywords | Water hammer AND Pressure | |
| tree | Journal of Fluids Engineering:;1968:;volume( 090 ):;issue: 001 | |
| contenttype | Fulltext |