| contributor author | Enrique Cabrera | |
| contributor author | José Abreu | |
| contributor author | Rafael Pérez | |
| contributor author | Antonio Vela | |
| date accessioned | 2017-05-08T20:41:22Z | |
| date available | 2017-05-08T20:41:22Z | |
| date copyright | December 1992 | |
| date issued | 1992 | |
| identifier other | %28asce%290733-9429%281992%29118%3A12%281639%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/23592 | |
| description abstract | When a problem of hydraulic transients with entrapped air in pipelines and/or with water‐column separation is tackled, the variation of the length of the liquid column is not usually taken into account. In this paper (due largely to the assumption of a system with a cross section at the air‐water interface in a horizontal pipeline), it is shown that in a system with entrapped air and without changes of potential energy at the air‐water interface (horizontal pipe) the final pressure obtained in a mass oscillation in which the kinetic energy of the fluid and the liquid column length variation are neglected is the same as the final pressure obtained from the consideration of both effects. This peak pressure is also independent of the assumed polytropic exponent for the entrapped‐air compression. Nevertheless, the instant when the maximum is achieved is different. | |
| publisher | American Society of Civil Engineers | |
| title | Influence of Liquid Length Variation in Hydraulic Transients | |
| type | Journal Paper | |
| journal volume | 118 | |
| journal issue | 12 | |
| journal title | Journal of Hydraulic Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9429(1992)118:12(1639) | |
| tree | Journal of Hydraulic Engineering:;1992:;Volume ( 118 ):;issue: 012 | |
| contenttype | Fulltext | |
