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Details van artikel 23 van 88 gevonden artikelen
| Titel: |
A Study of Moving Hydruaulic Jump in Rectangular Channels |
| Auteur: |
A. Parvaresh Rizi S. Kouchakzadeh M.H. Omid |
| Verschenen in: |
Journal of applied sciences |
| Paginering: | Jaargang 6 (2006) nr. 5 pagina's 1192-1198 |
| Jaar: |
2006 |
| Inhoud: |
The occurrence of unsteady super and subcritical flow regimes is considered as a special case in unsteady flow in a channel reach which can clearly be exemplified by a moving hydraulic jump. Some complexity is inherent in the numerical analysis of such flow condition and published experimental data regarding this kind of flow are scarce. In this research an experimental setup was prepared to compile the hydraulic behavior of a moving hydraulic jump in a rectangular flume. The flume was equipped with a sluice gate at the upstream boundary. A temporal water stages were generated at the upstream side of the gate in order to provide unsteady supercritical flow regime at its downstream side and moving hydraulic jumps along the channel for the different downstream end boundary conditions. Based on the recorded data, some flow parameters such as flow depth, pressure head and energy head were determined. The results reveal the presence of relationships between the discharge and moving hydraulic jump parameters. Also, by applying proper assumptions and using steady state momentum and energy equations, simple and time independent relationships were obtained, that reasonably determines the pressure head in subcritical region of unsteady mixed flow. Consequently, having the discharge variation as a boundary condition, the moving hydraulic jump parameter could reliably be determined based on time independent relationships. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 23 van 88 gevonden artikelen
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