Bed Shear Stress around a Slender Obstruction in Different Channel Section
Journal Title: Journal of River Engineering - Year 2014, Vol 2, Issue 4
Abstract
Study of shear stress in bed channel may be considered as prerequisite for study of sediment transportation, as sediment transports due to shear stress which acts because of fluid flowing above it. Shear stress in bed and cylinder due to fluid flow around a vertical cylinder placed in non-erodible bed is numerically analyzed using k- ϵ model. In the present study, three types of channel section is considered; rectangular, trapezoidal and s-shape channel section. A cylindrical pier is placed in the mid- section of the channel and bed shear is found for different aspect ratio of pier diameter and channel section with different mean flow velocity. Square relation between maximum shear stress and mean velocity was observed. For low flow velocities and large channel aspect ratio, shear stress is found to be independent of cross section of the channel, width of the channel and shape of the channel.
Authors and Affiliations
sabita madhvi singh - U. Ghosh - P. R. Maiti
Keywords
Related Articles
- EP ID EP32971
- DOI -
- Views 354
- Downloads 0
Study of Hydrological Inflow Regime to the Maroon Reservoir Dam and Flood Events
Maroon Dam with maximum volume of 1274 MCM was built on this river by Khuzestan Water & Power Authority (Dams Identity). The dam Controls the Destroyer Floods and adjusts water And Energy and prevents from seasonal hi...
Utilization of LARS-WG Model for Modelling of Meteorological Parameters in Golestan Province of Iran
The impact of climate change on hydrologic design and management of hydro systems could be one of the important challenges faced by future practicing hydrologists and water resource managers. Issues such as risk, reliabi...
Laboratory Investigation of Environmental Friendly Fishway for Rubber Dams
Since they serve important roles in fish migration and survival, the fishway are the main components of river cross structures like dams. Recent years have witnessed an amalgamation of researches and development of ru...
Floodplain Modeling Using HEC-RAS and MIKE11 Models
A significant deficiency of most computer models used for stream floodplain analysis is that the locations of structures impacted by floodwaters, such as bridges, roads, and buildings, cannot be effectively compared t...
Experiments on Inclined Negatively Buoyant Jets in Shallow Streams
Experimental runs of discharge of saltwater solution inclined at six different angles of 30°, 45°, 60°, 75°, 90° and 115° to the horizontal for three ratios of jet’s initial velocity to mean ambient fluid velocity and...