Search for dissertations about: "Anders Wörman"
Showing result 6 - 10 of 19 swedish dissertations containing the words Anders Wörman.
-
6. Air-pocket transport in conjunction with bottom-outlet conduits for dams
Abstract : Undesired air entrainment in bottom outlet conduits of dams may cause pressure transients, leading to conduit vibrations, blowback, discharge pulsation and even cavitation, and jeopardize the operational safety. Due to design limitations or construction costs, it is impossible to create an air free environment in a pressurized pipe. READ MORE
-
7. Modelling air―water flows in bottom outlets of dams
Abstract : If air is entrained in a bottom outlet of a dam in an uncontrolled way, the resulting air pockets may cause problems such as blowback, blowout and loss of discharge capacity. In order to provide guidance for bottom outlet design and operation, this study examines how governing parameters affect air entrainment, air-pocket transport and de-aeration and the surrounding flow structure in pipe flows. READ MORE
-
8. Topographic Control of Groundwater Flow
Abstract : Gravity is the main driving force for groundwater flow, and both landscape topography and geology distribute the effects of gravity on groundwater flow. The groundwater table defines the distribution of the potential energy of the water. READ MORE
-
9. Modeling flow and sediment transport in water bodies and watersheds
Abstract : The research focus is on the various modeling aspects of flow and sediment transport in water bodies and watersheds. The interaction of flow with a mobile bed involves a complex process in which various turbulent scales characterized by coherent structures cause a chaotic sediment motion. READ MORE
-
10. Multi-Scale Surface Water-Groundwater Interaction : Implications for GroundwaterDischarge Patterns
Abstract : Rivers and aquifers are continuously exchanging water, driven by processes that occur on various temporal and spatial scales, ranging from small streambed features to large geological structures. The interaction between these two components occurs in permeable sediments below the stream channel, called the hyporheic zone. READ MORE