A new tool for hydrokinetic energy potential assessment in rivers—HYDROKAL, which stands for a ‘‘hydrokinetic calculator’’—is presented. This tool was developed in the Fortran 90 programming language as an external module for the CCHE2D application, an existing two-dimensional hydrodynamic numerical model developed at the National Center for Computational Hydroscience and Engineering, Universit...

Hydropower is an important tool in the struggle for low-emission power production. In Nordic countries, hydropower operating conditions are expected to change and work more conjunction with intermittent This turn might increase amount of hydropeaking events reaches downstream plants. The current investigates influence highly flexible, high-frequency on hydrodynamics reach. By quantifying four d...

River dynamics involve complex, incompletely understood interactions among flow, sediment transport and channel form. The capacity to predict these interactions is essential for a variety of river management problems, including channel migration, width adjustment and habitat development. To address this need, high-resolution numerical models increasingly are being used by river engineers, fluvi...

Understanding how hydraulic factors control alluvial river meander migration can help resource managers evaluate the long-term effects of floodplain management and bank stabilization measures. Using a numerical model based on the mechanics of flow and sediment transport in curved river channels, we predict 50 years of channel migration and suggest the planning and ecological implications of tha...

Environmental changes are impacting river systems worldwide. These arise from factors such as flood magnitude–frequency changes, direct human management interventions, inadvertent impacts on sediment supply and fluvial regimes landscape-scale in climate. Historical active metal mining is significant this regard. Here, we investigate morphodynamic within a reach of the River Ystwyth, Wales, sinc...