ABSTRACT
The numerical model of the machine generated using computational fluid dynamics software was validated with experimental data from the HYLOW project, confirming the capability of predicting performances of hydropower machines by numerical simulation. The HYLOW project consortium consisted of several project partners each of whom addressed specific topics which covered various issues connected to very low head hydropower and its influence on the environment. The free stream energy converter developed by the HYLOW partner University of Rostock, consisted of the design and construction of a large-scale model of the energy converter. Various aspects of the HYLOW hydropower converters were considered with respect to the directive. The energy converters developed in the HYLOW project allow for river continuity. The low speeds reduce the potential damage to fish which can pass through the machine. The use of conventional turbines increases the risk of fish mortality and hinders sediment transport, adding a further negative impact on the environment.
