Numerical and experimental analysis of a darrieus-type cross flow water turbine in bare and shrouded configurations

Abstract

The aim of this paper is to present the results of the analysis of a Darrieus- type cross flow water turbine in bare and shrouded configurations. Numerical results are compared to experimental data and differences found in values are also highlighted. The benefit of the introduction of a channelling device, which generates an efficiency increment factor varying from 2 to 5, depending on the configuration, is discussed