We present a novel 3D implementation of horizontal axis tidal turbine (HATT) in the shallow water hydrostatic code SHYFEM. The uniqueness this work involves blade element momentum (BEM) approach: is parameterized by applying sink terms x and y equations. In way, performance result both flow conditions turbine’s geometric characteristics. For these reasons, model suitable for farm-layout studies...

The rivers connecting oceans generally carry sediment due to water and soil losses in China. Additionally, the maximum concentration is 300 g/L, which much higher than that of other countries. It unknown whether seawater with sand particles will affect power tidal current turbine blades. therefore necessary study capture turbines water-sediment environment. In this study, blade was divided into...

Low order models based on the Blade Element Momentum (BEM) theory exhibit modeling issues in performance prediction of Vertical Axis Wind Turbines (VAWT) compared to Computational Fluid Dynamics, despite widespread engineering practice such methods. The present study shows that capability BEM codes applied VAWTs can be greatly improved by implementing a novel three-dimensional set high-order co...

Abstract. In this work, a computationally efficient engineering model for the aerodynamics of swept wind turbine blades is proposed extended blade element momentum (BEM) formulation. The modified based on coupled near- and far-wake model, in which near wake assumed to be first quarter revolution non-expanding helical own blade. For special case in-plane trailed vorticity, original empirical equ...

Abstract. A wind turbine blade equipped with root spoilers is analysed using time domain aeroelastic element momentum (BEM) simulations to assess the impact of passive devices on annual energy production (AEP) and lifetime. Previous 2D computational fluid dynamics (CFD) showed a large unsteadiness in aerodynamic coefficients associated spoiler, such behaviour captured by OpenFAST when all degre...