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Steady and rotating computational fluid dynamics simulations of a novel vertical axis wind turbine for small-scale power generation

McTavish, S.; Feszty, D.; Sankar, T. - In: Renewable Energy 41 (2012) C, pp. 171-179

computational fluid dynamics (CFD) software CFdesign 2010. A validation study consisting of steady and rotating simulations was … conducted using a Savonius rotor and good agreement was obtained with experimental data. Steady two-dimensional CFD simulations … three-dimensional CFD simulations were conducted at several tip speed ratios with a freestream speed of 6 m/s. The predicted …

Persistent link: https://www.econbiz.de/10011045149

Assessing the influence of inflow turbulence on noise and performance of a tidal turbine using large eddy simulations

Lloyd, Thomas P.; Turnock, Stephen R.; Humphrey, Victor F. - In: Renewable Energy 71 (2014) C, pp. 742-754

Large eddy simulations of a model scale tidal turbine encountering inflow turbulence have been performed. This has allowed both unsteady blade loading and hydrodynamic noise radiation to be predicted. The study is motivated by the need to assess environmental impact of tidal devices, in terms of...

Persistent link: https://www.econbiz.de/10010906482

Numerical simulation of a new type of cross flow tidal turbine using OpenFOAM – Part I: Calibration of energy extraction

Gebreslassie, Mulualem G.; Tabor, Gavin R.; Belmont, … - In: Renewable Energy 50 (2013) C, pp. 994-1004

This paper introduces a new CFD based Immersed Body Force (IBF) model, and examines the performance of a new type of … fluid dynamics (CFD) code OpenFOAM. The IBF model was added as a forcing function into the existing large eddy simulation …

Persistent link: https://www.econbiz.de/10010806489

Numerical simulation of a new type of cross flow tidal turbine using OpenFOAM – Part II: Investigation of turbine-to-turbine interaction

Gebreslassie, Mulualem G.; Tabor, Gavin R.; Belmont, … - In: Renewable Energy 50 (2013) C, pp. 1005-1013

influence of surrounding turbines on the performance of a base case (isolated turbine). The study was conducted using a new CFD … based, Immersed Body Force (IBF) model, which was validated in the first paper, and an open source CFD software package …

Persistent link: https://www.econbiz.de/10010804675

Simulating blade-strike on fish passing through marine hydrokinetic turbines

Romero-Gomez, Pedro; Richmond, Marshall C. - In: Renewable Energy 71 (2014) C, pp. 401-413

simulated using two modeling approaches: a novel scheme combining computational fluid dynamics (CFD) with Lagrangian particle … distribution and velocity. The proposed CFD and Lagrangian particle tracking methods provided a more realistic representation of …

Persistent link: https://www.econbiz.de/10010906480

The effect of tidal flow directionality on tidal turbine performance characteristics

Frost, C.; Morris, C.E.; Mason-Jones, A.; O'Doherty, D.M.; … - In: Renewable Energy 78 (2015) C, pp. 609-620

turbine and its support stanchion. Through the use of validated Computational Fluid Dynamics (CFD) modelling this work shows …

Persistent link: https://www.econbiz.de/10011208640

Performance study on a counter-rotating tidal current turbine by CFD and model experimentation

Lee, Nak Joong; Kim, In Chul; Kim, Chang Goo; Hyun, Beom Soo - In: Renewable Energy 79 (2015) C, pp. 122-126

and efficiency of a counter-rotating current turbine by using computational fluid dynamics (CFD) and experimental methods …

Persistent link: https://www.econbiz.de/10011208707

Investigation of the performance of a staggered configuration of tidal turbines using CFD

Gebreslassie, Mulualem G.; Tabor, Gavin R.; Belmont, … - In: Renewable Energy 80 (2015) C, pp. 690-698

staggered configuration in a tidal stream farm using the CFD based Immersed Body Force turbine modelling method. The inflow …

Persistent link: https://www.econbiz.de/10011263768

Numerical analysis and performance enhancement of a cross-flow hydro turbine

Acharya, Nirmal; Kim, Chang-Gu; Thapa, Bhola; Lee, Young-Ho - In: Renewable Energy 80 (2015) C, pp. 819-826

phase (air & water at 25 °C), steady state with SST turbulence model was selected in the commercial CFD code ANSYS CFX 13 …

Persistent link: https://www.econbiz.de/10011263799

Performance and safety of rooftop wind turbines: Use of CFD to gain insight into inflow conditions

Tabrizi, Amir Bashirzadeh; Whale, Jonathan; Lyons, Thomas; … - In: Renewable Energy 67 (2014) C, pp. 242-251

The installation of small and medium-size wind turbines on the rooftops of high buildings has been often suggested by architects and project developers as a potential solution for achieving sustainable energy in building design. In such locations, however, because of the presence of buildings...

Persistent link: https://www.econbiz.de/10010805774