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Computational Fluid Dynamics Based Optimal Design of Vertical Axis Marine Current Turbines

Asim, Taimoor, Mishra, Rakesh, Ubbi, Kuldip and Zala, Karina (2013) Computational Fluid Dynamics Based Optimal Design of Vertical Axis Marine Current Turbines. Procedia CIRP: TESC 2013 - 2nd International Through-life Engineering Services Conference, 11. pp. 323-327. ISSN 2212 - 8271

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Marine turbines are being increasingly used to harness kinetic energy of water and convert it into other useful forms of energy. Widespread commercial acceptability of these machines depends upon their efficiency. This largely depends upon the geometric features of the marine turbines such as number of blades, shape of blades etc. Researchers have been using experimental facilities to optimise these machines for maximum power generation. With the advent of advanced computational techniques, it has now
become possible to numerically simulate the flow of water in the vicinity of marine turbines and monitor their performance output. In this work Computational Fluid Dynamics (CFD) based techniques have been used to analyse the effects of number of blades within the stator and rotor, of an in-house built Vertical Axis Marine Current Turbine (VAMCT), on the performance output of the turbine. Furthermore, an effort has been put forward towards better understanding of the flow structure in the vicinity of the blades during transient interaction between rotor and stator blades. This study provides vital information with
regards to the flow sensors’ requirements and placements in order to monitor various blade configurations of a VAMCT in real world. The results of this study show that the torque output from a VAMCT is a strong function of blade configurations and there is a significant degradation in the performance output of marine turbines as the inequality between the number of rotor and stator blades increases. Hence, CFD has the potential to optimise the design of marine turbines and can be used as a potential modelling
tool in the near future for on-line health monitoring of such systems.

Item Type: Article
Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Procedia CIRP. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication.
Subjects: T Technology > TJ Mechanical engineering and machinery
Schools: School of Computing and Engineering
School of Computing and Engineering > Diagnostic Engineering Research Centre > Energy, Emissions and the Environment Research Group
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Depositing User: Taimoor Asim
Date Deposited: 08 Aug 2013 09:25
Last Modified: 28 Aug 2021 19:49


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