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Plate Shape Effect on the Performance of the Vertical Axis Auto Rotation Current Turbine (VAACT)

Lookup NU author(s): Dr Ali BakhshandehrostamiORCiD


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The present paper explores experimentally the performance of two types of hinged plates which rotate about vertical axis when submitted to uniform current. A flat plate configuration and also a flapped plate (say, S shape) configuration have been investigated. The Vertical axis Auto rotation Current Turbine (VAACT) is one degree of freedom system (free to rotate in yaw direction). It is shown that a high efficiency for S shape type can be obtained of the order of 30 percent while flat blade type reaches approximately to 7 percent. Upper limit of tip speed ratio for flat blade type has been expanded approximately 0.9 whereas S shape approaches 1.3.

Publication metadata

Author(s): Bakhshandehrostami A, Fernandes AC

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 33th International Conference on Ocean, Offshore and Arctic Engineering (OMAE2014)

Year of Conference: 2014

Online publication date: 01/10/2014

Acceptance date: 01/02/2014

Date deposited: 12/07/2018

Publisher: American Society of Mechanical Engineers (ASME)


DOI: 10.1115/OMAE2014-23679

Library holdings: Search Newcastle University Library for this item

ISBN: 9780791845530