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A study on the optimal shape of wave energy conversion system using an oscillating water column
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Journal Article
A study on the optimal shape of wave energy conversion system using an oscillating water column
2013
Overview
An Oscillating Water Column (OWC) uses air flow induced by the vertical motion of water column in the air chamber as a driving force of turbine. Although it is well known that OWC is one of the most efficient devices to harness wave power, there is still much uncertainty about the relationship between the optimal shape and its hydrodynamic performance under the confined wave conditions. In this study, we propose a new computational fluid dynamics solver using on the immiscible two-phase (gas and water) flow model to simulate an OWC system in a two and three dimensional numerical wave tank. The numerical experiments focus on air flow velocity directly related to the working of turbine to survey the optimal shape. As a result, in case the non-dimensional chamber width normalized by the incident wave length is in the range of 0.12 to 0.43, the maximum air flow velocity occurs with the increase of the inlet height and shortness of the inlet length.
Publisher
Allen Press Inc
Subject
