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Jayashankar, V., Anand, S., Geetha, T., Santhakumar, S., Kumar, V.J., Ravindran, M., Setoguchi, T., Takao, M., Toyota, K. and Nagata, S. (2009) A Twin Unidirectional Impulse Turbine Topology for OWC Based Wave Energy Plants. Renewable Energy, 34, 692-698.
https://doi.org/10.1016/j.renene.2008.05.028

has been cited by the following article:

• TITLE: A Study on Fluidic Diode for Wave Energy Conversion-Effect of Bypass Geometry on the Turbine Performance

  AUTHORS: Keito Matsumoto, Manabu Takao, Shinya Okuhara, Miah Md. Ashraful Alam, Yoichi Kinoue

  KEYWORDS: Fluidic Diode, Wave Energy Conversion, Twin-Impulse Turbine, CFD Analysis

  JOURNAL NAME: Open Journal of Fluid Dynamics, Vol.10 No.3, September 24, 2020

  ABSTRACT: A twin-impulse turbine for bi-directional flow has been developed for wave energy converter. However, the previous studies elucidated that the mean efficiency of the twin turbine is much lower than that of the impulse turbine for a unidirectional flow because a portion of airflow passes through the reverse flow turbine whose efficiency is very low. Therefore, a fluidic diode was adopted in the twin-impulse turbine in order to reduce the air flow through the reverse flow turbine. In this study, the rectification effect of the fluidic diode was investigated where a bypass is introduced into a blunt body. A computational fluid dynamics (CFD) analysis was conducted to investigate the effect of fluidic diodes on the turbine performance. In this analysis, RANS equations were used as the governing equations and the standard k-ε model was used as the turbulence model. The computational domain is composed of a circular tube and fluidic diode, and the domain meshed with an approximately 1.5 million mesh elements. As a result, it was found that the rectification effect of the fluidic diode is enhanced by installing a blunt body with a bypass hole of 5° taper angle.