Effect of Guide Vane on the Performance of Impulse Turbine for Wave Energy Conversion

J. Ocean Eng. Technol. 2004;18(6):1-7.

HYUN BEOM-SOO;MOON JAE-SEUNG;HONG SEOK-WON;

Division of Ocean Systems Engineering, Korea Maritime University;Division of Ocean Systems Engineering, Korea Maritime University;Korea Research Institute of Ships and Ocean Engineering, KORDI;

Keywords: Wave Energy, Impulse Turbine, CFD, Guide Vane, 2-D and 3-D Methods

Abstract

This paper deals with the performance analysis of the impulse turbine for a owe type wave energy conversion device. Numerical analysis was performed using the commercially-available software FLUENT. This parametric study includes variation of the setting angle of the guide vane. Since parametric study at various flow coefficients requires a tremendous amount of computing time, two-dimensional cascade flow approximation was employed to determine the optimum principal particulars in a rather simple manner. A Full three-dimensional calculation was also performed for several cases to confirm the validity of the two-dimensional approach.
Results
were compared to other experimental data, such as Setoguchi et al. (2001)'s extensive set of data, and found that the usefulness of 2-D analysis was well demonstrated. The advantages of each method were also evaluated.