A twin impulse turbine for wave energy conversion - The performance under unsteady airflow

被引：0

作者：

Ashraful Alam M.M. ^{[1
]}

Sato H. ^{[2
]}

Takao M. ^{[1
]}

Okuhara S. ^{[3
]}

Setoguchi T. ^{[4
]}

机构：

[1] Department of Mechanical Engineering, National Institute of Technology, Matsue College, 14-4 Nishiikuma-cho, Matsue

[2] Advanced Engineering Faculty, National Institute of Technology, Matsue College, 14-4 Nishiikuma-cho, Matsue

[3] Support Center for Practical Education, National Institute of Technology, Matsue College, 14-4 Nishiikuma-cho, Matsue

[4] Institute of Ocean Energy, Saga University, 1 Honjo-machi, Saga

来源：

International Journal of Fluid Machinery and Systems | 2016年 / 9卷 / 04期

基金：

日本学术振兴会;

关键词：

CFD; Fluid machinery; Oscillating water column; Twin-impulse turbine; Wave energy conversion;

D O I：

10.5293/IJFMS.2016.9.4.300

中图分类号：

学科分类号：

摘要：

A twin unidirectional impulse turbine for wave energy conversion has been suggested in our previous study, and the performance under unsteady flow has been investigated by quasi-steady analysis. In the present study, the performance of twin impulse turbine under unsteady flow condition has been investigated by unsteady analysis of Computational fluid dynamics. As a result, the mean efficiency of twin unidirectional impulse turbine under unsteady flow is lower than the maximum efficiency of unidirectional impulse turbine. Moreover, it is verified that airflow goes backward in the reverse turbine in low flow rates. © 2016 Turbomachinery Society of Japan. All rights reserved.

引用

页码：300 / 306

页数：6

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