Numerical Study on Air Turbines with Enhanced Techniques for OWC Wave Energy Conversion

作     者：CUI Ying HYUN Beom-Soo KIM Kilwon 

作者机构：Department of Ocean EngineeringCollege of EngineeringOcean University of China Division of Naval Architecture and Ocean EngineeringKorea Maritime and Ocean University 

出 版 物：《China Ocean Engineering》 (中国海洋工程(英文版))

年 卷 期：2017年第31卷第5期

页      面：517-527页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0908[农学-水产] 0707[理学-海洋科学] 08[工学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0824[工学-船舶与海洋工程] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：financially supported by the Collaborative Research Project under the NRF-NSFC Cooperative Program(Grant No.2013K2A2A2000529) the National Natural Science Foundation of China(Grant Nos.51279190 and 51311140259) the Shandong Natural Science Funds for Distinguished Young Scholar(Grant No.JQ201314) the Ministry of Oceans and Fisheries of Korea(Grant Nos.PMS 3400 and PMS 3600) 

主　　题：OWC impulse turbine Wells turbine CFD endplate ring quasi-steady analysis 

摘      要：In recent years,the oscillating water column(OWC) wave energy converter,which can capture wave energy from the ocean,has been widely applied all over the *** the essential part of the OWC system,the impulse and Wells turbines are capable of converting the low pressure pneumatic energy into the mechanical shaft *** an enhanced technique,the design of endplate or ring attached to the blade tip is investigated numerically in this paper.3 D numerical models based on a CFD-software FLUENT 12.0 are established and validated by the corresponding experimental results from the reports of Setoguchi et al.(2004) and Takao et al.(2001).Then the flow fields and non-dimensional evaluating coefficients are calculated and analyzed under steady *** show that the efficiency of impulse turbine with ring can reach up to 0.49 when Ф=1,which is 4% higher than that in the cases for the endplate-type and the original *** the ring-type Wells turbine with fixed guide vanes shows the best performance with the maximal efficiency of 0.55,which is 22% higher than that of the original *** addition,the quasi-steady analysis is used to calculate the mean efficiency and output-work of a wave cycle under sinusoidal flow *** all together,this study provides support for structural optimization of impulse turbine and Wells turbine in the future.