CFD analysis for the performance of cross-flow hydraulic turbine with the variation of blade angle

摘要：

The purpose of this study is both to further optimize the structure of cross- ow turbine and to improve the turbine performance. Optimization of the turbine structure has been made by the analysis of the turbine performance with the variation of the blade angle using a commercial CFD code. The results show that inlet and outlet angles of the runner blade give considerable effect on the performance of the turbine. Pressure on the surface of the runner blade changes considerably with the variation of blade angle both at the stages 1 and 2 but relatively small change occurs for the uid velocity of cross- ow hydraulic turbine. Recirculating ow in the runner passage causes considerable hydraulic loss by which efficiency of the turbine decreases very much.

关键词： cross- flow hydraulic turbine blade angle performance internal flow computational fluid dynamics

作者: Y.D.Choi J..I.Lim C.G.Kim Y.T.Kim Y.H.Lee

作者单位: Industry-Academic Cooperation Foundation, Korea Maritime University, 606-791 Korea Department of Mechanical Engineering, Graduate School of Korea Maritime University, 606-971 Korea Department of Marine Engineering, Korea Maritime University, 606-791 Korea Division of Mechanical & Information Engineering, Korea Maritime University, 606-791 Korea

会议类型: 国际会议

会议名称: The Fifth International Conference on Fluid Mechanics(第五届国际流体力学会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2007-08-15（万方平台首次上网日期，不代表论文的发表时间）