双转子对旋风轮设计及三维数值验证  

Design of A Counter-rotating Wind Turbine and Validation with 3-D Numerical Simulation

作　　者：王掩刚[1] 赵龙波[1] 国睿[1] 任思源[1] 

机构地区：[1]西北工业大学,陕西西安710072

出　　处：《流体机械》2011年第7期17-21,共5页Fluid Machinery

基　　金：陕西省自然科学基金项目(2011JQ7019);西北工业大学创新基金(2008KJ01004)

摘　　要：详细分析了Betz理论和Schm itz理论的优势和不足,给出了对旋式水平轴风力机设计流程,设计了小型双转子对旋式风力机,结合三维数值分析手段对所设计的风力机进行了设计工况的流动分析,研究结果表明:(1)Schm itz理论相对合理,但仍然存在缺陷,依据该理论所计算的翼型根部安装角过大;(2)双转子对旋式风力机在工程上是可实现的,本文所设计的风力机基本达到设计目标,下游风轮输出功率大于上游风轮;(3)设计工况下所设计的双转子对旋风力机两排叶片吸力面没有出现分离,压力梯度控制合理,均工作于比较理想的气动状态下。On the basis of investigating the advantages and disadvantages of Betz and Schmitz theory,the procedure of a new wind machine which is a horizontal axial counter-rotating wind turbine has been shown.A mini-type counter-rotating wind turbine has been designed successfully by this method.The performance and detailed flow structure of the designed machine has been obtained by three dimensional numerical simulation.The results show that：（1）Compared with the Betz theory,Schmitz theory is reasonable which could be used in the design process of counter-rotating wind turbine.However there are some faults of Schmitz theory because the setting angle near the hub section of wind rotor is larger when Schmitz theory is used.（2）Counter-rotating wind turbine could be attainable in engineering.The designed wind turbine in this paper achieved the aim and the power of downstream rotor is greater than the upstream rotor＇s.（3）There is no separation on the suction side when the counter-rotating wind turbine is working under the designed condition,the pressure gradient is reasonable.

关 键 词：对旋风力机 Schmitz理论 设计流程 数值模拟 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]