浓缩风能装置流场仿真与优化设计  

FLOW FIELD SIMULATION AND OPTIMIZATION DESIGN OF CONCENTRATED WIND ENERGY DEVICE

作　　者：林俊杰 田德 邓英 

机构地区：[1]新能源电力系统国家重点实验室(华北电力大学),北京102206

出　　处：《太阳能学报》2016年第7期1891-1899,共9页Acta Energiae Solaris Sinica

基　　金：国家科技支撑计划(2009BAA22B02)

摘　　要：以浓缩风能装置为研究对象,设计8种改进模型,其中包括5种非对称模型。通过数值模拟和实验研究的方法,在具有风切变来流条件下对改进模型的内部流场特性进行仿真分析和实验验证。结果表明:改进模型Ⅷ具有较明显的聚风加速作用;非对称的浓缩风能装置结构具有较好的减轻风切变作用,其中改进模型Ⅱ的减轻风切变作用较好;综合分析聚风加速和减轻风切变效果,改进模型Ⅴ是较佳的浓缩风能装置结构。Eight improved models including five asymmetric models were designed with the concentrated wind energy device as the research object. By means of numerical simulation and experiment study, the internal flow field characteristics of improved models in shear were simulated, analyzed and verified. The results showed that the improved model Ⅷ has better efficiency of acceleration and asymmetric models have better effects on reducing the wind shear, of which the improved model Ⅱ has much better effects. When the efficiency of acceleration and reducing the wind shear are considered together, the improved model Ⅴ is the optimal structure of concentrated wind energy device.

关 键 词：风电机组 浓缩风能装置 流场 数值模拟 风切变 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]