某跨音速气冷涡轮三维气动优化设计研究  

3-D Aerodynamic Optimization Design of Air-cooled Turbine with Transonic Blade

作　　者：唐晓雷[1] 罗磊[1] 温风波[1] 周逊[1] 王松涛[1] 

机构地区：[1]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《汽轮机技术》2016年第6期405-409,共5页Turbine Technology

基　　金：国家自然科学基金委青年科学基金(51206034)

摘　　要：为了提高跨音速气冷涡轮的效率,减小涡轮内的二次流损失,基于弯叶片设计方法,编制了弯叶片生成程序,同时借助优化设计方法,对某高压涡轮进行了气动优化设计。优化过程中,在导叶中应用弯叶片技术,同时优化动叶进出口气流角,以适应动静叶间匹配的变化。优化结果显示,在流量及功率变化不大的前提下,级效率较原型提高0.3%。效率提高的主要原因是优化后导叶中横向二次流损失减小。To improve the efficiency of air-cooled transonic turbine stage, and reducing the secondary flow loss in theturbine, a curved blade shape generating program was made based on the optimizing methods of blade curving. Anoptimization platform was also established to optimize a high pressure air-cooled transonic turbine stage. To improvematching condition of the blade and vane, by the using of the curved blade in the stationary blade, the inlet and outlet flowangle of the rotating blade was also optimized in the same time. The results show that the stage efficiency is increased by0.3% with only little change in the mass flow rate and power. The decrease of the transverse secondary flow loss in turbinevane is the main factor to increase the efficiency.

关 键 词：涡轮 叶型优化 跨音速 冷气掺混 弯曲叶片 

分 类 号：TK478.8[动力工程及工程热物理—动力机械及工程]