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Low-speed Static Experimental Verification on High-loading Turbine Rotor Design Idea
Author(s): SHI Yu-wen, GU Zhong-hua, HAN Wan-long, HAN Wan-jin
Pages: 100-
104
Year: 2013
Issue:
2
Journal: Turbine Technology
Keyword: 大焓降动叶; 前加载; 后加载; 鱼头型前缘;
Abstract: 在哈工大推进理论与技术研究所的静态低速风洞上,采用扇形叶栅试验模型,验证了应用于高中压缸的大焓降动叶的设计思想.试验结果表明,伴随几何折转角的增加,从叶根至叶顶采用由后加载向前加载逐渐过渡的具有“鱼头”型前缘的叶型,提高了动叶对气流冲角和沿叶高负荷变化的适应性,降低了轮毂区的横向二次流损失.大焓降动叶和传统设计动叶相比,前者的几何折转角高于后者,但在相同的实验条件下两者的气动性能相当.
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