| 摘要: |
| 针对一个涡轮的典型级,减少动叶片的数18只,采用参数化叶型法重新成型三维叶片的五个截面叶型,用Fluent分别对各截面进行粘性S1正问题流场分析计算,然后将5个截面沿径向以各截面的重心积迭形成三维叶栅。对新成型的叶栅和原叶栅组成的涡轮级分别进行三维粘性流动分析,表明新设计的叶栅叶片载荷增加15%,而效率基本保持不变。 |
| 关键词: 涡轮 高载荷涡轮 叶片 数值分析 |
| DOI： |
| 分类号:V232 |
| 基金项目: |
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| Design and 3-D numerical analysis of highly loaded turbine rotor blade |
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ZHOU Fan-zhen,WANG Shi-yong,DING Xiao-juan,FENG Guo-tai
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1.School of Energy Science and Engineering, Harbin Inst. of Technology, Harbin 150001, China;2.Power Equipment National Engineering Research Center, Harbin 150040, China
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| Abstract: |
| For a typical turbine stage, with a reduction of 18 for the rotor blades. Five sections of the blade were reconstructed respectively by adopting the parametric blade design method, and the computations of viscous blade-to-blade flow were also carried out respectively by FLUENT commercial software package. The blade was stacked by the center of gravity in radial direction with five sections. Three-dimensional flow analyses were carried out to compare the flow field characteristic between the new highly loaded rotor blade turbine stage and the conventional one. It is found that the blade load is increased by 15% and the stage efficiency is basically maintained. |
| Key words: Turbine Highly loading turbine Blade Numerical analysis |
