| 端壁边界层抽吸技术在汽轮机调节级静叶栅中的应用 |
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| 引用本文： | 郭绪垚,俞茂铮,毛靖儒.端壁边界层抽吸技术在汽轮机调节级静叶栅中的应用[J].工程热物理学报,2000,21(3):298-301. |
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| 作者姓名： | 郭绪垚 俞茂铮 毛靖儒 |
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| 作者单位： | 西安交通大学热力叶轮机械研究所,陕西,西安,710049 |
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| 基金项目： | 国家自然科学基金!59676039 |
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| 摘 要： | 提出一种在调节级静叶栅叶片吸力面侧端壁处抽吸低能流体至轴封漏汽腔室，以降低静叶栅二次流损失的方法。采用三维稳态时均Ｎ－Ｓ方程组的有限容积差分法数值求解技术，对不考虑栅后漏汽工况、存在吸力面侧端壁抽吸工况及存在栅后蒸汽泄漏工况下的二次流的发展进行了模拟。计算结果表明，所提出的方法可以有效地提高静叶栅效率。
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| 关 键 词： | 调节级 二次流 边界层抽吸 |
| 文章编号： | 0253-231X(2000)03-0298-04 |
| 修稿时间： | 1999-05-17 |
APPLICATION OF ENDWALL BOUNDARY LAYER SUCTION IN THE STATOR CASCADE OF STEAM TURBINE GOVERNING STAGE |
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| GUO Xuyao,YU Maozheng,MAO Jingru.APPLICATION OF ENDWALL BOUNDARY LAYER SUCTION IN THE STATOR CASCADE OF STEAM TURBINE GOVERNING STAGE[J].Journal of Engineering Thermophysics,2000,21(3):298-301. |
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| Authors: | GUO Xuyao YU Maozheng MAO Jingru |
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| Institution: | GUO Xuyao ,YU Maozheng ,MAO Jingru
(Institute of Thermal Turbomachinery, Xi'an Jiaotong University, Xi'an 710049, China) |
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| Abstract: | A new measure to reduce the secondary flow loss of the stator cascade of steam turbine governing stage by means of the boundary layer suction near the suction side of endwall is presented. By using the finite-volume difference method for numerical solving of the steady three-dimensional time-averaged Navier-Stokes equations, the secondary flow fields either with endwall suction or with gland leakage behind cascade are investigated. The calculated results show that the cascade efficiency can be effectively improved with the proposed measure. |
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| Keywords: | governing stage secondary flow boundary layer suction |
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