| 300MW汽轮机低压缸末二级三维流场数值模拟 |
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| 引用本文： | 强彦.300MW汽轮机低压缸末二级三维流场数值模拟[J].甘肃科学学报,2009,21(4):100-103. |
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| 作者姓名： | 强彦 |
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| 作者单位： | 兰州理工大学,能源与动力工程学院,甘肃,兰州,730050 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 采用商用计算流体动力学软件,对汽轮机低压缸末二级流场进行了全三维粘性数值模拟.计算结果表明,动静叶间的级间配合不尽合理,且末级根部反动度偏大,引起了较大的激波损失.通过优化设计最终使得二级总效率提高了0.3%.
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| 关 键 词： | 能源与动力工程 汽轮机 激波损失 数值模拟 |
Numerical Simulation of Flow Filed in Low Pressure Cylinder of 300MW Steam Turbine |
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| QIANG Yan.Numerical Simulation of Flow Filed in Low Pressure Cylinder of 300MW Steam Turbine[J].Journal of Gansu Sciences,2009,21(4):100-103. |
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| Authors: | QIANG Yan |
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| Institution: | QIANG Yan(School of Energy and Power Engineering,Lanzhou University of Science and Technology,Lanzhou 730050,China) |
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| Abstract: | The flow in last two stages of low pressure cylinder of steam turbine has been studied by the three-dimensional viscous numerical simulation method with commercial software.The results show that the inter-stage matching of both the stages is quite inappropriate,and the large reaction at the blade root of last stage results in a high shock wave loss.The total efficiency of the two stages has been improved by 0.3% by optimizing. |
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| Keywords: | energy and power engineering steam turbine shock wave loss numerical simulation |
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