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中国电机工程学报 2006, 26(4) 88-92 DOI:
ISSN: 0258-8013 CN: 11-2107/TM |
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叶轮机械全三维粘性气动优化设计系统 |
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高学林 袁新 |
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清华大学热科学与动力工程教育部重点实验室 清华大学热科学与动力工程教育部重点实验室 |
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摘要：
该文采用商用优化软件iSIGHT作为平台，集成叶轮机械造型、流场评价和优化策略，形成了一套叶轮机械气动优化设计系统，并分别用于透平高压级静叶和多级压气机整机叶片的气动优化设计。原有的计算流体力学（CFD）评价系统包括一套自主开发的高精度、鲁棒性的三维粘性求解器和网格生成软件。为扩大系统的适用性，在该文中尝试将iSIGHT与商业流体计算软件NUMECA集成在一起进行叶轮机械的气动优化设计。在优化过程中，采用粗网格方法加速正问题求解过程，并在优化结束后用细网格进行校核。计算表明这套方法能有效地提高优化速度并保证优化结果的可信性。经优化后，透平高压级静叶的总压损失系数减少0.95%；多级压气机整机效率提高2.1%。结果显示该系统能有效地改进叶轮机械的气动性能。 |
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关键词：
叶轮机械
iSIGHT
优化
压气机
透平
NUMECA
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Full 3-D Viscous Aerodynamic Optimization Design System for Turbomachinery |
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GAO Xue-lin YUAN Xin |
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Abstract:
An aerodynamic optimization system was established based on iSIGHT, integrating the turbomachinery modeling system, evaluating system and optimzation strategy. In the given instances, the optimation system was used for a turbine vane and the overall blades of a multistage comprossor to improve their aerodynamic performance. CFD (Computational Fluid Dynamics) calculation is a main tool for evaluating, including a set of in-house robust and high-accurate numerical code and mesh generator. To enhance its adaptability, a commecial software, NUMECA, was integrated with iSIGHT. We used coarse mesh during optimization, and fine mesh for final check. This method is effective to speed up the opimization progress and ensure the credibility of the optimization result. After optimization, the total pressure loss of the turbine vane was reduced by 0.95%, and the efficiency of the overall compressor was increased by 2.1%. It shows that the above system is very effective to optimize the turbomachiery aerodynamic performance. |
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Keywords:
Turbomachinery
iSIGHT
Optimization
Compressor
Turbine
NUMECA
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收稿日期 2005-03-17 修回日期 1900-01-01 网络版发布日期 |
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DOI: |
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基金项目:
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通讯作者: 高学林 |
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作者简介: |
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作者Email: gxlin@xinhuanet.com |
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| Copyright by 中国电机工程学报 |
