高通流量叶片旋流畸变发生器:设计与分析

IF 1.4 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Andrew Hayden, John Gillespie, Cole Hefner, Alexandrina Untaroiu, K. Todd Lowe
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引用次数: 0

摘要

近年来,StreamVane技术已经发展成为一种成熟的流线型工艺,可以再现涡流畸变,用于风机和压缩机性能和耐久性的地面试验评估。StreamVane装置由复杂的旋转叶片组成,在下游指定的距离精确输出扭曲的二次速度场。为了进一步推进这些装置的应用和运行条件,研究人员开发并完成了提高临界马赫数的方法。这项工作分为三个阶段:1)执行高保真计算流体动力学(CFD),以确定双旋流和四旋流叶片组设计中的峰值马赫数位置;2)对相关高通流量技术进行深入的文献综述;3)使用相同的高保真CFD方法设计和实施选定的技术来评估改进。据预测,在高速叶片连接处采用叶片倾斜可使临界马赫数提高6.6%,而叶片掠型可使临界马赫数提高3.5%。这一努力的结果和结论贯穿全文,主要集中在比较采用和不采用高通流设计的叶片包之间的马赫数和旋流分布。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High Throughflow Streamvane Swirl Distortion Generators: Design and Analysis
Abstract In recent years, the StreamVane technology has developed into a mature and streamlined process that can reproduce swirl distortion for ground-test evaluation of fan and compressor performance and durability. A StreamVane device consists of complex turning vanes that accurately output a distorted secondary velocity field at a defined distance downstream. To further advance the applications and conditions in which these devices operate, a research effort was developed and completed to investigate methods to increase critical Mach numbers. The effort was split into three separate stages: 1) Perform high fidelity computational fluid dynamics (CFD) to identify peak Mach number locations within twin and quad swirl vane pack designs; 2) Conduct thorough literature reviews on relevant high throughflow techniques; 3) Design and implement selected techniques to evaluate improvements using the same high-fidelity CFD methods. It was predicted that employing blade lean within high-speed vane junctions increased critical Mach numbers by 6.6%, while blade sweep resulted in a 3.5% increase. The results and conclusions from this effort are presented throughout this paper with a primary focus on comparing Mach numbers and swirl profiles between vane packs with and without high throughflow designs.
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来源期刊
CiteScore
3.80
自引率
20.00%
发文量
292
审稿时长
2.0 months
期刊介绍: The ASME Journal of Engineering for Gas Turbines and Power publishes archival-quality papers in the areas of gas and steam turbine technology, nuclear engineering, internal combustion engines, and fossil power generation. It covers a broad spectrum of practical topics of interest to industry. Subject areas covered include: thermodynamics; fluid mechanics; heat transfer; and modeling; propulsion and power generation components and systems; combustion, fuels, and emissions; nuclear reactor systems and components; thermal hydraulics; heat exchangers; nuclear fuel technology and waste management; I. C. engines for marine, rail, and power generation; steam and hydro power generation; advanced cycles for fossil energy generation; pollution control and environmental effects.
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