TURBO-22-1024: Methodology and validation of Surge Modelling in a Three-Shaft Compression System

IF 1.9 3区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Turbomachinery-Transactions of the Asme Pub Date : 2023-10-19 DOI:10.1115/1.4063506

Fanzhou Zhao, Jose Moreno, John Dodds, Mehdi Vahdati

引用次数: 0

Abstract

Abstract In this paper an efficient numerical strategy for computational fluid dynamics (CFD) simulation of surge events in a three-shaft engine compression system is presented. Numerical results are compared against measured data and the sources of discrepancies and uncertainties are addressed. It is discovered that the engine bleed system has a major impact in reducing the aerodynamic loading during surge in the core system. To the best knowledge of the authors, this is the first time that such a complex CFD computation is attempted and compared against real engine measured data and will provide valuable information to other CFD users as well as gas turbine manufacturers.

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TURBO-22-1024:三轴压缩系统中喘振建模的方法和验证

摘要本文提出了一种用于三轴发动机压缩系统喘振事件计算流体动力学(CFD)模拟的有效数值策略。数值结果与实测数据进行了比较，并讨论了差异和不确定性的来源。研究发现，发动机排气系统对降低核心系统喘振时的气动载荷有重要作用。据作者所知，这是第一次尝试如此复杂的CFD计算，并将其与真实发动机测量数据进行比较，将为其他CFD用户以及燃气轮机制造商提供有价值的信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Turbomachinery-Transactions of the Asme 工程技术-工程：机械

CiteScore

4.70

自引率

11.80%

发文量

168

审稿时长

9 months

期刊介绍： The Journal of Turbomachinery publishes archival-quality, peer-reviewed technical papers that advance the state-of-the-art of turbomachinery technology related to gas turbine engines. The broad scope of the subject matter includes the fluid dynamics, heat transfer, and aeromechanics technology associated with the design, analysis, modeling, testing, and performance of turbomachinery. Emphasis is placed on gas-path technologies associated with axial compressors, centrifugal compressors, and turbines. Topics: Aerodynamic design, analysis, and test of compressor and turbine blading; Compressor stall, surge, and operability issues; Heat transfer phenomena and film cooling design, analysis, and testing in turbines; Aeromechanical instabilities; Computational fluid dynamics (CFD) applied to turbomachinery, boundary layer development, measurement techniques, and cavity and leaking flows.