多跨管阵列平面内流体弹性失稳研究——第二部分：两相流试验

IF 1 4区工程技术 Q4 ENGINEERING, MECHANICAL

Journal of Pressure Vessel Technology-Transactions of the Asme Pub Date : 2022-12-13 DOI:10.1115/1.4056467

P. Feenstra, T. Sawadogo, Bruce A. W. Smith, Victor Janzen, A. McLellan, Helen Cothron, Sean Kil

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引用次数: 0

摘要

最近，在加拿大核实验室的多跨U形弯管试验台上完成了研究U形弯管阵列中流体弹性不稳定性的试验。这些试验由电力研究所赞助，旨在研究蒸汽发生器管道在两相横流中的平面内流体弹性不稳定性。加拿大原子能有限公司在以前的实验中首次观察到这种不稳定机制。直到2012年，这一机制才被认为是一个严重的实际问题，当时它对美国一座核电站新更换的蒸汽发生器的管道造成了严重损坏。在这项研究中，对空气流和两相液体/蒸汽制冷剂134a进行了测试。管束由22根柔性U型弯管组成，由可配置的扁杆装置支撑。测试的重点是支架几何形状和管与支架相互作用的影响。数据来自加速度计、位移探针、力传感器和空隙率探针的33个动态信号。这个由两部分组成的系列的第一部分介绍了空气测试的结果。第二部分介绍了使用两相氟利昂制冷剂（R-134a）作为工作流体的试验结果。

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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Investigations of In-Plane Fluidelastic Instability in a Multi-Span Tube Array – Part II: Tests in Two-Phase Flow

Tests to study Fluidelastic Instability in an array of U-bend tubes were recently completed in the Multi-Span U-Bend test rig at Canadian Nuclear Laboratories. These tests were sponsored by the Electric Power Research Institute and were designed to study In-Plane Fluid elastic instability of steam generator tubes in two-phase cross flow. This instability mechanism was first observed in previous experiments by Atomic Energy of Canada Limited. This mechanism was not thought to be a serious practical concern until 2012 when it caused severe damage to tubes in a new replacement steam generator in a nuclear power plant in the United States. In this study, tests were conducted both with flows of air and two-phase liquid/vapour Refrigerant 134a. The tube bundle consisted of 22 flexible U-bend tubes supported by a configurable flat-bar arrangement. Testing focused on the effects of support geometry and tube-to-support interaction. Data was recorded from 33 dynamic signals from accelerometers, displacement probes, force transducers, and void-fraction probes. Part I of this two-part series presented results of air tests. Part II presents results of tests using two-phase Freon refrigerant (R-134a) as the working fluid.

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来源期刊

Journal of Pressure Vessel Technology-Transactions of the Asme 工程技术-工程：机械

CiteScore

2.10

自引率

10.00%

发文量

审稿时长

4.2 months

期刊介绍： The Journal of Pressure Vessel Technology is the premier publication for the highest-quality research and interpretive reports on the design, analysis, materials, fabrication, construction, inspection, operation, and failure prevention of pressure vessels, piping, pipelines, power and heating boilers, heat exchangers, reaction vessels, pumps, valves, and other pressure and temperature-bearing components, as well as the nondestructive evaluation of critical components in mechanical engineering applications. Not only does the Journal cover all topics dealing with the design and analysis of pressure vessels, piping, and components, but it also contains discussions of their related codes and standards. Applicable pressure technology areas of interest include: Dynamic and seismic analysis; Equipment qualification; Fabrication; Welding processes and integrity; Operation of vessels and piping; Fatigue and fracture prediction; Finite and boundary element methods; Fluid-structure interaction; High pressure engineering; Elevated temperature analysis and design; Inelastic analysis; Life extension; Lifeline earthquake engineering; PVP materials and their property databases; NDE; safety and reliability; Verification and qualification of software.