水锤解析建模研究进展

IF 1.8 3区工程技术 Q3 ENGINEERING, MECHANICAL

Journal of Fluids Engineering-Transactions of the Asme Pub Date : 2023-04-26 DOI:10.1115/1.4062290

Kamil Urbanowicz, Haixiao Jing, Anton Bergant, Michal Stosiak, Marek Lubecki

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引用次数: 2

摘要

摘要基于无因次时间、水锤数等参数，将水平管道层流水锤解析公式推广并简化为紧凑的数学形式。紊流水锤解析解的详细处理超出了本文的讨论范围。在Muto和Takahashi解中，提出了新的流动速度和壁面剪切应力的拉普拉斯和时域公式。对统一解析解与数值解以及实测结果进行了一系列对比研究。研究表明，考虑水力阻力频率依赖特性的模型与实验结果在很大的水锤数Wh范围内非常吻合，特别是当Wh≤0.1时。

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Progress in Analytical Modeling of Water Hammer

Abstract Analytical formulas for laminar water hammer in horizontal pipes were extended and simplified into a compact mathematical form based on dimensionless parameters: dimensionless time, water hammer number, etc. Detailed treatment of turbulent water hammer analytical solutions is beyond the scope of this paper. In the Muto and Takahashi solution, novel Laplace and time domain formulas for flow velocity and wall shear stress were developed. A series of comparative studies of unified analytical solutions with numerical solutions and the results of measurements were carried out. The study shows that models that account for the frequency-dependent nature of hydraulic resistance agree very well with experimental results over a wide range of water hammer numbers Wh, particularly when Wh ≤ 0.1.

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来源期刊

Journal of Fluids Engineering-Transactions of the Asme 工程技术-工程：机械

CiteScore

4.60

自引率

10.00%

发文量

165

审稿时长

5.0 months

期刊介绍： Multiphase flows; Pumps; Aerodynamics; Boundary layers; Bubbly flows; Cavitation; Compressible flows; Convective heat/mass transfer as it is affected by fluid flow; Duct and pipe flows; Free shear layers; Flows in biological systems; Fluid-structure interaction; Fluid transients and wave motion; Jets; Naval hydrodynamics; Sprays; Stability and transition; Turbulence wakes microfluidics and other fundamental/applied fluid mechanical phenomena and processes