混流泵瞬态启动过程中的流动和诱导噪声机理研究

IF 1.5 4区 工程技术 Q3 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
Jinsong Zhang, Xinlong Wang, Chen Yang, Mingkang Sun, Zhenwei Huang
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引用次数: 0

摘要

目的 本研究旨在探讨混流泵启动过程中的噪声诱发特性以及不同启动方案对泵噪声的影响。设计/方法/途径 本研究对不同启动方案下的混流泵进行了数值模拟,并研究了这些方案下的流动特性和噪声分布。此外,混流泵启动过程中的噪声演变特征可分为初始阶段、稳定增长阶段、脉冲阶段和稳定运行阶段。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigation on the flow and induced-noise mechanism during the transient start-up process of a mixed-flow pump

Purpose

This study aims to investigate the noise-inducing characteristics during the start-up process of a mixed-flow pump and the impact of different start-up schemes on pump noise.

Design/methodology/approach

This study conducted numerical simulations on the mixed-flow pump under different start-up schemes and investigated the flow characteristics and noise distribution under these schemes.

Findings

The results reveal that the dipole noise is mainly caused by pressure fluctuations, while the quadrupole noise is mainly generated by the generation, development and breakdown of vortices. Additionally, the noise evolution characteristics during the start-up process of the mixed-flow pump can be divided into the initial stage, stable growth stage, impulse stage and stable operation stage.

Originality/value

The findings of this study can provide a theoretical basis for the selection of start-up schemes for mixed-flow pumps, reducing flow noise and improving the operational stability of mixed-flow pumps.

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来源期刊
Engineering Computations
Engineering Computations 工程技术-工程:综合
CiteScore
3.40
自引率
6.20%
发文量
61
审稿时长
5 months
期刊介绍: The journal presents its readers with broad coverage across all branches of engineering and science of the latest development and application of new solution algorithms, innovative numerical methods and/or solution techniques directed at the utilization of computational methods in engineering analysis, engineering design and practice. For more information visit: http://www.emeraldgrouppublishing.com/ec.htm
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