Effects of valve opening on direct water hammer pressure characteristics in PMMA pipelines

Zhang, Xiaoying; Bian, Shuwang; Wang, Hui; Jia, Xuanwen; Wang, Chuan

doi:10.1007/s40430-023-04326-3

Cited by 3 publications

(1 citation statement)

References 33 publications

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“…The flow rate of hydraulic oil in the pipeline will change suddenly, converting liquid power energy into pressure energy in a very short period and generating water hammer waves in the pipeline. The transmission velocity of the water hammer wave is [23][24][25]:…”

Section: Empirical Formula For Calculating Water Hammer Wave Pressure...mentioning

confidence: 99%

Analysis of Water Hammer and Pipeline Vibration Characteristics of Submarine Local Hydraulic System

Quan,

Gao,

Guo

et al. 2023

JMSE

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The hydraulic pipeline vibration noise is one of the main noise sources in submarine stealth conditions. Taking the local hydraulic system of a certain type of submarine as the research object, a model is first developed to simulate water hammer pressures and to study the influence of component parameters on the generation and transmission of water hammers. Then, using the maximum water hammer as the excitation, fluid–structure interaction (FSI) vibration characteristics analysis of the pipeline is carried out. Additionally, the simulation method of clamp bolt pre-tightening is discussed. Finally, the modal test of various specifications of the pipeline is carried out. The results show that the error between the simulation and the test results is within 10%, which verifies the correctness of the model settings. On this basis, with the position of the clamp as the independent variable and the maximum stress of pipelines as the dependent variable, the optimization of pipeline passive vibration control is carried out by genetic algorithm, and the finite element verification shows that the pipeline vibration stress is effectively reduced.

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Section: Empirical Formula For Calculating Water Hammer Wave Pressure...mentioning

confidence: 99%

Analysis of Water Hammer and Pipeline Vibration Characteristics of Submarine Local Hydraulic System

Quan,

Gao,

Guo

et al. 2023

JMSE

View full text Add to dashboard Cite

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Experimental study on the effects of two-stage valve closure on the maximum water hammer pressure in micro-hydroelectric system

Xin,

Du,

Liu

et al. 2024

Journal of Water Process Engineering

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The Water Hammer Characteristics of Long-Distance Water Pipelines under Different Water Supply Modes

Wang,

Ran

et al. 2024

Water

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The pressure characteristics of long-distance water pipelines during hydraulic transient processes are crucial for ensuring the safe, stable, and long-term operation of water transfer projects. This paper establishes a one-dimensional mathematical model based on sections of the Yinjiangjihuai long-distance water diversion project in China. The water supply requirements of the pipelines are categorized into two replenishment modes as follows: gravity supply and pump-pressurized water supply. The opening and closing strategies of the water pipelines under different flow conditions are simulated and analyzed to explore the hydraulic transient processes under various water supply modes. The transient variations of key hydraulic parameters during valve closure are clarified. Simulation results indicate that the water pipeline design is reasonable, meeting the water supply demands at relatively low Manning values and that it has the capability for long-term supply. Due to the excessive head provided by the pumps, pump-pressurized water supply and gravity supply modes cannot operate simultaneously. Under gravity supply mode, the minimum pressure in the downstream pipeline is relatively higher overall, while the maximum pressure in the upstream pipeline is relatively lower overall. In the pump-pressurized water supply mode, the safety and stability of the water supply can be ensured by adjusting the closing time of individual pumps and the interval time between adjacent pumps. The research findings provide technical guidance and scientific basis for the construction of national water networks and water transfer projects.

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Effects of valve opening on direct water hammer pressure characteristics in PMMA pipelines

Cited by 3 publications

References 33 publications

Analysis of Water Hammer and Pipeline Vibration Characteristics of Submarine Local Hydraulic System

Analysis of Water Hammer and Pipeline Vibration Characteristics of Submarine Local Hydraulic System

Experimental study on the effects of two-stage valve closure on the maximum water hammer pressure in micro-hydroelectric system

The Water Hammer Characteristics of Long-Distance Water Pipelines under Different Water Supply Modes

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