Experimental investigation of transients-induced fluid–structure interaction in a pipeline with multiple-axial supports

Keramat, Alireza; Fathi-Moghadam, Manoochehr; Zanganeh, Roohollah; Rahmanshahi, Mostafa; Tijsseling, Arris S.; Jabbari, Ebrahim

doi:10.1016/j.jfluidstructs.2019.102848

Cited by 53 publications

(18 citation statements)

References 37 publications

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“…To this end, the validation is carried out for two configurations of the pipeline: with and without intermediate supports. The numerical results are compared with those of Keramat et al (2012) for a viscoelastic pipe with support at the valve only (there are no intermediate supports) and with experimental data of Keramat et al (2020) for a viscoelastic pipe with intermediate and valve supports.…”

Section: Comparison With Other Fsi Results In An Intact Pipementioning

confidence: 99%

Fluid-Structure Interaction in Transient-Based Extended Defect Detection of Pipe Walls

et al. 2020

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Section: Comparison With Other Fsi Results In An Intact Pipementioning

confidence: 99%

Fluid-Structure Interaction in Transient-Based Extended Defect Detection of Pipe Walls

et al. 2020

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“…The one-dimensional continuity and momentum equations governing the transient flow in a polymer pipe are as follows (Covas et al 2005;Keramat et al 2020):…”

Section: Equations Governingmentioning

confidence: 99%

“…In this study, the set of differential equations was solved using the method of characteristics (MOC) (Keramat et al 2020).…”

Section: Equations Governingmentioning

confidence: 99%

Illegal connection detection in a viscoelastic pipeline using inverse transient analysis in the time domain

2022

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Illegal connection (IC) in water supply systems and water network wastes water as well as energy and reduces water quality, which has negative technical and economic effects on water management. Transient-based defect detection is a powerful method applied in water pipelines. This paper investigates the efficiency of the transient-based Inverse Transient Analysis (ITA) method in estimating the characteristics of ICs in the viscoelastic water supply system in the time domain. To better evaluate this method, an experimental transient model was developed using polyethylene pipelines (with a length of 158 meters and a nominal diameter of 2 inches). In the first step, the hydraulic transient solver was calibrated in the calibration approach of dynamic parameters of pressure wave speed and pipe wall viscoelasticity. Then, the sensitivity of the ITA method to the spatial step of the method of characteristics and signal sample size was assessed. Finally, the efficiency of the ITA method was evaluated for several experiments with different transient intensities and a noisy signal. The results indicated that the accuracy for locating the IC was higher than the accuracy for the IC's length.

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“…The steady discharge in the system was measured using an ultrasonic flowmeter. Multiple-axial supports were used to anchor pipes to the ground and prevent the propagation of additional pipe-wall stress waves into transient pressure waves (Keramat et al 2020). Experiments were performed with and without blockage at different steady-state flow rates of 0.86-1.5 L/s in a turbulent flow regime.…”

Section: Experimental Model Experimental Setupmentioning

confidence: 99%

Modeling of transient flows in viscoelastic pipe network with partial blockage

Chahardah-Cherik

Fathi-Moghadam

Haghighipour

2021

Journal of Water Supply: Research and Technology-Aqua

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In this study, transient flow and partial blockage in polyethylene (PE) pipe network are investigated experimentally and numerically using the method of characteristics in the time domain considering pipe-wall viscoelasticity. The experiments were conducted on a PE pipe network with and without partial blockage. The experimental pressure signals were damped during a short period of time in the blockage-free case. The numerical model was calibrated by the inverse transient analysis (ITA). The hydraulic transient solver calibrated with one Kelvin–Voigt element showed good consistency with the experimental results. Partial blockages with different lengths and sizes were examined at different locations of the pipe network. Results reveal an increase in head loss, pressure signal damping, and phase shift with increase in blockage. In addition, the location and characteristics of blockages with different sizes were determined using the ITA in the pipe network.

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Experimental investigation of transients-induced fluid–structure interaction in a pipeline with multiple-axial supports

Cited by 53 publications

References 37 publications

Fluid-Structure Interaction in Transient-Based Extended Defect Detection of Pipe Walls

Fluid-Structure Interaction in Transient-Based Extended Defect Detection of Pipe Walls

Illegal connection detection in a viscoelastic pipeline using inverse transient analysis in the time domain

Modeling of transient flows in viscoelastic pipe network with partial blockage

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