Systematic Evaluation of One-Dimensional Unsteady Friction Models in Simple Pipelines

Vítkovský, John P.; Bergant, Anton; Simpson, Angus R.; Lambert, Martin F.

doi:10.1061/(asce)0733-9429(2006)132:7(696)

Cited by 119 publications

(43 citation statements)

References 20 publications

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“…Furthermore, the frictional force model with the steady and frequency-dependent unsteady items were constructed in the proposed dynamic model. By referring to experimental results in [35,37], the simulation results of two computation methods were verified to indicate that the proposed FDM for transient pressure estimation has the following two advantages:…”

Section: Discussionmentioning

confidence: 99%

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Pressure Transient Model of Water-Hydraulic Pipelines with Cavitation

Jiang¹,

Ren²,

Zhao³

et al. 2018

Applied Sciences

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Transient pressure investigation of water-hydraulic pipelines is a challenge in the fluid transmission field, since the flow continuity equation and momentum equation are partial differential, and the vaporous cavitation has high dynamics; the frictional force caused by fluid viscosity is especially uncertain. In this study, due to the different transient pressure dynamics in upstream and downstream pipelines, the finite difference method (FDM) is adopted to handle pressure transients with and without cavitation, as well as steady friction and frequency-dependent unsteady friction. Different from the traditional method of characteristics (MOC), the FDM is advantageous in terms of the simple and convenient computation. Furthermore, the mechanism of cavitation growth and collapse are captured both upstream and downstream of the water-hydraulic pipeline, i.e., the cavitation start time, the end time, the duration, the maximum volume, and the corresponding time points. By referring to the experimental results of two previous works, the comparative simulation results of two computation methods are verified in experimental water-hydraulic pipelines, which indicates that the finite difference method shows better data consistency than the MOC.

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Section: Discussionmentioning

confidence: 99%

“…The experimental results of the transient pressure pulsations close to the valve in the horizontal downstream pipeline are given by Vitkovsky et al [35] and the related parameters of the tested pipeline are listed in Table 2. Here, the element number n is selected as 30 in the simulation.…”

Section: Case 1: Pressure Transients Without Cavitation On the Downstmentioning

confidence: 99%

Pressure Transient Model of Water-Hydraulic Pipelines with Cavitation

Jiang¹,

Ren²,

Zhao³

et al. 2018

Applied Sciences

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show abstract

“…Many approaches have been presented for unsteady friction modeling, such as weighting function-based model [39,40] and the instantaneous acceleration-based model [41,42]. Since this work is not experimentally oriented, the friction factor is considered to be steady.…”

Section: Hydraulic Transient Modelmentioning

confidence: 99%

A Hybrid Heuristic Optimization Approach for Leak Detection in Pipe Networks Using Ordinal Optimization Approach and the Symbiotic Organism Search

Lin

2017

Water

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The OOA is applied to sift through the candidate pipes and the initial organisms with leak information. The SOS is employed to determine the leaks by minimizing the sum of differences between simulated and computed head at the observation points. Two synthetic leaking scenarios, a simple pipe network and a water distribution network (WDN), are chosen to test the performance of leak detection ordinal symbiotic organism search (LDOSOS). Leak information can be accurately identified by the proposed approach for both of the scenarios. The presented technique makes a remarkable contribution to the success of leak detection in the pipe networks.

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“…A popular way of incorporating unsteady friction is to use the relation described in Vítkovskỳ et al [2006] (originally due to Brunone et al [1995])…”

Section: Frequency-dependent Frictionmentioning

confidence: 99%

A distributed parameter systems view of control problems in drilling

Meglio

Aarsnes

2015

IFAC-PapersOnLine

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We give a detailed view of estimation and control problems raised by the drilling process where the distributed nature of the system cannot be ignored. In particular, we focus on the transport phenomena in Managed Pressure Drilling (MPD) and UnderBalanced Operations (UBO), as well as the time-delay mechanisms of the mechanical stick-slip vibrations. These industrial challenges raise increasingly difficult control questions for hyperbolic systems.

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Systematic Evaluation of One-Dimensional Unsteady Friction Models in Simple Pipelines

Cited by 119 publications

References 20 publications

Pressure Transient Model of Water-Hydraulic Pipelines with Cavitation

Pressure Transient Model of Water-Hydraulic Pipelines with Cavitation

A Hybrid Heuristic Optimization Approach for Leak Detection in Pipe Networks Using Ordinal Optimization Approach and the Symbiotic Organism Search

A distributed parameter systems view of control problems in drilling

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