Dynamics of a cantilevered pipe discharging fluid, fitted with a stabilizing end-piece

Rinaldi, Stephanie; Paı̈doussis, M.P.

doi:10.1016/j.jfluidstructs.2010.01.004

Cited by 47 publications

(10 citation statements)

References 12 publications

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“…It may be noted, if θ = π/2, that the geometry configuration shown in Fig. 2a may be viewed as a similar one to that developed by Rinaldi and Païdoussis [15], who devised an end-piece with four holes for cantilevered pipes. In what follows, the vibration and stability properties in the flow configuration shown in Fig.…”

mentioning

confidence: 92%

“…1 have been studied in the past four decades, both theoretically and experimentally [13][14][15]. The dynamics of pipes with pressurization, dissipation, tensioning, and/or gravity effects [16]; pipes on an elastic foundation [16,17]; pipes with additional springs [18], supports [19], masses [20], or other modifications [21][22][23]; pipes conveying incompressible or compressible [24] fluid, with steady [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24] or unsteady [16,[25][26][27][28] flow velocity, linear [7][8][9][10][11][12][13][14][15][17][18][19]…”

mentioning

confidence: 99%

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Vibration and enhanced stability properties of fluid-conveying pipes with two symmetric elbows fitted at downstream end

Wang

Dai²

2011

Arch Appl Mech

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In this paper, the vibration and stability properties of fluid-conveying pipes with two symmetric elbows fitted at downstream end are investigated. The fluid, after entering from the upstream end, is pushed downwards and eventually exits from the downstream end fitted with two symmetric elbows. The equation of motion is solved by means of Galerkin's method with a four-mode approximation. Calculations are conducted for cantilevered and also for pinned-pinned slender pipes. It is found that the stability of the pipe system can be greatly enhanced with such downstream elbows. The vibration frequency of the fluid-conveying pipes can be comfortably controlled due to the downstream elbows with a selection of angle of inclination. The proposed geometry configuration of fluid-conveying pipes may be useful for the design and improvement of engineering pipeline systems and fluidic devices.

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confidence: 92%

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confidence: 99%

Vibration and enhanced stability properties of fluid-conveying pipes with two symmetric elbows fitted at downstream end

Wang

Dai²

2011

Arch Appl Mech

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“…Then, the numerical method is applied to the system (7), which describes the problem of pipeline oscillations [17,[19][20][21]. Based on this method, an algorithm for the numerical solution of system (7) is described.…”

Section: Numerical Procedures Of Solving the Algebraic Systemmentioning

confidence: 99%

“…Basically, these models describe the stages of the processes in a pipeline conveying fluid and gas. A significant number of publications are devoted to solving linear and nonlinear problems of oscillations and dynamic stability of pipelines [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of pipes conveying gas-liquid two-phase flow

2019

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Results of studies of the oscillations of pipelines conveying a two-phase slug flow are presented in the paper. A viscoelastic model of the theory of beams and the Winkler base model are used in the study of pipeline oscillations with a gas-containing slug flowing inside. The Boltzmann-Volterra hereditary theory of the viscoelasticity is used to describe the viscoelastic properties of the pipeline material and earth bases. The effect of gas and liquid phases flow rates, influence of tensile forces in the longitudinal direction of the pipeline, parameters of Winkler bases, parameters of singularity in the heredity kernels and geometric parameters of the pipeline on the oscillations of structures with viscoelastic properties are numerically studied. It is revealed that an increase in the length of the gas bubble zone leads to a decrease in the amplitude and oscillation frequency of the pipeline. The critical rates for a two-phase slug flow are determined. It is revealed that an increase in the soil density of the bases leads to an increase in the critical rate of gas flow. It is shown that an account of viscoelastic properties of structure material and earth bases leads to a decrease in the critical flow rate.

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“…Similarly defined multi-parameter models were used by Liu and Gorman (1995), and also (for k¼1; a two-parameter model) by Rinaldi and Païdoussis (2010). The introduction of the models was justified on the grounds of better compatibility of the results of simulations and experiments.…”

Section: Evaluation Of Stiffnessmentioning

confidence: 99%

Parametric vibrations of flexible hoses excited by a pulsating fluid flow, Part II: Experimental research

Czerwiński

Łuczko

2015

Journal of Fluids and Structures

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Dynamics of a cantilevered pipe discharging fluid, fitted with a stabilizing end-piece

Cited by 47 publications

References 12 publications

Vibration and enhanced stability properties of fluid-conveying pipes with two symmetric elbows fitted at downstream end

Vibration and enhanced stability properties of fluid-conveying pipes with two symmetric elbows fitted at downstream end

Numerical Modeling of pipes conveying gas-liquid two-phase flow

Parametric vibrations of flexible hoses excited by a pulsating fluid flow, Part II: Experimental research

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