Pulse Propagation in Fluid-Filled Tubes

Walker, John S.; Phillips, James W.

doi:10.1115/1.3424009

Cited by 75 publications

(26 citation statements)

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“…The common numerical models is the "4-equation model ((1) to (4))", which is from the "6-equation model" that is established by Walker and Phillips as in [7] . The model is shown in Fig.1 Fluid…”

Section: A Fluid Solid Interaction Of Pipe Systemmentioning

confidence: 99%

Fluid-solid analysis based on improved bond graph method

Liang

Wang

et al. 2012

IEEE 10th International Conference on Industrial Informatics

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In this paper, a new bond graph method (BGM) model to describe the thin-walled elastic tube with the inviscid compressible fluid is presented. This model represents an improvement over the classical BGM model because the fluid-structure interaction, which acts an important pole in the modal analysis of the pipe with fluid, is considered in this model. The new model is applied to a short water-filled copper pipe to calculate the modal, and comparison is made with the Finite Element Method (FEM) method. Chart results are presented. This model can calculate the modal for the thin-walled elastic tube with fluid well.

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Section: A Fluid Solid Interaction Of Pipe Systemmentioning

confidence: 99%

Fluid-solid analysis based on improved bond graph method

Liang

Wang

et al. 2012

IEEE 10th International Conference on Industrial Informatics

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“…Equations (1) to (4), along with expression (5), constitute the basic conservation equations for the solid-fluid problem and are based on the model described in [5]. In addition to these equations, one must add the constitutive relations which will describe the mechanical behaviour of the pipe material.…”

Section: Pt Ot Osmentioning

confidence: 99%

Model for structural failure of elasto-viscoplastic pipelines

Rachid

Mattos

1994

Meccanica

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Abstract. In this paper a solid-fluid interaction analysis for structural failure prediction of damageable elastoviscoplastic pipes is presented. To solve the coupled non-linear equations describing the dynamics of fluid and pipe wall motions, a numerical procedure based on the method of characteristics is used. To illustrate the applicability of the model, a numerical simulation of a hypothetical accident in a simple nuclear pipeline is presented and analysed.Sommario, In questo articolo si presenta un'analisi dell'interazione solido-fluido per la predizione della rottura (collasso) strutturale in condotte elasto-viscoplastiche. Per risolvere le equazioni non-lineari accoppiate che descrivono la dinamica del fluido e del movimento della parete del tubo, si usa un procedimento numerico basato sul metodo delle caratteristiche. Per illustrare l'applicabilit~ del modello, si presenta e si analizza una simulazione numerica di un incidente ipotetico su una tubazione appartenente ad un reattore nucleare.

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“…For many practical situations, however, it has been shown [8] that the radial pipe wall inertia term in Equation (2.2) might be neglected. In this case, | q =(RP)/e and the system of equations can be reduced to eight equations and eight unknowns because w can be eliminated from the system.…”

Section: Coupled and Uncoupled Modelsmentioning

confidence: 99%

Modelling of pipeline integrity taking into account the fluid-structure interaction

Rachid

Mattos

1998

Int. J. Numer. Meth. Fluids

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Two mechanical models have been presented in this paper for structural failure prediction of piping systems conveying liquids subjected to pressure transients. One model takes into account the axial fluid–structure interaction (FSI) phenomenon between fluid and pipe motion, whereas the other refers to an extension of the well‐known waterhammer formulation. Both models are described by a system of non‐linear hyperbolic equations which are solved by using a numerical procedure based upon the operator splitting technique and Glimm's scheme. To implement Glimm's method, it is presented the solution of a 4×4 Riemann problem with discontinuous coefficients. Numerical predictions of both models are presented and compared, so that the influence of the FSI term on the failure analysis is focused on. © 1998 John Wiley & Sons, Ltd.

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Pulse Propagation in Fluid-Filled Tubes

Cited by 75 publications

References 0 publications

Fluid-solid analysis based on improved bond graph method

Fluid-solid analysis based on improved bond graph method

Model for structural failure of elasto-viscoplastic pipelines

Modelling of pipeline integrity taking into account the fluid-structure interaction

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