Please use this identifier to cite or link to this item: http://hdl.handle.net/11422/8490
Type: Artigo
Title: Dynamic behavior of pipes conveying gas–liquid two-phase flow
Author(s)/Inventor(s): Chen, An
Su, Jian
Abstract: Indisponível.
Abstract: In this paper, the dynamic behavior of pipes conveying gas–liquid two-phase flow was analytically and numerically investigated on the basis of the generalized integral transform technique (GITT). The use of the GITT approach in the analysis of the transverse vibration equation lead to a coupled system of second order differential equations in the dimensionless temporal variable. The Mathematica's built-in function, NDSolve, was employed to numerically solve the resulting transformed ODE system. The characteristics of gas–liquid two-phase flow were represented by a slip-ratio factor model that was devised and used for similar problems. Good convergence behavior of the proposed eigenfunction expansions is demonstrated for calculating the transverse displacement at various points of pipes conveying air–water two-phase flow. Parametric studies were performed to analyze the effects of the volumetric gas fraction and the volumetric flow rate on the dynamic behavior of pipes conveying air–water two-phase flow. Besides, the normalized volumetric-flow-rate stability envelope for the dynamic system was obtained.
Keywords: Generalized Integral Transform Technique (GITT)
Dynamic behavior of pipes
Subject CNPq: CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Department : Núcleo Interdisciplinar de Dinâmica dos Fluidos
Publisher: Elsevier
In: Nuclear Engineering and Design
Volume: 292
Issue Date: 17-Jul-2015
DOI: 10.1016/j.nucengdes.2015.06.012
Publisher country: Brasil
Language: eng
Right access: Acesso Aberto
ISSN: 0029-5493
Appears in Collections:Engenharias

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