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DINAME2019
DINAME2019
Lumped-parameter modular modeling of a pipe conveying fluid
Submission Author:
Renato Maia Matarazzo Orsino , SP , Brazil
Co-Authors:
Renato Maia Matarazzo Orsino, Renan Di Giulio
Presenter: Renato Maia Matarazzo Orsino
doi://10.26678/ABCM.DINAME2019.DIN2019-0102
Abstract
One of the most classical problems in Fluid-Structure Interaction, the pipe conveying fluid was modeled for the first time as a lumped-parameter articulated chain of rigid pipes. Even though high-hierarchy and reduced-order models have proved to be effective to analyze the dynamic response of this system, their derivation is more complex when compared to a lumped-parameter (LPM) one. This paper proposes a modular method for deriving a generic n-dof LPM for a pipe ejecting or aspirating fluid. By a modal analysis based on comparisons with a benchmark continuous model, the accuracy of a LPM in representing the dynamics of the system is analyzed as a function of n. Similar comparisons to reduced-order models of similar number of degrees of freedom are also performed.
Keywords
fluid-structure interaction (FSI), Pipe Conveying Fluid, modular modeling methodology, Lumped-parameter Modeling, Reduced Order Modeling
