Corrugated Pipes Conveying Fluid: Vibration and instability analysis

The global flexibility and local rigidity of corrugated pipes have made them a good candidate in many engi- neering applications such as aerospace, oil and gas industries, heat and cooling systems, compact heat ex- changers, etc. In this study, dynamic responses of corrugated clamped-clamped pipes conveying fluid are investigated. The governing equations of the system are derived by using the Hamiltonian principle based on the Euler-Bernoulli beam hypothesis. Non-uniformity of the flow velocity profile is considered in the formulation for both laminar and turbulent fluid flow. So, the flow-profile-modification factor for laminar flow and space- dependent mean velocity for turbulent flow are proposed. For spatial discretization of these equations, the finite element method is used. The effects of several parameters including fluid velocity, the corrugation length, as well as corrugation amplitude on the stability of the pipe system are examined. Natural frequencies of the pipe in hydrostatic flow conditions and critical flow velocities are determined for a vast range of parameters. Nu- merical results show that the stability of the system is significantly affected by the corrugation length and amplitude.

Files

Metadata

Work Title Corrugated Pipes Conveying Fluid: Vibration and instability analysis
Access
Open Access
Creators
  1. Mahmood Heshmati
  2. Farhang Daneshmand
  3. Yaser Amini
Keyword
  1. fluid-conveying corrugated pipe
  2. stability
  3. dynamics
  4. Euler-Bernoulli beam
  5. fluid-structure interaction
  6. bifurcation
  7. flutter
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. Ocean Engineering
Publication Date March 2023
Publisher Identifier (DOI)
  1. https://doi.org/10.1016/j.oceaneng.2022.113507
Deposited August 22, 2024

Versions

Analytics

Collections

This resource is currently not in any collection.

Work History

Version 1
published

  • Created
  • Added Corrugated_Pipe-Final_Manuscript-Revised.pdf
  • Added Creator Mahmood Heshmati
  • Added Creator Farhang Daneshmand
  • Added Creator Yaser Amini
  • Published
  • Updated
  • Updated Keyword, Publisher Identifier (DOI), Publication Date Show Changes
    Keyword
    • fluid-conveying corrugated pipe, stability, dynamics, Euler-Bernoulli beam, fluid-structure interaction, bifurcation, flutter
    Publisher Identifier (DOI)
    • https://doi.org/10.1016/j.oceaneng.2022.113507
    Publication Date
    • 2023-03-01
    • 2023-03
  • Deleted Corrugated_Pipe-Final_Manuscript-Revised.pdf
  • Added Corrugated_Pipe-Final_Manuscript-Revised-Clean.pdf