Numerical Based Approach for Predicting the Response of Flexible Risers Under Oscillatory Flows at Low Re and KC Numbers


Authors

  • Maria Catalina Valencia-Cardenas Universidad de Antioquia
  • Carlos Alberto Riveros-Jerez Universidad de Antioquia

DOI:

https://doi.org/10.22517/23447214.20361

Keywords:

Tuberías Verticales Flexibles, Número de Keulegan-Carpenter, Simulación Numérica, Flujo Oscilatorio, Dinámica de Vórtices.

Abstract

Flexible riser response prediction relies on semi-empirical models hindered by limitations due experimental data scarcity for particular modelling considerations. This paper presents a numerical-based approach for predicting the flexible riser response under oscillatory flows. A single freedom degree spring-mass-damper system is employed with the mass allowed to move in cross-flow direction. To discretize the Navier-Stokes equations the Finite Volume Method is used. To analyse the flow patterns in each regime the cylinder oscillating period is executed for long time. A bi-dimensional model is setting up using OpenFOAM simulations. Flow behavior, hydrodynamic forces and frequencies were analyzed for Reynolds values between 40-1000 using a KC number 7,9. For Reynolds less than 300 the behavior is in agreement with the literature. For Reynolds 300 or higher, some discrepancies appear in the system dynamics. The numerical results obtained from the numerical approach shows good agreement with experimental data collected from a flexible riser model.

Downloads

Download data is not yet available.

Author Biographies

Maria Catalina Valencia-Cardenas, Universidad de Antioquia

Profesor asistente
Escuela Ambiental - Facultad de Ingeniería
Universidad de Antioquia

Carlos Alberto Riveros-Jerez, Universidad de Antioquia

Universidad de Antioquia
Escuela Ambiental - Facultad de Ingeniería
Universidad de Antioquia

Downloads

    Vistas(Views): 395
  • PDF Descargas(Downloads): 276

Additional Files

Published

2019-03-30

How to Cite

Valencia-Cardenas, M. C., & Riveros-Jerez, C. A. (2019). Numerical Based Approach for Predicting the Response of Flexible Risers Under Oscillatory Flows at Low Re and KC Numbers. Scientia Et Technica, 24(1), 113–125. https://doi.org/10.22517/23447214.20361

Issue

Vol. 24 No. 1 (2019)

Section

Ciencias Básicas

License

Copyrights

The journal is free open access. The papers are published under the Creative Commons Attribution / Attribution-NonCommercial-NoDerivatives 4.0 International - CC BY-NC-ND 4.0 license. For this reason, the author or authors of a manuscript accepted for publication will yield all the economic rights to the Universidad Tecnológica of Pereira free of charge, taking into account the following:

In the event that the submitted manuscript is accepted for publication, the authors must grant permission to the journal, in unlimited time, to reproduce, to edit, distribute, exhibit and publish anywhere, either by means printed, electronic, databases, repositories, optical discs, Internet or any other required medium. In all cases, the journal preserves the obligation to respect, the moral rights of the authors, contained in article 30 of Law 23 of 1982 of the Government Colombian.

The transferors using ASSIGNMENT OF PATRIMONIAL RIGHTS letter declare that all the material that is part of the article is entirely free of copyright.  Therefore, the authors are responsible for any litigation or related claim to intellectual property rights. They exonerate of all responsibility to the Universidad Tecnológica of Pereira (publishing entity) and the Scientia et Technica journal. Likewise, the authors accept that the work presented will be distributed in free open access, safeguarding copyright under the Creative Commons Attribution / Recognition-NonCommercial-NoDerivatives 4.0 International - https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es license.