Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed

Performance of heave plates used in offshore structures is strongly influenced by their added mass and damping, which are affected by proximity to a boundary. A previous paper by the authors presented numerical simulations of the flow around a circular solid disk oscillating at varying elevations fr...

Full description

Bibliographic Details
Published in:Volume 7: Ocean Space Utilization; Professor Emeritus J. Randolph Paulling Honoring Symposium on Ocean Technology
Main Authors: Garrido Mendoza, Carlos Ariel, Thiagarajan, K.P., Souto Iglesias, Antonio, Bouscasse, Benjamin, Colagrossi, A.
Format: Conference Object
Language:English
Published: E.T.S.I. Navales (UPM) 2014
Subjects:
Online Access:https://oa.upm.es/34749/
id ftunivpmadrid:oai:oa.upm.es:34749
record_format openpolar
spelling ftunivpmadrid:oai:oa.upm.es:34749 2023-05-15T14:24:40+02:00 Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed Garrido Mendoza, Carlos Ariel Thiagarajan, K.P. Souto Iglesias, Antonio Bouscasse, Benjamin Colagrossi, A. 2014 application/pdf https://oa.upm.es/34749/ eng eng E.T.S.I. Navales (UPM) http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1911984 info:eu-repo/semantics/altIdentifier/doi/10.1115/OMAE2014-23818 https://oa.upm.es/34749/ https://creativecommons.org/licenses/by-nc-nd/3.0/es/ info:eu-repo/semantics/restrictedAccess CC-BY-NC-ND ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering | Symposium on Ocean Technology | 08/06/2014 - 13/06/2014 | San Francisco, California, USA Mecánica info:eu-repo/semantics/conferenceObject Ponencia en Congreso o Jornada NonPeerReviewed 2014 ftunivpmadrid https://doi.org/10.1115/OMAE2014-23818 2022-06-06T18:17:19Z Performance of heave plates used in offshore structures is strongly influenced by their added mass and damping, which are affected by proximity to a boundary. A previous paper by the authors presented numerical simulations of the flow around a circular solid disk oscillating at varying elevations from seabed [1]. The force calculated was used to evaluate the added mass and damping coefficients for the disk. The simulations suggest that as the structure moves closer to the seabed the added mass and damping coefficients (Ca and Cb) increases continuously. In order to understand the physics behind the added mass and damping trends, when a heave plate is moving near a seabed or closer to the free surface, the flow characteristics around the heave plate are examined numerically in this paper. Flow around oscillating disks is dominated by generation and development of phase-dependent vortical structures, characterized by the KC number and the distance from the seabed or free surface to the heave plate. Numerical calculations presented in this paper have comprised the qualitative analysis of the vortex shedding and the investigation of the links between such vortex shedding and, on one hand the damping coefficient, and on the other hand, pairing mechanisms such as the shedding angle. Conference Object Arctic Archivo Digital UPM (Universidad Politécnica de Madrid) Volume 7: Ocean Space Utilization; Professor Emeritus J. Randolph Paulling Honoring Symposium on Ocean Technology
institution Open Polar
collection Archivo Digital UPM (Universidad Politécnica de Madrid)
op_collection_id ftunivpmadrid
language English
topic Mecánica
spellingShingle Mecánica
Garrido Mendoza, Carlos Ariel
Thiagarajan, K.P.
Souto Iglesias, Antonio
Bouscasse, Benjamin
Colagrossi, A.
Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed
topic_facet Mecánica
description Performance of heave plates used in offshore structures is strongly influenced by their added mass and damping, which are affected by proximity to a boundary. A previous paper by the authors presented numerical simulations of the flow around a circular solid disk oscillating at varying elevations from seabed [1]. The force calculated was used to evaluate the added mass and damping coefficients for the disk. The simulations suggest that as the structure moves closer to the seabed the added mass and damping coefficients (Ca and Cb) increases continuously. In order to understand the physics behind the added mass and damping trends, when a heave plate is moving near a seabed or closer to the free surface, the flow characteristics around the heave plate are examined numerically in this paper. Flow around oscillating disks is dominated by generation and development of phase-dependent vortical structures, characterized by the KC number and the distance from the seabed or free surface to the heave plate. Numerical calculations presented in this paper have comprised the qualitative analysis of the vortex shedding and the investigation of the links between such vortex shedding and, on one hand the damping coefficient, and on the other hand, pairing mechanisms such as the shedding angle.
format Conference Object
author Garrido Mendoza, Carlos Ariel
Thiagarajan, K.P.
Souto Iglesias, Antonio
Bouscasse, Benjamin
Colagrossi, A.
author_facet Garrido Mendoza, Carlos Ariel
Thiagarajan, K.P.
Souto Iglesias, Antonio
Bouscasse, Benjamin
Colagrossi, A.
author_sort Garrido Mendoza, Carlos Ariel
title Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed
title_short Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed
title_full Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed
title_fullStr Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed
title_full_unstemmed Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed
title_sort numerical investigation of the flow features around heave plates oscillating close to a free surface or seabed
publisher E.T.S.I. Navales (UPM)
publishDate 2014
url https://oa.upm.es/34749/
genre Arctic
genre_facet Arctic
op_source ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering | Symposium on Ocean Technology | 08/06/2014 - 13/06/2014 | San Francisco, California, USA
op_relation http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1911984
info:eu-repo/semantics/altIdentifier/doi/10.1115/OMAE2014-23818
https://oa.upm.es/34749/
op_rights https://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/restrictedAccess
op_rightsnorm CC-BY-NC-ND
op_doi https://doi.org/10.1115/OMAE2014-23818
container_title Volume 7: Ocean Space Utilization; Professor Emeritus J. Randolph Paulling Honoring Symposium on Ocean Technology
_version_ 1766297113960906752