Memorias de investigación
Ponencias en congresos:
Numerical Investigation of the Flow Features around Heave Plates Oscillating Close to a Free Surface or Seabed
Año:2014
Áreas de investigación
  • Ingeniería mecánica, aeronaútica y naval
Datos
Descripción
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.
Internacional
Si
Nombre congreso
ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering
Tipo de participación
960
Lugar del congreso
San Francisco, California, USA
Revisores
Si
ISBN o ISSN
978-0-7918-4549-3
DOI
doi:10.1115/OMAE2014-23818
Fecha inicio congreso
08/06/2014
Fecha fin congreso
13/06/2014
Desde la página
1
Hasta la página
11
Título de las actas
Volume 7: Ocean Space Utilization; Professor Emeritus J. Randolph Paulling Honoring Symposium on Ocean Technology
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Carlos Ariel Garrido Mendoza UPM
  • Autor: Antonio Souto Iglesias UPM
  • Autor: Andrea Colagrossi INCEAN
  • Autor: Benjamin Bouscasse INCEAN
  • Autor: Krish Thiagarajan University of Maine
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: CEHINAV (Canal de Ensayos Hidrodinámicos de la E.T.S.I. Navales)
  • Departamento: Mecánica de Fluidos y Propulsión Aeroespacial