Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Determination of Maximum Mechanical Energy Efficiency in Energy Galloping Systems
Year:2014
Research Areas
  • Mechanical aeronautics and naval engineering
Information
Abstract
Transverse galloping is a type of aeroelastic instability characterized by large amplitude, low frequency, normal to wind oscillations that appear in some elastic two-dimensional bluff bodies when subjected to a fluid flow, provided that the flow velocity exceeds a threshold critical value. Such an oscillatory motion is explained because of the energy transfer from the flow to the two-dimensional bluff body. The 7 amount of energy that can be extracted depends on the cross section of the galloping prism. Assuming that the Glauert-Den Hartog quasistatic criterion for galloping instability is satisfied in a first approximation, the suitability of a given cross section for energy harvesting is evaluated by analyzing the lateral aerodynamic force coefficient, fitting a function with a power series in tan a (a being the angle of attack) to 10 available experimental data. In this paper, a fairly large number of simple prisms (triangle, ellipse, biconvex, and rhombus cross sections, as well 11 as D-shaped bodies) is analyzed for suitability as energy harvesters. The influence of the fitting process in the energy harvesting efficiency evaluation is also demonstrated. The analysis shows that the more promising bodies are those with isosceles or approximate isosceles cross sections.
International
Si
JCR
Si
Title
Journal of Engineering Mechanics
ISBN
0733-9399
Impact factor JCR
1,173
Impact info
Volume
141
10.1061/(ASCE)EM.1943-7889.0000817.
Journal number
From page
1
To page
8
Month
MAYO
Ranking
Participants
  • Autor: Jose Meseguer Ruiz (UPM)
  • Autor: Angel Pedro Sanz Andres (UPM)
  • Autor: Gustavo Alonso Rodrigo (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Desarrollo y Ensayos Aeroespaciales
  • Centro o Instituto I+D+i: Instituto Universitario de Microgravedad "Ignacio da Riva"
  • Departamento: Sistemas Aeroespaciales, Transporte Aéreo y Aeropuertos
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)