• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Institut de Recherche de l’École navale (IRENAV)
  • View Item
  • Home
  • Institut de Recherche de l’École navale (IRENAV)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Full-scale flying shape measurement of offwind yacht sails with photogrammetry

Article dans une revue avec comité de lecture
Author
DEPARDAY, Julien
ccBOT, Patrick
13094 Institut de Recherche de l'Ecole Navale [IRENAV]
ccHAUVILLE, Frederic
AUGIER, Benoit
RABAUD, Marc
419361 Université Paris-Saclay

URI
http://hdl.handle.net/10985/11250
DOI
10.1016/j.oceaneng.2016.09.043
Date
2016
Journal
Ocean Engineering

Abstract

Yacht downwind sails are complex to study due to their non-developable shape with high camber and massively detached flow around thin and flexible membranes. Numerical simulations can now simulate this strong fluid-structure interaction, but need experimental validation. It remains complex to measure spinnaker flying shapes partly because of their inherent instability, like luff flapping. This work presents full-scale experimental investigation of spinnaker shapes with simultaneous measurement of aerodynamic loads on the three sail corners, with navigation and wind data. The experimental set-up and photogrammetric method are presented. Results are analysed in the whole range of apparent wind angle for this sail. The spinnaker shape shows dramatic variations and high discrepancies with the design shape. The photogrammetric measurement produces the full 3D flying shape with a satisfactory accuracy. Even if only steady state results are given here, this new system enables time-resolved measurement of flying shapes and thus flapping of spinnakers to be investigated, which is valuable for yacht performance optimisation. On top of sailing yacht applications, the method is useful in any application where a non-developable 3D shape is to be determined, and particularly when it results from the Fluid Structure Interaction of a flexible structure with a complex flow.

Files in this item

Name:
IRENAV_OE_BOT_2016.pdf
Size:
1.620Mb
Format:
PDF
View/Open

Collections

  • Institut de Recherche de l’École navale (IRENAV)

Related items

Showing items related by title, author, creator and subject.

  • Modal Analysis of Pressures on a Full-Scale Spinnaker 
    Communication avec acte
    DEPARDAY, Julien; AUGIER, Benoit; RABAUD, Marc; MOTTA, Dario; LE PELLEY, David; ccBOT, Patrick; ccHAUVILLE, Frederic (2016)
    While sailing offwind, the trimmer typically adjusts the downwind sail "on the verge of luffing", letting occasionally the luff of the sail flapping. Due to the unsteadiness of the spinnaker itself, maintaining the luff ...
  • Modal Analysis of Pressures on a Full-Scale Spinnaker 
    Article dans une revue avec comité de lecture
    DEPARDAY, Julien; ccBOT, Patrick; ccHAUVILLE, Frederic; AUGIER, Benoit; RABAUD, Marc; MOTTA, Dario; LE PELLEY, David (The Society of Naval Architects and Marine Engineers, 2017)
    While sailing offwind, the trimmer typically adjusts the downwind sail “on the verge of luffing”, occasionally letting the luff of the sail flap. Due to the unsteadiness of the spinnaker itself, maintaining the luff on the ...
  • Numerical study of a flexible sail plan : effect of pitching decomposition and adjustments 
    Communication avec acte
    AUGIER, Benoit; DEPARDAY, Julien; DURAND, Mathieu; ccBOT, Patrick; ccHAUVILLE, Frederic (Ecole Navale, 2013)
    A numerical investigation of the dynamic Fluid Structure Interaction (FSI) of a yacht sail plan submitted to harmonic pitching is presented to analyse the effects of motion simplifications and rigging adjustments on ...
  • Performance enhancement of downwind sails due to leading edge flapping: A wind tunnel investigation 
    Article dans une revue avec comité de lecture
    AUBIN, Nicolas; AUGIER, Benoit; DEPARDAY, Julien; SACHER, Matthieu; ccBOT, Patrick (Elsevier, 2018)
    This work presents a wind tunnel experimental study on the effect of the leading edge flapping on the aerodynamic performance of a spinnaker. Four J80-class spinnaker models, combining two different assembling structures ...
  • Experimental analysis of a strong fluid–structure interaction on a soft membrane — Application to the flapping of a yacht downwind sail 
    Article dans une revue avec comité de lecture
    DEPARDAY, Julien; AUGIER, Benoit; ccBOT, Patrick (Elsevier, 2018)
    In the present study we investigate the flapping instability of a light, soft, highly cambered membrane subject to wind loading. An original in-situ experiment is developed where time-resolved pressures and forces are ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales