Fibre Bragg grating use in fluid dynamic studies

S A Wade, M Nazarinia, S B Wong, D Lo Jacono

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The application of fibre Bragg grating sensors for strain and force measurements in fluid dynamic experimental studies is presented. In the first example, a fibre Bragg grating is used as both a tether and a strain gauge for studies of neutrally buoyant spheres. The measured strains on the tether were found to agree well with the theory for the flow rates tested (0.14 to 0.33 m/s). In the second example a Bragg grating sensor has been used to monitor the forces acting on a cylinder as a function of flow rate and when the cylinder is translated in a stationary fluid. Excellent agreement was found between the vibration frequencies of the cylinder as measured by the Bragg grating and with a camera use to record the motion of the cylinder.

Original languageEnglish
Title of host publication19th International Conference on Optical Fibre Sensors
EditorsD Sampson, S Collins, K Oh, R Yamauchi
Place of PublicationBellingham
PublisherSPIE
Number of pages4
Volume7004
ISBN (Print)978-0-8194-7204-5
DOIs
Publication statusPublished - 2008
Event19th International Conference on Optical Fibre Sensors - Perth, WA, Australia
Duration: 15 Apr 200818 Apr 2008

Publication series

NameProceedings of SPIE
PublisherSPIE - the International Society for Optical Engineering
Volume7004
ISSN (Print)0277-786X

Conference

Conference19th International Conference on Optical Fibre Sensors
CountryAustralia
CityPerth, WA
Period15/04/0818/04/08

Keywords

  • strain
  • sensors
  • induced vibrations
  • fibre Bragg gratings
  • force
  • fluid dynamics
  • sphere

Cite this