Abstract

A laser-Doppler anemometer was used in the real-fringe forward-scattering mode to measure the radial concentration of small tracer particles, relative to centre-line values, in a round free jet. The LDA burst signal was interpreted using the analysis due to Farmer (1972) which relates signal visibility to the number of scatterers in the probe volume. Concentration ratios were obtained from direct measurements of signal visibility from the oscilloscope trace, and from electronic measurements of the a.c./d.c. ratio of the signal. In both cases the resulting concentration profiles gave good agreement with classical measurements using heat and tracer gas diffusion.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.