Measurement of fluid velocity gradients using laser-doppler techniques

R. J. Goldstein, R. J. Adrian

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Two methods are developed for the measurement of fluid velocity gradients using a laser-Doppler anemometer. In the first method the velocity gradient is found by a single measurement of the bandwidth of the laser-Doppler signal spectrum. In the second, velocity gradients very close to a wall are calculated from the amount the signal spectrum shifts in frequency for a small change in the position at which the spectrum is measured. Both methods are examined theoretically and experimentally.

Original languageEnglish (US)
Pages (from-to)1317-1320
Number of pages4
JournalReview of Scientific Instruments
Volume42
Issue number9
DOIs
StatePublished - Dec 1 1971
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation

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