One-dimensional interferometric Rayleigh scattering velocimetry is demonstrated using a virtually imaged phased array (VIPA). A continuous-wave laser emitting at 532 nm is used as the source, and a low-noise CCD camera is used as the detector. The VIPA has a free spectral range of 15 GHz and is coated for the wavelength range 500–600 nm. Velocity measurements at different flow rates show an accuracy of 10 m/s. Demonstration of high-speed flow velocity measurement is conducted in a jet of air through a contoured converging nozzle. Factors considered for the optimization of the system are discussed along with possibilities of extending the strategy to other measurement techniques.
|Original language||English (US)|
|Number of pages||4|
|State||Published - Oct 15 2021|
Bibliographical noteKAUST Repository Item: Exported on 2021-10-28
Acknowledged KAUST grant number(s): BAS/1/1388-01-01
Acknowledgements: King Abdullah University of Science and Technology (BAS/1/1388-01-01).
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics