Evaluation of Streamwise Waveform on a High-Speed Water Jet by Detecting Trajectories of Two Refracted Laser Beams
Joint Authors
Itoh, Kazuhiro
Kumamaru, Hiroshige
Shimogonya, Yuji
Iwata, Yasuo
Source
International Journal of Optics
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-05
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Free surface fluctuations on a high-speed water jet were measured by a laser beam refraction technique.
This method can be used to obtain quantitative time-series data on local surface fluctuations.
The developed system employs two pulsed laser diodes, and it uses a high-speed optical sensor to detect the instantaneous positions of the laser beams that are refracted at the free surface.
Fluctuations in the slope angle are measured at two locations separated by 1.27 mm.
The wave speed of each free surface wave, which is determined by the zero-upcrossing method, is experimentally evaluated by the cross-correlation method.
A two-dimensional waveform is obtained by integrating the slope angle data.
The local mean wavelength and mean wave steepness are evaluated for average jet velocities up to U=10 m/s.
Streamwise waveforms of the high-speed water jet at several locations exhibit appreciable asymmetry and have steep profiles.
American Psychological Association (APA)
Itoh, Kazuhiro& Iwata, Yasuo& Kumamaru, Hiroshige& Shimogonya, Yuji. 2011. Evaluation of Streamwise Waveform on a High-Speed Water Jet by Detecting Trajectories of Two Refracted Laser Beams. International Journal of Optics،Vol. 2011, no. 2011, pp.1-12.
https://search.emarefa.net/detail/BIM-484713
Modern Language Association (MLA)
Itoh, Kazuhiro…[et al.]. Evaluation of Streamwise Waveform on a High-Speed Water Jet by Detecting Trajectories of Two Refracted Laser Beams. International Journal of Optics No. 2011 (2011), pp.1-12.
https://search.emarefa.net/detail/BIM-484713
American Medical Association (AMA)
Itoh, Kazuhiro& Iwata, Yasuo& Kumamaru, Hiroshige& Shimogonya, Yuji. Evaluation of Streamwise Waveform on a High-Speed Water Jet by Detecting Trajectories of Two Refracted Laser Beams. International Journal of Optics. 2011. Vol. 2011, no. 2011, pp.1-12.
https://search.emarefa.net/detail/BIM-484713
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-484713