Journal article
Simultaneous Measurements of Velocity and Density Fields in Gravity Currents
Transactions of Visualization Society of Japan, Vol.23(Supplement1), pp.123-126
2003
DOI: 10.3154/jvs.23.Supplement1_123
Abstract
Gravity currents are very important phenomenan for the marine environment.
In this paper, a new and original technique for simultaneous measurement of density field and velocity field is proposed.
If a density distribution changes in a certain area, the refractive index distribution in that area will change. So, the volume areas with a density distribution are inserted between a CCD camera and a picture, the picture moves small displacement corresponding to the density gradient. Integrate the displacement, density distribution is reproduced numerically.
Combining PIV method with the above procedure, it enable to measure both density and velocity simultaneously.Steady and unsteady flow fields are measured and compared with the data which measured by conductive salinity probes. The results show good agreement between them.
Details
- Title: Subtitle
- Simultaneous Measurements of Velocity and Density Fields in Gravity Currents
- Creators
- Yugo SanadaToshio SuzukiYasuyuki Toda
- Resource Type
- Journal article
- Publication Details
- Transactions of Visualization Society of Japan, Vol.23(Supplement1), pp.123-126
- DOI
- 10.3154/jvs.23.Supplement1_123
- ISSN
- 0916-4731
- eISSN
- 1884-037X
- Number of pages
- 4
- Language
- Japanese
- Date published
- 2003
- Academic Unit
- IIHR--Hydroscience and Engineering
- Record Identifier
- 9984748253802771
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