Simultaneous Measurement of Velocity and Density Fields of Gravity Current

Yugo Sanada; Yasuyuki Toda; Sachiko Hamachi; Toshio Suzuki

doi:10.14856/jksna.2005.145

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Simultaneous Measurement of Velocity and Density Fields of Gravity Current

Journal article

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Simultaneous Measurement of Velocity and Density Fields of Gravity Current

Yugo Sanada, Yasuyuki Toda, Sachiko Hamachi and Toshio Suzuki

Journal of the Kansai Society of Naval Architects, Japan, Vol.2005(243), pp.145-151

03/25/2005

DOI: 10.14856/jksna.2005.145

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Abstract

In this paper, a new technique for simultaneous measurement of the density and velocity fields is proposed. In the experiments, the regions with a density distribution are inserted between the camera and liquid crystal display, on which a picture of the random pattern are projected. The random pattern displacement was tracked before the density distribution changed. The gradient of the logarithmic function of the refractive index in the area was measured, and the density distributions are numerically reconstructed. Using PIV with above method, both density and velocity distributions of the gravity current were measured simultaneously, and they are in close agreement with conventional measurements.

Gravity Current

Multi-Physical Value

PIV

Refractometry

Simultaneous Measurement

Details

Title: Subtitle: Simultaneous Measurement of Velocity and Density Fields of Gravity Current
Creators: Yugo Sanada
Yasuyuki Toda
Sachiko Hamachi
Toshio Suzuki
Resource Type: Journal article
Publication Details: Journal of the Kansai Society of Naval Architects, Japan, Vol.2005(243), pp.145-151
Publisher: THE JAPAN SOCIETY OF NAVAL ARCHITECTS AND OCEAN ENGINEERS
DOI: 10.14856/jksna.2005.145
ISSN: 1346-7727
Language: Japanese
Date published: 03/25/2005
Academic Unit: IIHR--Hydroscience and Engineering
Record Identifier: 9984748253602771

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