Abstract
The characteristics of turbulence, interfacial fluctuation and entrainment caused by an oscillating grid have been investigated. The turbulent intensities, integral length scales and organized eddy scales have been described with the distance from the grid and the physical quantities of grid oscillation. The r. m. s. values, integral time scales and predominant periods of the interfacial fluctuation have been shown as functions of turbulent Richardson number. From flow visualizations and results mentioned above, we have found how the integral scale eddies and organized eddies play roles on entrainment and suggest the minus 5/3 power entrainment law.
| Original language | English |
|---|---|
| Pages (from-to) | 91-99 |
| Number of pages | 9 |
| Journal | Doboku Gakkai ronbun hokokushu |
| Issue number | 345 /II-1 |
| Publication status | Published - Jan 1 1984 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
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INTERFACIAL PROPERTIES AND ENTRAINMENT DUE TO TURBULENCE GENERATED BY AN OSCILLATING GRID. / Ura, Masaru; Komatsu, Toshimitsu; Matsunaga, Nobuhiro.
In: Doboku Gakkai ronbun hokokushu, No. 345 /II-1, 01.01.1984, p. 91-99.Research output: Contribution to journal › Article
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TY - JOUR
T1 - INTERFACIAL PROPERTIES AND ENTRAINMENT DUE TO TURBULENCE GENERATED BY AN OSCILLATING GRID.
AU - Ura, Masaru
AU - Komatsu, Toshimitsu
AU - Matsunaga, Nobuhiro
PY - 1984/1/1
Y1 - 1984/1/1
N2 - The characteristics of turbulence, interfacial fluctuation and entrainment caused by an oscillating grid have been investigated. The turbulent intensities, integral length scales and organized eddy scales have been described with the distance from the grid and the physical quantities of grid oscillation. The r. m. s. values, integral time scales and predominant periods of the interfacial fluctuation have been shown as functions of turbulent Richardson number. From flow visualizations and results mentioned above, we have found how the integral scale eddies and organized eddies play roles on entrainment and suggest the minus 5/3 power entrainment law.
AB - The characteristics of turbulence, interfacial fluctuation and entrainment caused by an oscillating grid have been investigated. The turbulent intensities, integral length scales and organized eddy scales have been described with the distance from the grid and the physical quantities of grid oscillation. The r. m. s. values, integral time scales and predominant periods of the interfacial fluctuation have been shown as functions of turbulent Richardson number. From flow visualizations and results mentioned above, we have found how the integral scale eddies and organized eddies play roles on entrainment and suggest the minus 5/3 power entrainment law.
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UR - http://www.scopus.com/inward/citedby.url?scp=0021430176&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0021430176
SP - 91
EP - 99
JO - Doboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers
JF - Doboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers
SN - 0289-7806
IS - 345 /II-1
ER -