Behavior of Cold Water Mass Due to Water Surface Cooling in a Closed Water Body
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概要
- 論文の詳細を見る
In some closed water bodies with little inflow and outflow, a flow is gentle and its water quality gets worse by developing stratification. And its main dynamics of flow are circulation flow based on wind action on a water surface (mechanical disturbance) and a thermal convective flow by solar radiation. (thermal disturbance) In the present research, we focused on a closed water body where thermal turbulence was outstanding. Hydraulic experiments were conducted to investigate the behavior of the cold water mass formed around a water surface when the water surface was cooled naturally. And the difference of the behavior was investigated under coverage and no-coverage plants on a water surface. Results indicated that turbulence intensity of the cold water mass and the time scale of convection were influenced by both the Rayleigh number and coverage. The falling cycle of cold water mass was influenced by only the Rayleigh number. The falling cycle of cold water mass and development of convective a flow were also observed by the wavelet transform in the change of water temperature.
- 九州大学の論文
著者
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Hirai Yasumaru
Kyushu Univ. Fukuoka Jpn
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Hirai Yasumaru
Faculty Of Agriculture Kyushu University
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Hirai Yasumaru
Department Of Bioproduction Environmental Sciences Faculty Of Agriculture Kyushu University
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Mori Ken
Department Of Bioproduction And Environmental Sciences Faculty Of Agriculture Kyushu University
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Mori K
Department Of Bioproduction And Environmental Sciences Faculty Of Agriculture Kyushu University
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Mori Ken
Faculty of Agriculture, Kyushu Unviersity
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Mori Ken
Laboratory Of Bioproduction And Environment Information Science Division Of Bioproduction And Enviro
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KAKIZAKI Shinnosuke
Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
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HAMAGAMI Kunihiko
Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University
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Hamagami Kunihiko
Department Of Bioproduction And Environmental Sciences Faculty Of Agriculture Kyushu University
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Hamagami Kunihiko
Faculty Of Agriculture Kyushu University
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Mori Ken
Faculty Of Agriculture Kyushu University
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Hamagami Kunihiko
Graduate School Of Bioresource And Bioenvironmental Schiences Kyushu University
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Kakizaki Shinnosuke
Graduate School Of Bioresource And Bioenvironmental Sciences Kyushu University
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Mori Ken
Faculty Of Agriculture Kyushu Univ.
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