Turbulent Diffusion from a Patchy Surface into the Boundary Layer
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概要
- 論文の詳細を見る
Turbulent diffusion from a small surface source into the boundary layer is studied by means of a wind-tunnel experiment. On the tunnel floor, a strip-shaped heater was placed perpendicularly to the mean flow. We regarded the heat as a passive scalar, and measured the air temperature in the boundary layer over the tunnel floor. The passive scalar, advected on the mean flow, diffuses in the floor-normal direction. For the diffusion of the passive scalar throughout the boundary layer, we find a characteristic length scale in the mean-flow direction. This length scale, which is always twice the boundary-layer thickness regardless of the other experimental parameters, would be useful when we consider the atmospheric boundary layer over a patchy surface.
- 社団法人日本気象学会の論文
- 2005-06-24
著者
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MOURI Hideaki
Meteorological Research Institute
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Kurihara Kazuo
Meteorological Research Institute
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Kurihara Kazuo
Meteorological Res. Inst. Tsukuba
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HAGINOYA Shigenori
Meteorological Research Institute
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HORI Akihiro
Meteorological and Environmental Service, Inc.
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KAWASHIMA Yoshihide
Meteorological and Environmental Service, Inc.
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Hori Akihiro
Meteorological And Environmental Service Inc.
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Haginoya Shigenori
Meteorological Res. Inst. Tsukuba
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Kawashima Yoshihide
Meteorological And Environmental Service Inc.
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