河川結氷時の塩水遡上に関する基礎的研究
This study aimed to clarify the fundamental phenomenon of salinity intrusion in ice covered river. We carried out salinity intrusion experiment to which model ice-sheet floats on the water surface and one-dimensional two-layered unsteady flow calculation. In this experiment, the vertical flow veloci...
| Published in: | Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) |
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| Main Authors: | , , , |
| Language: | Japanese |
| Published: |
公益社団法人 土木学会
2012
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| Subjects: | |
| Online Access: | https://kitami-it.repo.nii.ac.jp/record/7757/files/20012-03_河川結氷時の塩水遡上に関する基礎的研究.pdf https://kitami-it.repo.nii.ac.jp/records/7757 |
| Summary: | This study aimed to clarify the fundamental phenomenon of salinity intrusion in ice covered river. We carried out salinity intrusion experiment to which model ice-sheet floats on the water surface and one-dimensional two-layered unsteady flow calculation. In this experiment, the vertical flow velocity was measured using particle image velosimetry technique. In the experiment in which ice-sheet exists, the model ice-sheet indirectly attenuated the salinity intrusion because Reynolds number does not become large. Shear stress was computed by having assigned the experiment data to one-dimensional two-layered unsteady flow equation. In both ice and no-ice condition, Interface shear stress has large influence on salinity intrusion. It was shown that the calculation model built by this study can reproduce salinity intrusion experiment. journal article |
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