ANALYSIS OF HYDRAULIC RESISTANCE WITH FIELD OBSERVATION DATA
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- KUDO Shun
- 土木研究所 水工研究グループ水文チーム
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- YOROZUYA Atsuhiro
- 土木研究所 水工研究グループ水文チーム
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- KOSEKI Hiroshi
- 土木研究所 ICHARM
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- FUETA Toshiharu
- 土木研究所 水工研究グループ水文チーム
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- NAKATSUGAEA Makoto
- 室蘭工業大学大学院 工学研究科
Bibliographic Information
- Other Title
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- 実河川における流水抵抗の分析
- ジツ カセン ニ オケル リュウスイ テイコウ ノ ブンセキ
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Abstract
This study aims to analyze hydraulic resistance with field observation data obtained by acoustic Doppler current profilers. We focused on the τ*-τ*' relation proposed by Kishi & Kuroki, and compared it with the observed data. They showed a quite good agreement in the Hime river and the Chiyoda experimental channel. In addition, the τ*-τ*' relation and the observed data in the Shinano river also showed a reasonable agreement although they have a bit difference in terms of the slope of the τ*-τ*' relation. One of the reasons of the difference is likely to be the value of R/d in the field which is much higher than that of precedence researches. In contrast, observed data in the Jamuna river and the lower Mekong river showed a totally different tendency from the τ*-τ*' relation. It is inferred that high concentration of suspended sediment and high R/d value cause the difference. To conduct a prediction of roughness in the Jamuna river and the lower Mekong river, a new τ*-τ*' relation was derived with the observed data. It is showed that the new τ*-τ*' relation is capable to predict roughness coefficient reasonably by taking R/d into consideration.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 73 (4), I_769-I_774, 2017
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390001205352715136
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- NII Article ID
- 40021163439
- 130006406324
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- NII Book ID
- AN10426673
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- ISSN
- 18808751
- 2185467X
- 09167374
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- HANDLE
- 10258/00010088
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- NDL BIB ID
- 028110176
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed