Japan Society of Civil Engineers 2025 Annual Meeting
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Session Details

Oral PresentationSection II

水理学・流体力学

Fri. Sep 12, 2025 10:40 AM - 12:00 PM JST
Fri. Sep 12, 2025 1:40 AM - 3:00 AM UTC
C102
10:40 AM - 10:50 AM JST(1:40 AM - 1:50 AM UTC)

[II-72]Some Considerations on Water Surface Profile Analysis of Open Cnannel Flows by Means of 1-D Momentum Equation with Eddy Viscosity Term

*Takashi Hosoda, Shinichiro Onda1, Shirai Hiekazu2 (1. Kyoto University, 2. Kitami Institute of Technology)
10:50 AM - 11:00 AM JST(1:50 AM - 2:00 AM UTC)

[II-73]Hydraulic Experiments about the Effects of Local Losses and Cross-sectional Changes of Manholes in a Pipe Flow

*Kotaro Iimura1, Yuichi Nagano1, Yuriko Takayama1, Oda Yukinobu1 (1. TAISEI CORPORATION)
11:00 AM - 11:10 AM JST(2:00 AM - 2:10 AM UTC)

[II-74]Evaluating Frequency Characteristics of Seismic Hydrodynamic Pressure in a Pipeline System

*Taiki Hagiwara1, Takashi Ohkubo1, Kaori Hoshino1 (1. Civil Engineering Research Institute for Cold Region)
11:10 AM - 11:20 AM JST(2:10 AM - 2:20 AM UTC)

[II-75]Study on the direction of water surface profile calculation for steady flow in open channel

*Kesayoshi Hatano1, Shinji Arao, Satoru Takagi (1. Civil Engineering Consultant DAIICH FUKKEN)
11:20 AM - 11:30 AM JST(2:20 AM - 2:30 AM UTC)

[II-76]Evaluation of overflow mitigation effects on surface-coated river levees using three-dimensional fluid analysis

*Koichi Hosaka1, Shinya Itoshiro1, Takehito Zaha1, Kazuya Akiyama1, Kazunori Tsuchihashi2, Yuji Shimizu2, Yasuo Nihei3 (1. Yachiyo Engineering Co., Ltd., 2. Maeda Kosen Co., Ltd., 3. Tokyo University of Science)
11:30 AM - 11:40 AM JST(2:30 AM - 2:40 AM UTC)

[II-77]Experimental study of temporal variation of scour depth at piers with bed degradation in a river channel

*Soei Takezaki1, Kazunori Tanaka2, Hiroshi Koseki1 (1. Public Works Research Institute, 2. GIKEN LTD.)
11:40 AM - 11:50 AM JST(2:40 AM - 2:50 AM UTC)

[II-78]Measurement and evaluation of roughness coefficient in a power plant spillway

*Yusei Tsukamoto1, Yuusuke Otsubo1, Shota Takezawa2, Yukihisa Matsumoto2 (1. The Kansai Electric Power Co., Inc., 2. OBAYASHI CORPORATION)
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