Research keywords (1):
Water Engineering, Disaster prevention Hydraulics
Research theme for competitive and other funds (18):
2022 - 2025 Reevaluation of the flood risk by the flood analysis based on the microtopography information and measured depth of the inundation in the flood prone area
2022 - 2023 Urgent and comprehensive study of 2022 Tonga submarine eruption and associated tsunami
2020 - 2021 Comprehensive research on Kyushu heavy rain disaster in July,2020
2018 - 2021 Risk evaluation of the flooded area by the integration of 120 years precipitation database and the geography space information
2019 - 2020 令和元年台風19号及び台風21号による広域災害に関する総合研究
2018 - 2019 A Comprehensive Study on the Disaster Due to the July 2018 Torrential Rainfall
2016 - 2017 島地川ダム貯水池における重金属対策に資する水質予測モデルの構築
2012 - 2016 Development of disaster management system to protect impaired persons by cooperating residents and local government
2009 - 2009 Study on the debris flow disasters occurred in Chugoku and Northern Kyushu due to the 2009-7 Heavy Rain and the prevention to debris flow disaster
2005 - 2007 Development of a quantitative evaluation procedure for revelment blocks based on aquatic organisms preservation efficiency
2000 - 2002 Analysis of gas transfer mechanisms due to air bubble and turbulence at the air-water interface
1998 - 1999 Studies on elucidation of the air-water gas transfer mechanism on the surface of breakers and the modeling of it
1996 - 1996 自由水表面近傍の乱流構造がガス交換に与える役割
1995 - 1996 Development of concrete block for improving water environment by making use of natural purification
1994 - 1995 Study on the most suitable computational method for diffusion numerical simulation
1994 - 1995 Hydrodynamic Control of Mass Transfer at the Sediment-Water Interface
1993 - 1994 Study on Volume of Wave Overtopping Gained Effectively by a 3-D Structure and Water Purification
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Papers (170):
Takuzo AMANO, Koji ASAI, Yuhei KIKUTA, Kosuke OOTA, Taisuke YAMAMOTO. APPLICATIONS AND ISSUES OF SMALL AND MEDIUM-SIZED RIVERS TO SPECIFIED RIVERS RUNNING ACROSS CITIES. Japanese Journal of JSCE. 2024. 80. 3. n/a-n/a
Katsutoshi WATANABE, Hirotaka UNE, Kouji ASAI. INBESTIGAYION OF CORRECTION FACTOR OF FLOAT METHOD CONSIDERING WATER SURFACE VELOCITY DISRIBUTION CHACTERISTICS AND INTERNAL STRUCTURE OF TURBULENT IN OPEN CHANNEL FLOW. Japanese Journal of JSCE. 2024. 80. 16. n/a-n/a
Koji ASAI, Kotaro TANABE, Koji NISHIYAMA, Hajime SHIROZU. RELATION ANALYSIS BETWEEN METEOROLOGICAL FIELD AND RAINFALL FOR EACH BASIN IN KYUSHU USING SELF-ORGANIZING MAP. Japanese Journal of JSCE. 2024. 80. 16. n/a-n/a
Koji Asai, Hajime Shirozu, Koji Nishiyama. Classification of Typhoon Pattern landed in Japan using Self-Organizing Map. Proceedings of the 40th IAHR World Congress. Rivers & Connecting Mountains and Coasts. 2023
Katsutoshi WATANABE, Yuya MITO, Hirotaka UNE, Kouji ASAI. Characteristics of flow structure due to circularization of straight open channel corner. Transactions of the Visualization Society of Japan. 2022. 42. 12. 1-8
Development of High-Order and High-Resolution 6-point Scheme for Advection Transport
(International Conference on Computational Methods 2007)
Physical Habitat Simulation in River in which Minimum Flow Changes Seasonally
(Proc. International Coneference on Ecological Modelling 2006 in YAMAGUCHI 2006)