小笠原 敏記 OGASAWARA Toshinori

ID:9000248252055

岩手大学 大学院工学研究科社会環境工学専攻 (2014年 CiNii収録論文より)

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Articles:  1-20 of 28

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  • Hydraulic Experiment on Characteristic of Fluid for Structure Around in Quasi-steady Flow  [in Japanese]

    OGASAWARA Toshinori , MITSUHASI Hiroshi , SAKAI Shigeki

    We carried out hydraulic experiments satisfied quasi-steady flow of tsunami floods using circulating water open channel and investigated characteristics of the fluid for a model structure around in th …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70(2), I_316-I_320, 2014

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  • Numerical Simulation on Tsunami Mitigation due to Ohtanabe Fishing Ports in Fudai of Iwate Prefecture  [in Japanese]

    OGASAWARA Toshinori , IWAMA Shyunji , SAKAI Shigeki

    In the Great East Japan Earthquake, we clarified that Ohtanabe fishing ports have fully function as tsunami mitigation using tsunami simulation. The process in which tsunami develops or propagates is …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70(2), I_301-I_305, 2014

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  • Applicability of Numerical Simulations for Ductility Design of Breakwaters against Mega Tsunami  [in Japanese]

    SUNAKAWA Tougo , OKUBO Yosuke , TSUJIO Daiki , SUZUKI Nobuo , OGASAWARA Toshinori

    The design to strengthen coastal defence structures with their ductility is going to be employed. This study applies three different numerical models; CADMAS-SURF2D-OpenFOAM and MPS, to verify their a …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 70(2), I_191-I_195, 2014

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  • AN EXPERIMENT ON STABILITY OF CONNECTED AMOUR BLOCKS AROUND BREAKWATERS AT ONAGAWA PORT  [in Japanese]

    SUNAKAWA Togo , SAITO Shuici , SUZUKI Nobuo , SERA Keiji , TSUJIO Daiki , OGASAWARA Toshinori

    宮城県女川港の湾口防波堤は,東北地方太平洋沖地震に伴う津波によって被害を受けた.その復旧には,L2津波作用時に最低限の機能を維持できる粘り強い構造が要求される.本研究では水理模型実験を実施して,被覆ブロックの連結が粘り強さに寄与し,経済的な断面であるかを検証した.<br> 海底地盤が洗掘されない条件下において,潜堤部では被覆ブロックの連結が構造物の粘り強さに大きく寄与することを示唆した …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 70(2), I_474-I_479, 2014

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  • FIELD OBSERVATION OF AQUATIC ENVIRONMENT IN MIYAKO BAY, IWATE, JAPAN AFTER THE GREAT EAST JAPAN EARTHQUAKE  [in Japanese]

    MURAKAMI Tomokazu , FURUYA Ryutaro , OGASAWARA Toshinori , SHIMOKAWA Shinya

    2011年の東北地方太平洋沖地震津波発生後の岩手県宮古湾では,水質調査が行われておらず,津波発生後の宮古湾全体の水質環境は不明な状況にある.そこで本研究では,津波発生後の2013年9月および12月に水温,塩分,濁度,DOおよびクロロフィルaの同時計測が可能な可搬型多項目水質計を用いて,宮古湾内24~28箇所の多地点かつ鉛直0.1m間隔の高解像度の観測を行った.<br> その結果,閉伊川 …

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 70(2), I_19-I_24, 2014

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  • Characteristics of MPS Method using Polygon-Wall Boundary and its Application to Tsunami Overflowing Breakwater  [in Japanese]

    OGASAWARA Toshinori , KAMEO Minori , SASAKI Satoru , SUNAGAWA Togo

    The purpose of our study is to develop numerical simulation to investigate the toughness of tsunami disaster countermeasures. Moving Particle Semi-implicit (MPS) method was used in the simulation. The …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 69(2), I_901-I_905, 2013

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  • Characteristics of Buildings Damage due to Tohoku Earthquake and Tsunami in Iwate Prefecture  [in Japanese]

    OGASAWARA Toshinori , KOSAKA Kozue , YANAGAWA Ryoichi , IWAMA Syunji , SAKAI Shigeki

    Based on survey on current conditions data of buildings damage for 2011 Tohoku earthquake and tsunami, we comprehend the status of buildings damage and clarify its characteristics of 12 municipalities …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 69(2), I_356-I_360, 2013

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  • Characteristics on Damages of 2011 Tohoku Tsunami in Iwate Coast  [in Japanese]

    OGASAWARA Toshinori , SAKAI Shigeki

    混相流 = Japanese journal of multiphase flow 26(1), 28-35, 2012-03-15

    References (5)

  • Development of wall boundary condition of polygon type by MPS method  [in Japanese]

    Sasaki Satoru , Ogasawara Toshinori

    津波氾濫流は,漂流物を含む複雑な現象であるため,現地観測が難しく,また水理実験での再現が経済的・労力的にも困難であるため,高精度な流体解析の開発が要求される.粒子法の一つであるMPS (Moving Particle Semi-implicit)法は,自由表面を含む非圧縮性流れの複雑な流動計算だけでなく,多様な物理現象の解析にも適しているといわれている.MPS法では,流体および壁を粒子として計算す …

    NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan 61(0), 169-169, 2012

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  • Development of polygon-wall boundary model using Delaunay triangulation by MPS method  [in Japanese]

    SASAKI Satoru , OGASAWARA Toshinori

    Tsunami overflow is complicated phenomena to include various kinds of debris. In experiments, it spends for long time and is not economical. Therefore, a high-precision numerical simulation is require …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 68(2), I_856-I_860, 2012

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  • Tsunami Evacuation of Students of Elementary and Junior High-school in Iwate at the 2011 off the Pacific coast of Tohoku Earthquake  [in Japanese]

    MATSUBAYASHI Yuriko , KAWASHIMA Ayaka , OGASAWARA Toshinori , SAKAI Shigeki

    On March 11, 2011, the 2011 off the Pacific coast of Tohoku Earthquake occurred. The tsunami generated by the earthquake struck and caused extensive damage to Japan's coastal areas. In Iwate prefectur …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 68(2), I_1321-I_1325, 2012

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  • Experiments on Characteristics of Temperature and Salinity in Growing Process of Sea Ice  [in Japanese]

    OGASAWARA Toshinori , ITO Ryota , OGASAWARA Ayumu , KOSIDA Naoki , SAKAI Shigeki

    The presence of sea ice in the polar region plays an important role in the global climate system, and it is therefore important to understand the characteristics on the temperature and salinity in gro …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 68(2), I_1261-I_1265, 2012

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  • Aspects of the 2010 Chile earthquake tsunami  [in Japanese]

    松冨 英夫 , 原田 賢治 , 小笠原 敏記 [他]

    Tohoku journal of natural disaster science 47, 83-88, 2011-03

  • 2010年チリ地震津波の諸相  [in Japanese]

    松冨 英夫 , 原田 賢治 , 小笠原 敏記 [他] , 片岡 俊一

    Tsunami engineering technical report (28), 29-34, 2011-03

  • Wave Attenuation of Regular Waves Propagating through Frazil/Grease Ice and Pancake Ice  [in Japanese]

    小笠原 敏記 , 川口 秀一 , 堺 茂樹

    土木学会論文集. B2, 海岸工学 67(2), 421-425, 2011

  • Aspects of the 2010 Chile Earthquake Tsunami  [in Japanese]

    松冨 英夫 , 原田 賢治 , 小笠原 敏記 [他]

    土木学会論文集. B2, 海岸工学 67(2), 291-295, 2011

  • Wave Attenuation of Regular Waves Propagating through Frazil/Grease Ice and Pancake Ice

    OGASAWARA Toshinori , KAWAGUCHI Syuichi , SAKAI Shigeki

    This paper focuses on the part for studying an attenuation of surface waves propagating through frazil/grease ice and pancake ice in a wave tank in a cold room. The tank is equipped with a wave maker …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 67(2), I_421-I_425, 2011

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  • Aspects of the 2010 Chile Earthquake Tsunami

    MATSUTOMI Hideo , HARADA Kenji , OGASAWARA Toshinori , KATAOKA Shunichi

    Results of a field survey of the 2010 Chile Earthquake tsunami in Chile are reported. After outlining the general state of tsunami heights, the aspects such as the tsunami-trace distribution around a …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 67(2), I_291-I_295, 2011

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  • On Evacuation Behavior in Iwate at 2010 Chile Earthquake Tsunami

    YOSHIDA Kenichi , MATSUBAYASHI Yuriko , OGASAWARA Toshinori , SAKAI Shigeki

    Chile Earthquake Tsunami hit the coastal area of Japan 28 Feb. 2010. In coastal area of Iwate prefecture, an evacuation order was issued and it's reported that only 12.2% of residents had evacuated to …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 67(2), I_1256-I_1260, 2011

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  • Experimental Study on Characteristic of Growth of Frazil and Pancake Ice

    OGASAWARA Toshinori , KOSAKA Kozue , KOMATSU Nagomu , SAKAI Shigeki

    We conducted laboratory experiments to monitor frazil/pancake ice growth from open water condition in an indoor wave tank cooled at -8 degree. Salt water with concentration of 35psu was used similar t …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 67(2), I_1206-I_1210, 2011

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