検索結果 4863件中 1-20 を表示

  • Effect of Torsion on the Friction Factor of Helical Pipe Flow

    Datta Anup Kumer , Yanase Shinichiro , Hayamizu Yasutaka , Kouchi Toshinori , Nagata Yasunori , Yamamoto Kyoji

    Journal of the Physical Society of Japan 86(6), 2017-05-26

    日本物理学会

  • 流速分布を規定する非定常粘性流れ場の形状設計

    片峯 英次 , 尾関 優太

    計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science 22, 4p, 2017-05

  • Hydroxyethyl cellulose matrix applied to serial crystallography

    Sugahara Michihiro , Nakane Takanori , Masuda Tetsuya , Suzuki Mamoru , Inoue Shigeyuki , Song Changyong , Tanaka Rie , Nakatsu Toru , Mizohata Eiichi , Yumoto Fumiaki , Tono Kensuke , Joti Yasumasa , Kameshima Takashi , Hatsui Takaki , Yabashi Makina , Nureki Osamu , Numata Keiji , Nango Eriko , Iwata So

    … A highly viscous matrix acts as a crystal carrier for serial sample loading at a low flow rate that enables the determination of the structure, while requiring consumption of less than 1 mg of the sample. …

    Scientific Reports 7, 2017-04-06

    機関リポジトリ DOI

  • Quasi-stokeslet induced by thermoplasmonic Marangoni effect around a water vapor microbubble.

    Namura Kyoko , Nakajima Kaoru , Suzuki Motofumi

    … Under continuous heating, the WVMB involves significantly rapid Marangoni flow. … This flow is well-described by a stokeslet sat ~10 μm above the surface of GNF, from which the maximum flow speed around the WVMB is estimated to exceed 1 m/s. … This rapid flow generation is attributed to the small bubble size, over which the temperature is graded, and the superheat at the bubble surface in contact with the GNF. …

    Scientific reports 7, 2017-03-31

    機関リポジトリ DOI

  • Thermal Convection in a Thermosensitive Viscous Fluid with Inhomogeneous Cooling

    Kobayashi Kazuya U. , Oikawa Noriko , Kurita Rei

    Journal of the Physical Society of Japan 86(4), 2017-03-08

    日本物理学会

  • 金属ガラス単分散球形粒子の作製とマイクロ粘性流動加工

    川崎 亮 , 吉年 規治

    山陽特殊製鋼技報 24(1), 2-9, 2017

  • 転波列流れの流速と周期特性に関する実験的研究

    宮島 昌弘 , 水谷 夏樹

    水工学論文集 Annual journal of Hydraulic Engineering, JSCE 61, Ⅰ_727-732, 2017

  • The impacts of thermal radiation and viscous dissipation for the Falkner-Skan flow past a wedge in the presence of nanoparticles suspended in a viscous fluid

    AFIFY Ahmed A.

    … <p>The influences of thermal radiation and non -uniform heat source/sink in Falkner-Skan flow and heat transfer characteristics of nanofluids have been investigated. …

    Journal of Thermal Science and Technology 12(2), JTST0026-JTST0026, 2017

    J-STAGE

  • 自転公転式撹拌装置による高粘度流体中からの脱泡

    野辺 善仁 , 高畑 保之 , 野々村 美宗 , 高橋 幸司

    <p>脱泡は一般に遠心脱泡で行われるが,擬塑性を示す液体中からの微細気泡の脱泡は難しい。本研究では新たな脱泡装置として自転公転式撹拌機を開発し,擬塑性を示す高粘度ジェル中に存在する1 μLの大きさの気泡の脱泡を試みたところ,気泡の数にかかわらず数十秒で脱泡が終了した。この脱泡のメカニズムを明らかにするため,液面上部に赤く染色したジェルを滴下して自転公転操作を行い,遠心操作との比較を行っ …

    色材協会誌 90(8), 264-267, 2017

    J-STAGE

  • Effect of long-time immersion of soft denture liners in water on viscoelastic properties

    IWASAKI Naohiko , YAMAKI Chisato , TAKAHASHI Hidekazu , OKI Meiko , SUZUKI Tetsuya

    … Viscoelastic properties, which were instantaneous and delayed elastic displacements, viscous flow, and residual displacement, were determined using a creep meter, and analyzed with 2-way analysis of variance and Tukey's comparison (<i>α</i>=0.05). …

    Dental Materials Journal 36(5), 584-589, 2017

    J-STAGE

  • 水循環施設における免震・免波構造の効果の評価に関する検討

    有賀 義明 , 佐藤 優乃 , 渡辺 高志 , 西本 安志 , 曹 増延 , 坂下 克之 , 鈴木 高二朗 , 有川 太郎 , 浅井 光輝 , 堀 宗朗

     沿岸域に位置する水循環施設に関しては,強震動に対してのみならず津波に対する安全性の確認と確保が必要になる.強震動と津波に対する対策技術として提案された,免震・免波構造を研究対象とし,その効果の解析評価について検討した.解析モデルは,無対策モデルを1ケース,免震・免波対策モデルを2ケース設定し,免震効果については三次元動的解析により,免波効果については三次元静的解析により検討した.その結果,提案す …

    土木学会論文集A1(構造・地震工学) 73(4), I_721-I_729, 2017

    J-STAGE

  • 表面弾性波を用いた細胞分離マイクロデバイス設計のための数値解析

    八尾谷 亮太 , 矢野 哲也

    <p>高度な粒子・細胞分離技術は、科学・生物学的分析、医療検査において重要な技術とされ、これまでに様々な技術が提案されてきた。その中でも表面弾性波(SAW)を用いた粒子分離技術は、装置作製の容易性と極微量の粒子分散液中から粒子を密度または粒径に応じて高効率かつ迅速に分離できることから注目されている。この分離方法では、微小流路内にSAW定在波(SSAW)を形成し、この領域を通過する粒子に …

    生体医工学 55Annual(5AM-Abstract), 395-395, 2017

    J-STAGE

  • Numerical Cavitation Intensity on a Hydrofoil for 3D Homogeneous Unsteady Viscous Flows

    Leclercq Christophe , Archer Antoine , Fortes-Patella Regiane , Cerru Fabien

    … The estimation of this quantity is a challenging problem both in terms of modeling the cavitating flow and predicting the erosion due to cavitation. … For this purpose, a numerical methodology was proposed to estimate cavitation intensity from 3D unsteady cavitating flow simulations. … This model is applied on a flow around a hydrofoil using different physical (inlet velocities) and numerical (meshes and time steps) parameters. …

    International Journal of Fluid Machinery and Systems 10(3), 254-263, 2017

    J-STAGE

  • 壁面を流下する液膜流れのドライアウトに及ぼす側壁形状の影響

    加藤 健司 , 徐 昌慶 , 磯 良行 , 池田 諒介 , 脇本 辰郎

    … The thin film causes the decline of dynamic pressure of flow and the dryout may happen at higher flow rate. … In this study, the meniscus profile near the side wall was theoretically analyzed from the energy minimum principle under the condition of force balance between gravitational and viscous forces. …

    混相流 31(2), 171-178, 2017

    J-STAGE

  • タンク流出解析への自由表面を有する流れや飛散を考慮した粒子法の適用

    亀田 孝夫 , 野口 新二 , 岩田 正純 , 小川口 深雪

    <p>発電所では水や石油類などの非圧縮性流体を扱っており,安全対策を検討する上で漏えいした流体の挙動を模擬することが求められている。本報告では,タンク流出解析の検討を行うために,自由表面を伴う非圧縮性流れや飛散を模擬可能な粒子法を用いて流体特性(粘性,密度)の違いについて2次元モデルで精度検証を行い,3次元モデルを使って精度向上を図った。タンク流出挙動を粒子法により解析できたと考えられ …

    火力原子力発電大会論文集 13(0), 49-56, 2017

    J-STAGE

  • A unified interpolation stencil for ghost-cell immersed boundary method for flow around complex geometries

    KOR Hosnieh , BADRI GHOMIZAD Mehdi , FUKAGATA Koji

    … <p>We propose a unified interpolation stencil that is used for a ghost-cell immersed boundary method to satisfy wall boundary conditions in Cartesian-based numerical simulation of fluid flow with complex boundaries. … Different interpolation stencils are examined and their convergence rates are compared by solving a benchmark problem on the flow between the concentric cylinders. …

    Journal of Fluid Science and Technology 12(1), JFST0011-JFST0011, 2017

    J-STAGE

  • Numerical investigation of small fish accelerating impulsively to terminal speed

    OGATA Yoichi , AZAMA Takayuki , MORIYAMA Yuji

    Flow fields generated by fish deformations are investigated numerically by the constrained interpolation profile method in combination with an immersed boundary method. … This function consists of a thrust part that is independent of fish speed and a viscous drag part that is proportional to fish speed. …

    Journal of Fluid Science and Technology 12(1), JFST0009-JFST0009, 2017

    J-STAGE

  • Development of Remote Sampling ESI Mass Spectrometry for the Rapid and Automatic Analysis of Multiple Samples

    Yamada Yuki , Ninomiya Satoshi , Hiraoka Kenzo , Chen Lee Chuin

    … The suction of the liquid sample is due to the Venturi effect created by the high-velocity gas flow near the ESI tip. … In addition to serving as the mechanism for suction, the high-velocity gas flow also assists in the nebulization of charged droplets, thus producing a stable ion signal. … Ion transmission is achieved by the viscous flow of the carrier gas. …

    Mass Spectrometry 5(2), S0068-S0068, 2017

    J-STAGE

  • Effect of long-time immersion of soft denture liners in water on viscoelastic properties

    IWASAKI Naohiko , YAMAKI Chisato , TAKAHASHI Hidekazu , OKI Meiko , SUZUKI Tetsuya

    … Viscoelastic properties, which were instantaneous and delayed elastic displacements, viscous flow, and residual displacement, were determined using a creep meter, and analyzed with 2-way analysis of variance and Tukey's comparison (<i>α</i>=0.05). …

    Dental Materials Journal, 2017

    J-STAGE

  • 時間スペクトル法による周期的非定常流れの効率的数値解法の研究

    谷一 慶亮 , 宮路 幸二

    … The efficiencies and accuracies of the method are validated through comparisons with transonic-flow experiments for two- and three-dimensional wings. … For the case of a three-dimensional viscous flow, the computation time to obtain the same periodic flow with a time-marching solution of a sufficiently fine time step was about 1/18 in the time-spectral method. …

    日本航空宇宙学会論文集 65(2), 73-81, 2017

    J-STAGE

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