流体物理学領域 竹内研究室
CFD ギャラリー
翼周りに生じるキャビテーションと乱流渦の非定常現象
（渦：Q=200等値面をスパン方向渦度で色付け，キャビティ：ボイド率10%等値面）
(MP4, 13MB)K. Okabayashi, W. Luo and T. Kajishima
"Large-eddy simulation of cavitating turbulent flow around a Clark-Y11.7% hydrofoil"
Proc. of the 15th Asian International Conference on Fluid Machinery No. AICFM15-P00193, September 2019, pp.1-8
粒子混相 Reyleigh-Benard 対流に見られる秩序運動
(MP4, 12MB)
(MP4, 29MB)S. Takeuchi, T. Tsutsumi, T. Kajishima
"Effect of temperature gradient within a solid particle on the rotation and oscillation modes in solid-dispersed two-phase flows"
International Journal of Heat and Fluid Flow Vol.43, October 2013, pp.15-25
DOI https://doi.org/10.1016/j.ijheatfluidflow.2013.05.013
URL http://hdl.handle.net/11094/57200 (フルバージョンの動画あり)
S. Takeuchi, Y. Miyamori, J. Gu, and T. Kajishima
"Flow reversals in particle-dispersed natural convection in a two-dimensional enclosed square domain"
Phys. Rev. Fluids 4, 084304 (2019) - Published 21 August 2019
DOI https://doi.org/10.1103/PhysRevFluids.4.084304
URL http://hdl.handle.net/11094/73149 (フルバージョンの動画あり)
キャビティー流れに置かれたフィラメントの動き
(MP4, 3.8MB)
(MP4, 3.8MB)
曲げ剛性の有/無（左/右）による非伸長フィラメントの動きの差
S. Takeuchi, H. Fukuoka, J. Gu and T. Kajishima
"Interaction problem between fluid and membrane by a consistent direct discretisation approach "
Journal of Computational Physics Vol.371, (2018) pp.1018-1042
DOI https://doi.org/10.1016/j.jcp.2018.05.033
S. Miyauchi, A. Ito, S. Takeuchi and T. Kajishima
"Fixed-mesh approach for different dimensional solids in fluid flows : application to biological mechanics"
Journal of Mechanical Engineering and Sciences Vol.6, (2014) pp.818-844
URL https://ir.library.osaka-u.ac.jp/repo/ouka/all/71460/JMES2014_OUKAversion-1.pdf
同軸二重円環型熱交換器内の一方向流れ
(MP4, 16.3MB)
D. Takagi, S. Takeuchi, T. Kajishima
"Role of Vortical Structures on the Forced Convective Heat Transfer in Oscillation-Controlled Coaxial-Pipe Heat Exchanger" Journal of Enhanced Heat Transfer Vol.22, 2015, pp.365-389
DOI https://doi.org/10.1615/JEnhHeatTransf.2016015399
自然対流中の粒子による熱輸送
(MP4, 12.0MB)
(MP4, 4.0MB)左：熱伝導性の良い粒子混相 右：粒子間接触伝熱
Takeuchi, Tsutsumi, Kondo, Harada and T. Kajishima
"Heat transfer in natural convection with finite-sized particles considering thermal conductance due to inter-particle contacts"
Computational Thermal Sciences Vol.7, Issue 5-6 (2015) pp.385-404
DOI https://doi.org/10.1615/ComputThermalScien.2016014791
URL https://ir.library.osaka-u.ac.jp/repo/ouka/all/57199/ComputThermalScien_7_56_385.pdf
流体中における多数の弾性粒子の集団的挙動
(MP4, 3.0MB)
(MP4, 2.9MB)Line contour: vorticity, Color contour: von Mises stress
S. Takeuchi, Y. Yuki, A. Ueyama and T. Kajishima
"A Conservative Momentum Exchange Algorithm for Interaction Problem between Fluid and Deformable Particles"
International Journal for Numerical Methods in Fluids Vol.64, Issue 10-12 (2010) pp.1084-1101
DOI https://doi.org/10.1002/fld.2272
URL https://ir.library.osaka-u.ac.jp/repo/ouka/all/57217/IntJNumF_64_1084.pdf
粒子と気泡の干渉問題
(粒子サスペンション中を上昇する気泡)
(MP4, 1.1MB)
(MP4, 1.1MB)
R. Iwata, S. Takeuchi and T. Kajishima
"Large Scale Analysis of Interactive Behaviors of Bubbles and Particles in a Liquid by a Coupled Immersed Boundary and VOF Technique"
Multiphase Science and Technology Vol.22(3), pp.233-246 (2010)
DOI https://doi.org/10.1615/MultScienTechn.v22.i3.40
URL https://ir.library.osaka-u.ac.jp/repo/ouka/all/57198/MultScienTechn_22_3_233.pdf
円柱を水中から引き揚げる問題
(MP4, 130KB)
R. Iwata, S. Takeuchi and T. Kajishima
"Large Scale Analysis of Interactive Behaviors of Bubbles and Particles in a Liquid by a Coupled Immersed Boundary and VOF Technique"
Multiphase Science and Technology Vol.22(3), pp.233-246 (2010)
DOI https://doi.org/10.1615/MultScienTechn.v22.i3.40
URL https://ir.library.osaka-u.ac.jp/repo/ouka/all/57198/MultScienTechn_22_3_233.pdf
弾性変形する翼型と流体の相互作用
(MPEG, 1.7MB)
E. Boujo, T.M.Y.S. Tuan Ya, S. Takeuchi and T. Kajishima
"Study of Fluid-Structure Interaction Problems Involving Deformable Objects by A New Finite Element - Immersed Boundary Approach"
Proc. The Third International Symposium on Aero Aqua Bio-Mechanics (ISABMEC2006), Jul 3-7, 2006, Okinawa, Japan, Paper No. 225
せん断層中の乱流キャビテーション
(キャビテーション数σが小さくなるほどキャビテーション領域が拡大する様子)
単相 (MPEG, 2.8MB)
σ=0.5 (MPEG, 2.8MB)
σ=0.3 (MPEG, 2.8MB)
岡林, 梶島
DNSを用いたキャビテーションによる乱流変調の解析
(DNS Analysis on Turbulence Modulation by Cavitation)
日本機械学会論文集B編 Vol.76, Issue 764 (2010) pp.570-579
DOI https://doi.org/10.1299/kikaib.76.764_570
粒子凝集体の生成過程
(MPEG, 8.9MB)
雪本, 梶島, 竹内,
"二次元配列の糸状微粒子凝集体に作用する流体抵抗のモデル"
日本機械学会論文集B編 Vol.76-762, pp.203-210 (2010)
DOI https://doi.org/10.1299/kikaib.76.762_203
Last modified: Wed MAR 11 2020