Structure of multiscale/fractal generated turbulence and its application to innovative engineering devices

• Project/Area Number: 25289030
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Nagoya University
• Principal Investigator: Nagata Koji 名古屋大学, 工学(系)研究科(研究院), 教授 (50274501)
• Co-Investigator(Kenkyū-buntansha): 鈴木 博貴 山口大学, 理工学研究科, 助教 (10626873) ; 酒井 康彦 名古屋大学, 工学(系)研究科(研究院), 教授 (20162274) ; 寺島 修 名古屋大学, 工学(系)研究科(研究院), 助教 (50570751)
• Co-Investigator(Renkei-kenkyūsha): TANNO Kenji 一般財団法人電力中央研究所, 研究員 (60462884) ; ITO Yasumasa 名古屋大学, 大学院工学研究科, 准教授 (40346078)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2013: ¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
• Keywords: 流体工学 / 乱流 / スカラー / 混合 / ミキサー

Outline of Final Research Achievements

Development and decay of multiscale/fractal generated turbulence are investigated in detail by means of wind tunnel/water channel experiments and numerical simulations (direct numerical simulation (DNS) and large-eddy simulation (LES)). In addition, experimental apparatus for investigating co-axial jet and swirling flow is designed and manufactured and its turbulence characteristics are measured. The experimental results show that the combination of large square grid and inhomogeneously arranged smaller grids produces an elongated non-equilibrium region. The DNS is conducted for the turbulence generated by the single-square-grid. The invariants of the velocity gradient tensor and enstrophy production and dissipation are analyzed in detail and the development of grid turbulence are clarified.

Research Products

• [Int'l Joint Research] インペリアルカレッジ(英国)
• [Journal Article] Effects of Grid Geometry on Non-Equilibrium Dissipation in Grid Turbulence (2017)
  • Author(s): K. Nagata, T. Saiki, Y. Sakai, Y. Ito, K. Iwano
  • Journal Title: Physics of Fluids Volume: 29 Issue: 1 Pages: 15102-15102
  • DOI: 10.1063/1.4973416
  • NAID: 120006305602
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Mixing and Diffusion in Regular/Fractal Grid Turbulence (2016)
  • Author(s): Y. Sakai, K. Nagata, H. Suzuki, Y. Ito
  • Journal Title: Fractal Flow Design: How to Design Bespoke Turbulence and Why Volume: - Pages: 17-73
  • DOI: 10.1007/978-3-319-33310-6_2
  • ISBN: 9783319333090, 9783319333106
  • Acknowledgement Compliant
• [Journal Article] 非平衡格子乱流場の特性とスカラー輸送機構 (2016)
  • Author(s): 酒井康彦, 長田孝二, 伊藤靖仁, 渡邉智昭, 岩野耕治
  • Journal Title: ながれ Volume: -
  • Open Access / Acknowledgement Compliant
• [Journal Article] Turbulent Mixing of a Passive Scalar in Grid Turbulence (2016)
  • Author(s): Y. Ito, T. Watanabe, K. Nagata, Y. Sakai
  • Journal Title: Physica Scripta Volume: 91 Issue: 7 Pages: 074002-074002
  • DOI: 10.1088/0031-8949/91/7/074002
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Implicit Large Eddy Simulation of a Scalar Mixing Layer in Fractal Grid Turbulence (2016)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase
  • Journal Title: Physica Scripta Volume: 91 Issue: 7 Pages: 074007-074007
  • DOI: 10.1088/0031-8949/91/7/074007
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Enstrophy Production and Dissipation in Developing Grid-generated Turbulenc (2016)
  • Author(s): Y. Zhou, K. Nagata, Y. Sakai, Y. Ito, T. Hayase
  • Journal Title: Physics of Fluids Volume: 28 Issue: 2 Pages: 025113-025113
  • DOI: 10.1063/1.4941855
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Large eddy simulation study of turbulent kinetic energy and scalar variance budgets and turbulent/non-turbulent interface in planar jets (2016)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito
  • Journal Title: Fluid Dynamics Research Volume: 48 Issue: 2 Pages: 21407-21407
  • DOI: 10.1088/0169-5983/48/2/021407
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Spatial Evolution of the Helical Behavior and the 2/3 Power-law in Single-square-grid-generated Turbulence (2016)
  • Author(s): Y. Zhou, K. Nagata, Y. Sakai, Y. Ito, T. Hayase
  • Journal Title: Fluid Dynamics Research Volume: 48 Issue: 2 Pages: 021404-021404
  • DOI: 10.1088/0169-5983/48/2/021404
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Lagrangian properties of the entrainment across turbulent/non-turbulent interface layers (2016)
  • Author(s): T. Watanabe, C. B. da Silva, Y. Sakai, K. Nagata, T. Hayase
  • Journal Title: Physics of Fluids Volume: 28 Issue: 3 Pages: 031701-031701
  • DOI: 10.1063/1.4942959
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Turbulent mixing of passive scalar near turbulent and non-turbulent interface in mixing layers (2015)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase
  • Journal Title: Physics of Fluids Volume: 27 Issue: 8 Pages: 085109-085109
  • DOI: 10.1063/1.4928199
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] On the Evolution of the Invariants of the Velocity Gradient Tensor in the Single-square-grid-generated Turbulence (2015)
  • Author(s): Y. Zhou, K. Nagata, Y. Sakai, Y. Ito, T. Hayase
  • Journal Title: Physics of Fluids Volume: 27 Issue: 7 Pages: 075107-075107
  • DOI: 10.1063/1.4926472
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] LES-Lagrangian particle method for turbulent reactive flows based on the approximate deconvolution model and mixing model (2015)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase
  • Journal Title: Journal of Computational Physics Volume: 294 Pages: 127-148
  • DOI: 10.1016/j.jcp.2015.03.038
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Study on the Dynamics and Geometry of Developing Planar Jets in View of the Invariants of the Velocity Gradient Tensor (2015)
  • Author(s): N. Wu, Y. Sakai, K. Nagata, Y. Ito, T. Hayase
  • Journal Title: Journal of Hydrodynamics Volume: 27 Issue: 6 Pages: 894-906
  • DOI: 10.1016/s1001-6058(15)60552-2
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Conditional statistics in a planar liquid jet with a second-order chemical reaction (2015)
  • Author(s): Tomoaki Watanabe, Yasuhiko Sakai, Kouji Nagata, Osamu Terashima, and Takashi Kubo
  • Journal Title: International Journal of Heat and Mass Transfer Volume: 83 Pages: 768-780
  • DOI: 10.1016/j.ijheatmasstransfer.2014.12.008
  • Peer Reviewed
• [Journal Article] Effects of the cylinder wake in a freestream on joint velocity statistics of a turbulent boundary layer (2015)
  • Author(s): 滝崎貴雄，晝田紘佑，長田孝二，酒井康彦，伊藤靖仁
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 81 Issue: 821 Pages: 14-00582-14-00582
  • DOI: 10.1299/transjsme.14-00582
  • NAID: 130005005019
  • ISSN: 2187-9761
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Vortex stretching and compression near the turbulent/nonturbulent interface in a planar jet (2014)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, and T. Hayase
  • Journal Title: Journal of Fluid Mechanics Volume: 758 Pages: 754-785
  • DOI: 10.1017/jfm.2014.559
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Turbulent Schmidt number and eddy diffusivity change with a chemical reaction (2014)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, and O. Terashima
  • Journal Title: Journal of Fluid Mechanics Volume: 754 Pages: 98-121
  • DOI: 10.1017/jfm.2014.387
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Relevance of Turbulence behind the Single Square Grid to Turbulence Generated by Regular- and Multiscale- Grids (2014)
  • Author(s): Y. Zhou, K. Nagata, Y. Sakai, H. Suzuki, Y. Ito, O. Terashima and T. Hayase
  • Journal Title: Physics of Fluids Volume: 26 Issue: 7 Pages: 075105-075105
  • DOI: 10.1063/1.4890746
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Development of Turbulence behind the Single Square Grid (2014)
  • Author(s): Y. Zhou, K. Nagata, Y. Sakai, H. Suzuki, Y. Ito, O. Terashima and T. Hayase
  • Journal Title: Physics of Fluids Volume: 26 Issue: 4 Pages: 045102-045102
  • DOI: 10.1063/1.4870167
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Wavelet analysis of coherent vorticity near the turbulent/non-turbulent interface in a turbulent planar jet (2014)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, and T. Hayase
  • Journal Title: Physics of Fluids Volume: 26 Issue: 9 Pages: 095105-095105
  • DOI: 10.1063/1.4896298
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Enstrophy and passive scalar transport near the turbulent/non-turbulent interface in a turbulent planar jet flow (2014)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, and T. Hayase
  • Journal Title: Physics of Fluids Volume: 26 Issue: 10 Pages: 105103-105103
  • DOI: 10.1063/1.4898208
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Reactive scalar field near the turbulent/non-turbulent interface in a planar jet with a second-order chemical reaction (2014)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, and T. Hayase
  • Journal Title: Physics of Fluids Volume: 26 Issue: 10 Pages: 105111-105111
  • DOI: 10.1063/1.4900403
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] The Effects of Inflow Conditions on Reactive-Diffusive Mechanism in a Shear Mixing Layer at Low Reynolds Number (2014)
  • Author(s): Y. Ito, K. Nagata, Y. Sakai and O. Terashima
  • Journal Title: Experimental Thermal and Fluid Science Volume: 55 Pages: 166-173
  • DOI: 10.1016/j.expthermflusci.2014.03.001
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Experimental study on the reaction rate of a second-order chemical reaction in a planar liquid jet (2014)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, and O. Terashima
  • Journal Title: AIChE Journal Volume: 60 Issue: 11 Pages: 3969-3988
  • DOI: 10.1002/aic.14610
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Promotion of Chemical Reaction by a Grid in a Shear Mixing Layer (2014)
  • Author(s): Y. Ito, Y. Sakai and K. Nagata
  • Journal Title: Chemical Engineering and Technology Volume: 37 Issue: 12 Pages: 2103-2108
  • DOI: 10.1002/ceat.201300835
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] DNS study on the development of boundary layer with heat transfer under the effects of external and internal disturbances (2014)
  • Author(s): S. Xia, Y. Ito, K. Nagata, Y. Sakai, H. Suzuki, O. Terashima and T. Hayase
  • Journal Title: Journal of Fluid Science and Technology Volume: 9 Issue: 1 Pages: JFST0005-JFST0005
  • DOI: 10.1299/jfst.2014jfst0005
  • NAID: 130003393094
  • ISSN: 1880-5558
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Numerical study on a boundary layer with heat transfer affected by a wake of a square bar (2014)
  • Author(s): S. Xia, Y. Ito, K. Nagata, Y. Sakai and T. Hayase
  • Journal Title: Journal of Fluid Science and Technology Volume: 9 Issue: 3 Pages: JFST0061-JFST0061
  • DOI: 10.1299/jfst.2014jfst0061
  • NAID: 130004695330
  • ISSN: 1880-5558
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Influence of Reynolds number on coherent structure, flow transition, and evolution of the plane jet (2014)
  • Author(s): N. Wu, Y. Sakai, K. Nagata, H. Suzuki, O. Terashima and T. Hayase
  • Journal Title: Journal of Fluid Science and Technology Volume: 9 Issue: 2 Pages: JFST0013-JFST0013
  • DOI: 10.1299/jfst.2014jfst0013
  • NAID: 130004480043
  • ISSN: 1880-5558
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Concentration measurement in a planar liquid jet with a chemical reaction by using the improved concentration measurement system based on the light absorption spectrometric method (2014)
  • Author(s): T. Naito, T. Watanabe, Y. Sakai, K. Nagata, and Y. Ito
  • Journal Title: Journal of Fluid Science and Technology Volume: 9 Issue: 3 Pages: JFST0041-JFST0041
  • DOI: 10.1299/jfst.2014jfst0041
  • NAID: 130004695310
  • ISSN: 1880-5558
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] A study on effects of temporally varying/ fluctuating noises on statistical profiles measured by means of PLIF method (Development of prediction formulas of the effects, and validation by high-Sc-number scalar mixing layer in grid turbulence) (2014)
  • Author(s): 鈴木博貴，長田孝二，酒井康彦，長谷川豊，牛島達夫
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 80 Issue: 813 Pages: FE0114-FE0114
  • DOI: 10.1299/transjsme.2014fe0114
  • NAID: 130004728624
  • ISSN: 2187-9761
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Conditional statistics near the turbulent/non-turbulent interface in a planar liquid jet with a chemical reaction (2014)
  • Author(s): 内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁
  • Journal Title: Transactions of the JSME (in Japanese) Volume: 80 Issue: 816 Pages: FE0228-FE0228
  • DOI: 10.1299/transjsme.2014fe0228
  • NAID: 130004684659
  • ISSN: 2187-9761
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Turbulence Structure and Turbulence Kinetic Energy Transport in Multiscale/Fractal-Generated Turbulence (2013)
  • Author(s): K. Nagata, Y. Sakai, T. Inaba, H(iroki) Suzuki, O. Terashima, and H(iroyuki) Suzuki
  • Journal Title: Physics of Fluids Volume: 25 (6) Issue: 6 Pages: 65102-65102
  • DOI: 10.1063/1.4811402
  • Peer Reviewed
• [Journal Article] Direct numerical simulation of fractal-generated turbulence (2013)
  • Author(s): Hiroki SUZUKI; Kouji NAGATA; Yasuhiko SAKAI; Toshiyuki Hayase; Yutaka HASEGAWA; Tatsuo USHIJIMA
  • Journal Title: Fluid Dynamics Research Volume: 45 Issue: 6 Pages: 61409-61431
  • DOI: 10.1088/0169-5983/45/6/061409
  • Peer Reviewed
• [Journal Article] Fractal Analysis of Turbulent Mixing in Fractal-Generated Turbulence by Planar Laser-Induced Fluorescence (2013)
  • Author(s): H. Suzuki, K. Nagata, Y. Sakai and Y. Hasegawa
  • Journal Title: Physica Scripta Volume: T155 Pages: 14062-14062
  • DOI: 10.1088/0031-8949/2013/t155/014062
  • Peer Reviewed
• [Journal Article] An Attempt to Improve Accuracy of Higher-order Statistics and Spectra in Direct Numerical Simulation of Incompressible Wall Turbulence by Using the Compact Schemes for Viscous Terms (2013)
  • Author(s): Hiroki SUZUKI; Kouji NAGATA; Yasuhiko SAKAI; Toshiyuki Hayase; Yutaka HASEGAWA; Tatsuo USHIJIMA
  • Journal Title: International Journal for Numerical Methods in Fluids Volume: 73 Issue: 6 Pages: 509-522
  • DOI: 10.1002/fld.3810
  • Peer Reviewed
• [Journal Article] フラクタル格子乱流の空間発展に関する風洞実験（第2報，I 型及びX 型熱線プローブを用いた乱流場の乱れエネルギ輸送の計測） (2013)
  • Author(s): 稲葉拓人，長田孝二，酒井康彦，鈴木浩之，寺島修，鈴木博貴
  • Journal Title: 日本機械学会論文集(B編) Volume: 79 (804) Pages: 1476-1488
  • NAID: 130003374874
  • Peer Reviewed
• [Journal Article] 直接数値計算による格子乱流の解析（不変量およびRottaモデルについて） (2013)
  • Author(s): 鈴木博貴，長田孝二，酒井康彦，早瀬敏幸，長谷川豊，牛島達夫
  • Journal Title: 日本機械学会論文集(B編) Volume: 79 (807) Pages: 2363-2374
  • NAID: 130003386334
  • Peer Reviewed
• [Presentation] 旋回流を伴う軸対象噴流の流れ場とスカラー場の周波数構造解析 (2017)
  • Author(s): 前川祐太, 伊藤靖仁, 酒井康彦, 岩野耕治, 長田孝二, 丹野賢二
  • Organizer: 日本機械学会東海支部第 ６６期総会・講演会
  • Place of Presentation: 静岡大学浜松キャンパス
  • Year and Date: 2017-03-14
• [Presentation] PIVによる球面衝撃波と干渉した格子乱流の渦渡場計測 (2017)
  • Author(s): 阿戸雄大, 伊藤靖仁, 酒井康彦, 岩野耕治, 長田孝二, 佐宗彰弘
  • Organizer: 日本機械学会東海支部第 ６６期総会・講演会
  • Place of Presentation: 静岡大学浜松キャンパス
  • Year and Date: 2017-03-14
• [Presentation] Investigation of Non-equilibrium Turbulence and Its Application to Flow Control (Cases of Mixing Layer, Grid Turbulence and Jet) (2016)
  • Author(s): Y. Sakai, K. Nagata, Y. Ito, K. Iwano, T. Watanabe, T. Hayase, K. Takamure, M. Li
  • Organizer: 16th International Symposium on Advanced Fluid Information
  • Place of Presentation: 仙台国際センター
  • Year and Date: 2016-10-10
  • Int'l Joint Research
• [Presentation] Mixing in a Turbulent Multiscale Flow (2016)
  • Author(s): P. Baj, Y. Ito, K. Nagata, Y. Sakai, P. J. K. Bruce, O. R. H. Buxton
  • Organizer: 24th International Congress of Theoretical and Applied Mechanics
  • Place of Presentation: Montreal, Canada
  • Year and Date: 2016-08-21
  • Int'l Joint Research
• [Presentation] 軸対称噴流と旋回噴流が共存する流れ場の動的構造解析 (2016)
  • Author(s): 前川祐太, 伊藤靖仁, 酒井康彦, 岩野耕治, 長田孝二, 丹野賢二
  • Organizer: 第44回 可視化情報シンポジウム
  • Place of Presentation: 工学院大学新宿キャンパス
  • Year and Date: 2016-07-19
• [Presentation] フラクタル，正方，マルチスケール格子による乱流場の空間 発展と減衰特性に関する研究 (2016)
  • Author(s): 祭貴哲平, 長田孝二, 酒井康彦, 伊藤靖仁, 岩野耕治
  • Organizer: 日本機械学会東海支部 第65期総会・講演会
  • Place of Presentation: 愛知工業大学 八草キャンパス
  • Year and Date: 2016-03-17
• [Presentation] Small-scale Behavior in Developing Grid-generated Turbulence (2015)
  • Author(s): Y. Zhou, K. Nagata, Y. Sakai, Y. Ito
  • Organizer: EUROMECH-ERCOFTAC Workshop: Turbulence Cascades
  • Place of Presentation: Ecole Centrale de Lille on the University Campus of Villeneuve D'ascq (Lille, フランス)
  • Year and Date: 2015-12-02
  • Int'l Joint Research
• [Presentation] Investigation of Non-equilibrium Turbulence and Its Application to Flow Control (2015)
  • Author(s): Y. Sakai, K. Nagata, Y. Ito, K. Iwano, T. Hayase, T. Watanabe, Y. Zhou
  • Organizer: 15th International Symposium on Advanced Fluid Information
  • Place of Presentation: 仙台国際センター
  • Year and Date: 2015-10-27
  • Int'l Joint Research
• [Presentation] Scalar Diffusion in the Near Field of Grid-generated Turbulence (2015)
  • Author(s): Y. Ito, T. Watanabe, K. Nagata, Y. Sakai, K. Iwano
  • Organizer: International Conference on Jets, Wakes, and Separated Flows 2015
  • Place of Presentation: KTH Campus -Royal Instituteof Technology （スウェーデン、ストックホルム）
  • Year and Date: 2015-06-15
  • Int'l Joint Research / Invited
• [Presentation] 軸対称噴流と旋回噴流の共存場に関する実験研究 (2015)
  • Author(s): 粟田浩平, 伊藤靖仁, 李銘淏, 酒井康彦, 長田孝二, 岩野耕治， 丹野賢二, 前川祐太
  • Organizer: 第 52 回日本伝熱シンポジウム
  • Place of Presentation: 福岡国際会議場
  • Year and Date: 2015-06-03
• [Presentation] PIV-PLIF計測による格子乱流中のスカラ混合・拡散に関する研究 (2015)
  • Author(s): 渡邉知幸，伊藤靖仁，長田孝二，酒井康彦，岩野耕治
  • Organizer: 日本機械学会東海支部 第64期総会・講演会
  • Place of Presentation: 中部大学
  • Year and Date: 2015-03-13 – 2015-03-14
• [Presentation] Numerical Study on Coaxial Round Jets with Swirl (2015)
  • Author(s): 李銘淏，伊藤靖仁，長田孝二，酒井康彦，丹野賢二，岩野耕治
  • Organizer: 日本機械学会東海支部 第64期総会・講演会
  • Place of Presentation: 中部大学
  • Year and Date: 2015-03-13 – 2015-03-14
• [Presentation] 旋回流と噴流の共存流場の直接数値計算 (2014)
  • Author(s): Minghao Li，伊藤靖仁，長田孝二，酒井康彦，丹野賢二
  • Organizer: 第28回数値流体力学シンポジウム
  • Place of Presentation: タワーホール船堀，東京都
  • Year and Date: 2014-12-09 – 2014-12-11
• [Presentation] On Non-Equilibrium Region in Grid Turbulence (2014)
  • Author(s): K. Nagata, T. Saiki, Y. Sakai and Y. Ito
  • Organizer: One-Day Workshop: Turbulence Out of Classical Equilibrium in Nature and Engineering and Multiscale- Generated Flows
  • Place of Presentation: University Centre of Bertinoro, Italy
  • Year and Date: 2014-09-21
  • Invited
• [Presentation] Direct and Large Eddy Simulations of Grid Turbulence (2014)
  • Author(s): K. Nagata, Y. Zhou, T. Watanabe, Y. Sakai and Y. Ito
  • Organizer: JSPS Supported Meeting on Interscale Transfers and Flow Topology in Equilibrium and Nonequilibrium Turbulence
  • Place of Presentation: The University of Sheffield, UK
  • Year and Date: 2014-09-15 – 2014-09-16
  • Invited
• [Presentation] フラクタル格子のマルチスケール的要素による後流乱流の空間発展および減衰特性 (2014)
  • Author(s): 祭貴哲平，長田孝二，酒井康彦，伊藤靖仁
  • Organizer: 2014年度日本機械学会年次大会
  • Place of Presentation: 東京電機大学
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] Turbulent Mixing of a Passive Scalar in Grid Turbulence (2014)
  • Author(s): Y. Ito, T. Watanabe, K. Nagata and Y. Sakai
  • Organizer: International Conference "Turbulent Mixing and Beyond
  • Place of Presentation: Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy
  • Year and Date: 2014-08-04 – 2014-08-09
• [Presentation] Implicit Large Eddy Simulation of a Scalar Mixing Layer in Fractal-Grid Generated Turbulence (2014)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, Y. Ito and T. Hayase
  • Organizer: International Conference "Turbulent Mixing and Beyond
  • Place of Presentation: Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy
  • Year and Date: 2014-08-04 – 2014-08-09
• [Presentation] 乱流格子近傍での乱流混合に関する実験研究 (2014)
  • Author(s): 渡邊知幸，伊藤靖仁，長田孝二，酒井康彦
  • Organizer: 第42回可視化情報シンポジウム
  • Place of Presentation: 工学院大学
  • Year and Date: 2014-07-21 – 2014-07-22
• [Presentation] Scalar Mixing near Turbulence-Generating Grids (2014)
  • Author(s): T. Watanabe, Y. Ito, K. Nagata and Y. Sakai, Scalar Mixing near Turbulence-Generating Grids
  • Organizer: 16th International Symposium on Flow Visualization
  • Place of Presentation: Okinawa Convention Center, Okinawa, Japan
  • Year and Date: 2014-06-24 – 2014-06-27
• [Presentation] The Role of Fractal Iterations on the Development of Multiscale/Fractal Generated Turbulence (2014)
  • Author(s): K. Nagata, Y. Sakai, T. Saiki, T. Inaba and Y. Ito
  • Organizer: 3rd EPSRC-ERCOFTAC Workshop on Turbulent Flows Generated/Designed in Multiscale/Fractal Ways: Fundamentals and Application
  • Place of Presentation: Imperial College London, London, UK
  • Invited
• [Presentation] On the Evolution of Turbulent Flow Generated by Single/Fractal-Square Grid (2014)
  • Author(s): Y. Sakai, Y. Zhou, K. Nagata and Y. Ito
  • Organizer: 3rd EPSRC-ERCOFTAC Workshop on Turbulent Flows Generated/Designed in Multiscale/Fractal Ways: Fundamentals and Application
  • Place of Presentation: Imperial College London, London, UK
  • Invited
• [Presentation] Scalar Mixing in Fractal/Regular Grid Turbulences with Different Configurations (2014)
  • Author(s): Y. Ito, T. Watanabe, K. Nagata, Y. Sakai and K. Hoshino
  • Organizer: 3rd EPSRC-ERCOFTAC Workshop on Turbulent Flows Generated/Designed in Multiscale/Fractal Ways: Fundamentals and Application
  • Place of Presentation: Imperial College London, London, UK
  • Invited
• [Presentation] Applications for Fractal Grids; Mixers (2013)
  • Author(s): K. Nagata, Y. Sakai, H. Suzuki, Y. Ito, O. Terashima, T. Watanabe, T. Inaba and Y. Zhou
  • Organizer: MULTISOLVE Training Module 1
  • Place of Presentation: Imperial College London, London, UK
  • Invited
• [Presentation] DNS on Multiscale-Generated Grid Turbulence Using Classical Grid (2013)
  • Author(s): H. Suzuki, K. Nagata, Y. Sakai, T. Hayase, Y. Hasegawa and T. Ushijima
  • Organizer: 8th International Symposium on Turbulence and Shear Flow Phenomena
  • Place of Presentation: Poitiers, France
• [Presentation] Influence of Mainstream Turbulence on Axisymmetric Jet Diffusion Field (2013)
  • Author(s): Nagata, Y. Sakai, T. Inaba, T. Yamaguchi and O. Terashima
  • Organizer: 4th International Conference on Jets, Wakes and Separated Flows
  • Place of Presentation: 名古屋大学
• [Presentation] Production and Transport of Turbulent Kinetic Energy in Fractal-Generated Turbulence (2013)
  • Author(s): T. Inaba, K. Nagata, Y. Sakai, H(iroyuki) Suzuki, O. Terashima and H(iroki) Suzuki
  • Organizer: 4th International Conference on Jets, Wakes and Separated Flows
  • Place of Presentation: 名古屋大学
• [Presentation] DNS study on Small-Scale Characteristics of Fractal-Generated Turbulence (2013)
  • Author(s): H. Suzuki, K. Nagata, Y. Sakai, T. Hayase, Y. Hasegawa and T. Ushijima
  • Organizer: 4th International Conference on Jets, Wakes and Separated Flows
  • Place of Presentation: 名古屋大学
• [Presentation] Stereo PIV Measurement of Regular and Fractal Grid Turbulence in Liquid (2013)
  • Author(s): T. Watanabe, K. Hoshino, Y. Ito, K. Nagata, Y. Sakai and O. Terashima
  • Organizer: 4th International Conference on Jets, Wakes and Separated Flows
  • Place of Presentation: 名古屋大学
• [Presentation] Direct Numerical Simulation of Single-Square Grid-Generated Turbulence (2013)
  • Author(s): Y. Zhou, K. Nagata, Y. Sakai, H. Suzuki, Y. Ito, O. Terashima and T. Hayase
  • Organizer: 4th International Conference on Jets, Wakes and Separated Flows
  • Place of Presentation: 名古屋大学
• [Presentation] An Attempt to Improve Accuracy of PIV Using an Interpolation Method (2013)
  • Author(s): H. Suzuki, T. Ushijima, Y. Hasegawa, K. Nagata and Y. Sakai
  • Organizer: 12th Asian Symposium on Visualization
  • Place of Presentation: National Cheng Kung University, Tainan, TAIWAN
• [Presentation] 乱流生成方法により格子乱流の基本特性を変える試み (2013)
  • Author(s): 鈴木博貴，長田孝二，酒井康彦，早瀬敏幸，長谷川豊，牛島達夫
  • Organizer: 日本流体力学会 年会2013
  • Place of Presentation: 東京農工大学
• [Presentation] 格子乱流の渦構造に関する時系列PIV解析 (2013)
  • Author(s): 鈴木博貴，長谷川豊，牛島達夫，長田孝二，酒井康彦
  • Organizer: 第41回可視化情報シンポジウム
  • Place of Presentation: 工学院大学
• [Book] PIVハンドブック（第二版）「第9章」 (2014)
  • Author(s): 鈴木博貴，長田孝二，酒井康彦，長谷川豊
  • Publisher: 森北出版