化学反応を伴う液相乱流に関する研究

• Project/Area Number: 13J02531
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Research Field: Fluid engineering
• Research Institution: Nagoya University
• Principal Investigator: 渡邉 智昭 名古屋大学, 工学研究科, 特別研究員(PD)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥3,600,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥600,000); Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,000,000 (Direct Cost: ¥1,000,000)
• Keywords: 乱流 / 化学反応 / 流体工学 / 混合

Outline of Annual Research Achievements

本研究は，(1)液相乱流における微小スケールの濃度拡散場および化学反応場の特性の解明と，(2)確率密度関数法に基づく反応性乱流に対する数値計算手法の構築を目的として行われている．以下に，本年度の研究の進捗について述べる．
研究目的(1)に関して，液相乱流中の物質拡散では拡散物質の分子拡散係数が小さく，乱流場と拡散場の構造の最小スケールに大きな差が生じる．そこで，自由せん断流れにおける物質拡散の直接数値計算 (DNS) を様々な分子拡散係数に対して行い，物質拡散場の分子拡散係数に対する依存性について調査した．その結果，乱流による流体の取り込みに伴う物質輸送において，乱流・非乱流領域間の界面層領域における乱流特性が重要となることが明らかとなった．また，界面層領域を通過する流体の運動の特性は界面内の位置によって大きく変化し，界面外層領域では粘性による渦拡散が，界面内層領域では小スケールの渦構造が取り込まれる流体の運動を支配することがわかった．また，様々な分子拡散係数に対して噴流拡散場のImplicit Large Eddy Simulation (LES) を行い，実験やDNSとの比較からImplicit LESの有効性を示した．
研究目的(2)において，計算粒子による反応場の計算とLESによる流れ場の計算を組み合わせた反応性乱流場の数値計算手法を提案した．この計算手法では，分子拡散の効果を適切にモデル化することが重要となる．そこで，空間的に分布する粒子群の相互作用を基にした分子拡散モデルを提案し，同モデルを用いた計算粒子とLESによる反応性乱流場の数値計算手法を噴流や格子乱流中の反応場へ適用した．計算結果を既存の実験結果などと比較することで，本計算手法により，様々な分子拡散係数に対して反応場の統計的特性を精度よく予測できることを実証した．

Research Progress Status

27年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

27年度が最終年度であるため、記入しない。

Research Products

• [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] 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] LES-Lagrangian-particles-simulation of turbulent reactive flows at high Sc number using approximate deconvolution model (2016)
  • Author(s): T. Watanabe, K. Nagata
  • Journal Title: AIChE Journal Volume: Online Issue: 8 Pages: 1-11
  • DOI: 10.1002/aic.15261
  • Peer Reviewed
• [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] 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] 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] 反応を伴う液相二次元噴流の乱流･非乱流界面近傍での速度･濃度統計量に関する研究 (2015)
  • Author(s): 内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁
  • Journal Title: 日本流体力学会誌 ながれ Volume: 33 Pages: 493-498
  • Open Access / Acknowledgement Compliant
• [Journal Article] Mixing and chemical reaction at high Schmidt number near turbulent/nonturbulent interface in planar liquid jet (2015)
  • Author(s): T. Watanabe, T. Naito, Y. Sakai, K. Nagata, and Y. Ito
  • Journal Title: Physics of Fluids Volume: 27 Issue: 3 Pages: 035114-035114
  • DOI: 10.1063/1.4915510
  • Peer Reviewed / 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] 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] 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] 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] 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] 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] 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] DNSによる反応性物質濃度の乱流シュミット数・乱流拡散係数に関する研究 (2014)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 寺島修, 伊藤靖仁, 早瀬敏幸
  • Journal Title: 日本機械学会論文集 Volume: 80巻809号
  • NAID: 130005004857
  • Peer Reviewed
• [Journal Article] 乱流・非乱流界面近傍の反応場に関する研究 (2014)
  • Author(s): 内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁, 寺島修
  • Journal Title: 日本機械学会ニューズレター流れ Volume: 2014年1月号
• [Journal Article] Joint Statistics between Velocity and Reactive Scalar in a Turbulent Liquid Jet with a Chemical Reaction (2013)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, and O. Terashima
  • Journal Title: Physica Scripta Volume: T155 Pages: 140391-8
  • DOI: 10.1088/0031-8949/2013/t155/014039
  • Peer Reviewed
• [Journal Article] Visualization of Turbulent Reactive Jet by Using Direct Numerical Simulation (2013)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, O. Terashima, H. Suzuki, T. Hayase, and Y. Ito
  • Journal Title: International Journal of Modeling, Simulation, and Scientific Computing Volume: 4 Issue: supp01 Pages: 1341001-1341001
  • DOI: 10.1142/s1793962313410018
  • Peer Reviewed
• [Journal Article] Conditional Statistics of Reactive Concentrations in a Planar Liquid Jet (2013)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagat a, O. Terashima, H. Suzuki, T. Havase, and Y. Ito
  • Journal Title: Proceedings of The 4th International Conference on Jets, Wakes and Separated Flows Volume: CD-ROM
  • Peer Reviewed
• [Journal Article] Improvement of a Spatial Resolution of Concentration Measurement System based on the Light Absorption Spectrometric Method (2013)
  • Author(s): T. Naito, T. Watanabe, Y. Sakai, K. Nagata, O. Terashima, and Y. Ito
  • Journal Title: Proceedings of The 4th International Conference on Jets. Wakes and Separated Flows Volume: CD-ROM
  • Peer Reviewed
• [Journal Article] DNS-PDF Simulation of Turbulent Mixing in a Reactive Planar Jet (2013)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagat a, O. Terashima, Y. Ito, and T. Hayase
  • Journal Title: Asiasim2013 Volume: 402 Pages: 445-452
  • DOI: 10.1007/978-3-642-45037-2_49
  • ISBN: 9783642450365, 9783642450372
  • Peer Reviewed
• [Journal Article] Conditional Statistics in a Liquid Jet with a Chemical Reaction (2013)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 寺島修, 久保貴
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B Volume: 79 Issue: 806 Pages: 2053-2065
  • DOI: 10.1299/kikaib.79.2053
  • NAID: 130003386307
  • ISSN: 0387-5016, 1884-8346
  • Peer Reviewed
• [Journal Article] Scalar Dissipation Rate in a Planar Liquid Jet with a Chemical Reaction (Experimental Study on the Evaluation of the Conditional Moment Closure Equation) (2013)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 寺島修, 久保貴
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B Volume: 79 Issue: 806 Pages: 2066-2076
  • DOI: 10.1299/kikaib.79.2066
  • NAID: 130003386308
  • ISSN: 0387-5016, 1884-8346
  • Peer Reviewed
• [Journal Article] Numerical Simulation of Reactive Planar Jet by Combining the Probability Density Function Method with Direct Numerical Simulation (2013)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 寺島修, 伊藤靖仁, 早瀬敏幸
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B Volume: 79 Issue: 807 Pages: 2434-2445
  • DOI: 10.1299/kikaib.79.2434
  • NAID: 130003386340
  • ISSN: 0387-5016, 1884-8346
  • Peer Reviewed
• [Journal Article] Eddy Diffusivity and Turbulent Schmidt Number in a Turbulent Diffusion Field with a Chemical Reaction (2013)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 寺島修
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B Volume: 79 Issue: 807 Pages: 2424-2433
  • DOI: 10.1299/kikaib.79.2424
  • NAID: 130003386339
  • ISSN: 0387-5016, 1884-8346
  • Peer Reviewed
• [Journal Article] Experimental Study on a Reaction Rate in a Reactive Liquid Jet (2013)
  • Author(s): 渡邊智昭, 酒井康彦, 長田孝二, 寺島修
  • Journal Title: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B Volume: 79 Issue: 808 Pages: 2691-2703
  • DOI: 10.1299/kikaib.79.2691
  • NAID: 130003386378
  • ISSN: 0387-5016, 1884-8346
  • Peer Reviewed
• [Presentation] Characteristics of turbulent/non-turbulent interfaces in wakes in stably-stratified fluids (2015)
  • Author(s): T. Watanabe, J. J. Riley, S. M. de Bruyn Kops, P. J. Diamessis, Q. Zhou
  • Organizer: 68th Annual Meeting of the APS Division of Fluid Dynamics
  • Place of Presentation: Boston
  • Year and Date: 2015-11-22
  • 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: Sendai
  • Year and Date: 2015-10-29
  • Int'l Joint Research
• [Presentation] Relation between enstrophy production and geometry near the turbulent/non-turbulent interface in free shear flows (2015)
  • Author(s): T. Watanabe, C. B. da Silva, Y. Sakai, K. Nagata
  • Organizer: 15th European Turbulence Conference
  • Place of Presentation: Dleft
  • Year and Date: 2015-08-25
  • Int'l Joint Research
• [Presentation] On the dynamics of turbulent/non-turbulence interfaces in stably-stratified fluids (2015)
  • Author(s): J. J. Riley, T. Watanabe, S. M. de Bruyn Kops, P. J. Diamessis
  • Organizer: Workshop on Fundamental Aspects of Geophysical Turbulence II
  • Place of Presentation: Boulder,
  • Year and Date: 2015-08-05
  • Int'l Joint Research
• [Presentation] 化学反応を伴う高Sc数乱流噴流拡散場に関する研究 (2015)
  • Author(s): 内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁, 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
• [Presentation] Effect of free stream turbulence on the entrainment characteristics of jets (2014)
  • Author(s): T. Watanabe, C. B. da Silva, Y. Sakai, and K. Nagata
  • Organizer: 67th Annual Meeting of the APS Division of Fluid Dynamics
  • Place of Presentation: San Francisco, California
  • Year and Date: 2014-11-23
• [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: Sheffield, UK
  • Year and Date: 2014-09-16
  • Invited
• [Presentation] Non-equilibrium transport of enstrophy and scalar near the turbulent/non-turbulent interface in a planar jet (2014)
  • Author(s): Y. Sakai, T. Watanabe, K. Nagata, Y. Ito, and T. Hayase
  • Organizer: JSPS Supported Meeting on Interscale Transfers and Flow Topology in Equilibrium and Nonequilibrium Turbulence
  • Place of Presentation: Sheffield, UK
  • Year and Date: 2014-09-15
  • Invited
• [Presentation] 反応を伴う液相二次元噴流の乱流非乱流界面近傍での速度・濃度統計量に関する研究 (2014)
  • Author(s): 内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁
  • Organizer: 日本流体力学会年会2014
  • Place of Presentation: 東北大学
  • Year and Date: 2014-09-06
• [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: Turbulent Mixing and Beyond 2014
  • Place of Presentation: Trieste, Italy
  • Year and Date: 2014-08-05
• [Presentation] Characteristics of Turbulent/Non-turbulent Interface in a Turbulent Planar Jet with a Chemical Reaction (2013)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, O. Terashima, Y. Ito, and T. Hayase
  • Organizer: American Physical Society 66th Annual Meeting of the APS Division of Fluid Dynamics
  • Place of Presentation: David L. Lawrence Convention Center, Pittsburgh, USA
  • Year and Date: 2013-11-26
• [Presentation] 反応を伴う液相二次元噴流の乱流・非乱流界面近傍の濃度統計量に関する研究 (2013)
  • Author(s): 内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁, 寺島修
  • Organizer: 日本機械学会第91期流体工学部門講演会
  • Place of Presentation: 九州大学伊都キャンパス
  • Year and Date: 2013-11-09
• [Presentation] DNSによる二次元噴流中の反応性物質の乱流拡散係数に関する研究 (2013)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁, 寺島修, 早瀬敏幸.
  • Organizer: 日本流体力学会 年会2013
  • Place of Presentation: 東京農工大学小金井キャンパス
  • Year and Date: 2013-09-13
• [Presentation] 化学反応を伴う液相噴流における濃度の条件付統計量に関する研究 (2013)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 寺島修, 久保貴
  • Organizer: 日本機械学会2013年度年次大会
  • Place of Presentation: 岡山大学津島キャンパス
  • Year and Date: 2013-09-11
• [Presentation] Experimental Investigation of Eddy Diffusivity in a Reactive Liquid Jet (2013)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, O. Terashima., and Y. Ito
  • Organizer: European Turbulence Conference 14
  • Place of Presentation: ENS Lyon, France
  • Year and Date: 2013-09-01
• [Presentation] DNSによる化学反応を伴う二次元噴流の可視化 (2013)
  • Author(s): 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁, 寺島修, 鈴木博貴, 早瀬敏幸
  • Organizer: 第41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: 2013-07-16
• [Presentation] Scalar Transfer Across a Turbulent/Non-turbulent Interface in a Planar Jet (2013)
  • Author(s): T. Watanabe, Y. Sakai, K. Nagata, O. Terashima, Y. Ito, and T. Hayase
  • Organizer: American Physical Society 66th Annual Meeting of the APS Division of Fluid Dynamics (Gallery of Fluid Motion)
  • Place of Presentation: David L. Lawrence Conve ntion Center, Pittsburgh, USA
• [Remarks] 噴流中で生じる化学反応による生成物質濃度の可視化
  • URL: https://www.youtube.com/watch?v=lz8scuQjn6s&feature=youtu.be