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2020
Ito, Y., Naganawa, K., Sakai, Y., & Iwano, K. (2020)
Momentum Diffusion Near Jet Exit in a Round Jet Controlled by Half Delta-Wing Tabs.
Flow, Turbulence and Combustion, 105(3), 715-734.
Momentum Diffusion Near Jet Exit in a Round Jet Controlled by Half Delta-Wing Tabs.
Flow, Turbulence and Combustion, 105(3), 715-734.
Zhou, Y., Nagata, K., Sakai, Y., Watanabe, T., Ito, Y., & Hayase, T. (2020).
Energy transfer in turbulent flows behind two side-by-side square cylinders.
Journal of Fluid Mechanics, 903.
Pravin Ananta Kadu, Yasuhiko Sakai, Yasumasa Ito, Koji Iwano, Masatoshi Sugino,Takahiro Katagiri, Toshiyuki Hayase,Koji Nagata. (2020)
Application of spectral proper orthogonal decomposition to velocity and passive scalar fields in a swirling coaxial jet.
Physics of Fluids 32.
Kenta Aruga, Kento Inokuma, Tomoaki Watanabe, Koji Nagata, Yasuhiko Sakai. (2020).
Experimental investigation of interactions between turbulent cylinder wake and spherical shock wave.
Physics of Fluids 32.
Pravin Ananta Kadua, Yasuhiko Sakai,Yasumasa Ito, Koji Iwano, Masatoshi Sugino,Takahiro Katagir, Toshiyuki Hayase, Koji Nagat. (2020).
Budgets of Turbulent Kinetic Energy and Reynolds Normal Stresses in Coaxial Jets with and Without Swirl: A Numerical Study.
Journal of Energy and Environmental Sustainability 9.
2019
Kotaro Takamure, Yasuhiko Sakai, Yasumasa Ito, Koji Iwano. (2019).
Effect of The Large-scale Structure on Turbulent Prandtl Number in a Turbulent Shear Layer.
Proceedings of the ASME-JSME-KSME 2019.
Kento Inokuma, Tomoaki Watanabe, Koji Nagata, Yasuhiko Sakai. (2019)
Statistics of overpressure fluctuations behind a weak shock wave interacting with turbulence.
Physics of Fluids 31.
Statistics of overpressure fluctuations behind a weak shock wave interacting with turbulence.
Physics of Fluids 31.
Pravin Ananta Kadu, Yasuhiko Sakai, Yasumasa Ito, Koji Iwano, Masatoshi Sugino,Takahiro Katagiri, Koji Nagata. (2019).
Numerical investigation of passive scalar transport and mixing in a turbulent unconfined coaxial swirling jet.
International Journal of Heat and Mass Transfer 142.
Yasumasa Ito, Koichiro Asato, Inhyeok Cho, Yasuhiko Sakai, Koji Iwano, Takahisa Tainaka, Hiroo Uchida. (2019)
Intestinal flow after anastomotic operations in neonates.
Computers in Biology and Medicine 118.
Mamoru Takahashi, Koji Iwano, Yasuhiko Sakai, Yasumasa Ito. (2019).
Three-dimensional visualization of destruction events of turbulent momentum transfer in a plane jet.
Physics of Fluids 31.
Yasumasa Ito, Xiao Liang, Kohei Ishikawa, Toru Ujihara, Yasuhiko Sakai, Koji Iwano. (2019).
Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique.
PHYSICAL REVIEW RESEARCH 1.
Yasuhiko Sakai, Yasumasa Ito, Koji Iwano, Toshiyuki Hayase, Yi Zhou, Jihong Yu, Pravin Ananta Kadu. (2019)
Fluid Dynamics and Energy/scalar Transport in Coexisting Flows of Turbulence and Non-turbulence: Cases of Dual-wakes,D,Grid-turbulence and Complex Jet.
Proceedings of 19th International symposium on Advanced Fluid Information.
Y. Zhou, K. Nagata, Y. Sakai, T. Watanabe. (2019).
Extreme Events and Non-Kolmogorov -5/3 Spectra in Turbulent Flows behind Two Side-by-Side Square Cylinders.
Journal of Fluid Mechanics 874.
Kohei Ishikawa, Takato Mitsuhashi, Yasumasa Ito, Yukihisa Takeuchi, Shuta Harada, Miho Tagawa, Toru Ujihara. (2019).
The relationships between crystal orientation and morphology of electrode from a perspective of crystal growth.
Journal of the Japanese Association of Crystal Growth 46.
Kento Inokuma，Tomoaki Watanabe, Koji Nagata, Yasuhiko Sakai. (2019).
Statistical properties of spherical shock waves propagating through grid turbulence, turbulent cylinder wake, and laminar flow.
Physics Scripta 94.
Mamoru Takahashi, Yasuhiko Sakai, Yasumasa Ito, Koji Iwano. (2019)
Experimental investigation on destruction of Reynolds stress in a plane jet.
Experiments in Fluids 60.
K. Inokuma, T. Watanabe, K. Nagata, Y. Sakai. (2019)
Overpressure Fluctuation behind Spherical Shock Wave Propagating in Grid-generated Turbulence.
AIAA SciTech Forum and Exposition.
Kotaro Takamura, Yasuhiko Sakai, Yasumasa Ito,Koji Iwano. (2019)
Dissipation scaling in the transition region of turbulent mixing layer.
International Journal of Heat and Fluid Flow 75.
2018
Y. Zhou, Koji Nagata, Yasuhiko Sakai, Tomoaki Watanabe. (2018)
Dual-plane turbulent jets and their non-Gaussian velocity fluctuations.
Physical Review Fluids 3.
Dual-plane turbulent jets and their non-Gaussian velocity fluctuations.
Physical Review Fluids 3.
Mamoru Takahashi，Koji Iwano, Yasuhiko Sakai，Yasumasa Ito. (2018)
Numerical Visualization of Reynolds Stress Destruction in a Plane Jet.
Proceedings of 15th International Conference on Flow Dynamics.
Numerical Visualization of Reynolds Stress Destruction in a Plane Jet.
Proceedings of 15th International Conference on Flow Dynamics.
P. Kadu, Yasuhiko Sakai，Yasumasa Ito, Koji Iwano, Masatoshi. Sugino, T. Katagiri, Toshiyuki Hayase. (2018).
Influence of Swirl on Coaxial Jets.
Proceedings of 15th International Conference on Flow Dynamics.
Yasumasa Ito, Kosuke Naganawa, Yasuhiko Sakai, Koji Iwano. (2018).
Entrainment and Diffusion Mechanism in a Round Jet Modified by Vortex Generators.
Proceedings of 15th International Conference on Flow Dynamics.
2017
Yasuhiko Sakai, Koji Nagata, H. Suzuki, Yasumasa Ito. (2017)
Mixing and Diffusion in Regular/Fractal Grid Turbulence: in Fractal Flow Design: How to Design Bespoke Turbulence and Why.
CISM International Centre for Mechanical Sciences Courses and Lectures 568/Springers
Mixing and Diffusion in Regular/Fractal Grid Turbulence: in Fractal Flow Design: How to Design Bespoke Turbulence and Why.
CISM International Centre for Mechanical Sciences Courses and Lectures 568/Springers
Takuya Kitamura, Koji Nagata, Yasuhiko Sakai, Akihiro Sasoh，Yasumasa Ito. (2017)
Changes in Divergence-Free Grid Turbulence Interacting with a Weak Spherical Shock Wave
Physics of Fluids 29.
Changes in Divergence-Free Grid Turbulence Interacting with a Weak Spherical Shock Wave
Physics of Fluids 29.
Tatsuya Matsuda, K. Masunaga, Yasuhiko Sakai, Yasumasa Ito, K. Irie, Koji Iwano，Koji Nagata. (2017).
Modification of Hemodynamics in Basilar Artery Aneurysm by the Single and Y Stent Placement.
Technology and Health Care 25.
Yoshihiro Hasegawa, Chiaki Okihara, Takayuki Yamada, Kai Komatsubara, Koji Iwano, Yasuhiko Sakai, Mitsuhiro Shikida. (2017).
Smooth-surfaced flexible wall shear stress sensor fabricated by film transfer technology.
Sensors and Actuators A: Physical 265.
Kohei Ishikawa, Yasumasa Ito, Shunta Harada, Miho Tagawa, and Toru Ujihara. (2017)
Crystal Orientation Dependence of Precipitate Structure of Electrodeposited Li Metal on Cu Current Collectors.
Crystal Growth & Design 17.
Crystal Orientation Dependence of Precipitate Structure of Electrodeposited Li Metal on Cu Current Collectors.
Crystal Growth & Design 17.
K. Nagata,T. Saiki,Y. Sakai,Y. Ito,K. Iwano. (2017)
Effects of Grid Geometry on Non-Equilibrium Dissipation in Grid Turbulence
Physics of Fluids 29.
Effects of Grid Geometry on Non-Equilibrium Dissipation in Grid Turbulence
Physics of Fluids 29.
2016
P. Baj,Y. Ito,K. Nagata,Y. Sakai,P. J. K. Bruce,O. R. H. Buxton. (2016).
Mixing in a Turbulent Multiscale Flow.
Proc. of the 24th ICTAM.
N. Takagaki, S. Komori, N. Suzuki, K. Iwano, R. Kurose. (2016).
Mechanism of drag coefficient saturation at strong wind speeds.
Geophysical Research Letters 43.
T. Watanabe,Y. Sakai,K. Nagata,Y. Ito,T. Hayase. (2016).
Implicit Large Eddy Simulation of a Scalar Mixing Layer in Fractal Grid Turbulence.
Physica Scripta 91.
Y. Ito,T(omoyuki). Watanabe,K. Nagata,Y. Sakai. (2016).
Turbulent Mixing of a Passive Scalar in Grid Turbulence.
Physica Scripta 91.
Kotaro Takamure,YasumasaIto,Yasuhiko Sakai, Koji Iwano, Toshiyuki Hayase. (2016).
Direct Numerical Simulation of Momentum and Mass Transfer in a Spatially Developing Mixing Layer.
Proceedings of 13th International Conference on Flow Dynamics.
Y. Sakai,K. Nagata,Y. Ito,K. Iwano,T. Watanabe,T. Hayase,K. Takamure,M. (2016).
Investigation of Non-equilibrium Turbulence and Its Application to Flow Control (Cases of Mixing Layer, Grid Turbulence and Jet)
Proceedings of 13th International Conference on Flow Dynamics.
T. Kitamura, K. Nagata,Y. Sakai,A. Sasoh，Y. Ito. (2016).
Rapid Distortion Theory Analysis on the Interaction between Homogeneous Turbulence and a Planar Shock Wave.
Journal of Fluid Mechanics 802.
Yi Zhou, Koji Nagata, Yasuhiko Sakai, Yasumasa Ito, Toshiyuki Hayase. (2016).
Enstrophy production and dissipation in developing grid-generated turbulence.
Physics of Fluids 28.
Tomoaki Watanabe, Carlos B. da Silva, Yasuhiko Sakai, Koji Nagata, Toshiyuki Hayase. (2016).
Lagrangian properties of the entrainment across turbulent/non-turbulent interface layers.
Physics of Fluids 28.
Tomoaki Watanabe, Yasuhiko Sakai, Koji Nagata, Yasumasa Ito. (2016).
Large eddy simulation study of turbulent kinetic energy and scalar variance budgets and turbulent/non-turbulent interface in planar jets.
Fluid Dynamics Research 48.
Yi Zhou, kouji Nagata, Yasuhiko Sakai, Yasumasa Ito, Toshiyuki Hayase. (2016).
Spatial Evolution of the Helical Behavior and the 2/3 Power-Law in Single-Square-Grid Generated Turbulence.
Fluid Dynamics Research 48.
Osamu Terashima, Yasuhiko Sakai, Kouji Nagata, Yasumasa Ito, Kazuhiro Onishi, Yuichi Shouji. (2016).
Simultaneous measurement of velocity and pressure near the turbulent/non-turbulent interface of a planar turbulent jet.
Experimental Thermal and Fluid Science 75.
2015
Nannan Wu, Yasuhiko Sakai, Kouji Nagata, Yasumasa Ito. (2015).
Dynamics and geometry of developing planar jets based on the invariants of the velocity gradient tensor.
Journal of Hydrodynamics 27.
Osamu Terashima, Yasuhiko Sakai, Yusuke Goto, Kazuhiro Onishi, Kouji Nagata, Yasumasa Ito. (2015).
On the turbulent energy transport related to the coherent structures in a planar jet
Experimental Thermal and Fluid Science 68.
Tomoaki Watanabe, Yasuhiko Sakai, Kouji Nagata, Yasumasa Ito， Toshiyuki Hayase. (2015).
LES–Lagrangian particle method for turbulent reactive flows based on the approximate deconvolution model and mixing model.
Journal of Computational Physics 294.
Tomoaki Watanabe, Yasuhiko Sakai, Kouji Nagata, Yasumasa Ito， Toshiyuki Hayase. (2015).
Turbulent mixing of passive scalar near turbulent and non-turbulent interface in mixing layers.
Physics of Fluids 27.
Yi Zhou, Koji Nagata, Yasuhiko Sakai, Yasumasa Ito, Toshiyuki Hayase. (2015).
On the evolution of the invariants of the velocity gradient tensor in singlesquare-grid-generated turbulence.
Physics of Fluids 27.
Osamu Terashima, Yasuhiko Sakai, Kouji NAGATA, Yasumasa Ito, Kazuhiro Onishi, Yuichi Shouji. (2015).
On the velocity and pressure statistics during the flapping motion in a planar turbulent jet
International Journal of Heat and Fluid Flow 53.
Tomoaki Watanabe, Yasuhiko Sakai, Kouji Nagata, Osamu Terashima, Takashi Kubo. (2015).
Conditional Statistics in a Planar Liquid Jet with a Second-Order Chemical Reaction.
International Journal of Heat and Mass Transfer 83.
2014
Y. Ito, Y. Sakai, K. Nagata. (2014).
Promotion of Chemical Reaction by a Grid in a Shear Mixing Layer.
Chemical Engineering and Technology 37.
T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase. (2014).
Vortex Stretching and Compression Near the Turbulent/Nonturbulent Interface in a Planar Jet.
Journal of Fluid Mechanics 758.
T. Watanabe, Y. Sakai, K. Nagata, O. Terashima. (2014).
Experimental Study on the Reaction Rate of a Second Order Chemical Reaction in a Planar Liquid Jet.
AIChE Journal 60.
T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase. (2014).
Enstrophy and Passive Scalar Transport Near the Turbulent/Non-Turbulent Interface in a Turbulent Planar Jet Flow.
Physics of Fluids 26.
T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase. (2014).
Reactive Scalar Field Near the Turbulent/ Non-Turbulent Interface in a Planar Jet with a Second-Order Chemical Reaction.
Physics of Fluids 26.
T. Takeichi, Y. Sakai, O. Terashima, K. Nagata, Y. Ito, M. Yokoi. (2014).
Experimental Study on the Schmidt Number Dependence of the Scalar Derivative Statistics in a Liquid Axisymmetric Jet.
Journal of Fluid Science and Technology 9.
T. Sawada, O. Terashima, Y. Sakai, K. Nagata, M. Shikida, Y. Ito, S. Muramatsu (2014).
On the Measurement of Wall Shear Stress with a Patch-Type Micro-Fabricated Hot-Film Sensor.
Journal of Fluid Science and Technology 9.
S. Xia, Y. Ito, K. Nagata, Y. Sakai, T. Hayase. (2014).
Numerical Study on a Boundary Layer with Heat Transfer Affected by a Wake of a Square Bar.
Journal of Fluid Science and Technology 9.
T. Naito, T. Watanabe, Y. Sakai, K. Nagata, Y. Ito. (2014).
Concentration Measurement in a Planar Liquid Jet with a Chemical Reaction by Using the Improved Concentration Measurement System Based on the Light Absorption Method.
Journal of the Japanese Society for Experimental Mechanics 9.
T. Sawada, O. Terashima, Y. Sakai, K. Nagata, M. Shikida, S. Muramatsu, Y. Ito. (2014).
Measurement of Wall Shear Stress Fluctuation with the Micro-Fabricated Hot-film Sensor in a Boundary Layer of a Wall Jet.
Journal of the Japanese Society for Experimental Mechanics 14.
T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase. (2014).
Wavelet Analysis of Coherent Vorticity near the Turbulent/Non-Turbulent Interface in a Turbulent Planar Jet.
Physics of Fluids 26.
T. Watanabe, Y. Sakai, K. Nagata, O. Terashima. (2014).
Turbulent Schmidt Number and Eddy Diffusivity Change with a Chemical Reaction.
Journal of Fluid Mechanics 754.
A. Sasoh, T. Harasaki, T. Kitamura, D. Takagi, S. Ito, A. Matsuda, K. Nagata, Y. Sakai. (2014).
Statistical Behavior of Post-Shock Overpressure Past Grid Turbulence.
Shock Waves 24.
N. Wu, Y. Sakai, K. Nagata, Y. Ito, O. Terashima, T. Hayase. (2014).
Study on the Concentration Measurement in a Liquid Jet by the Optical Fiber LIF Method.
Journal of the Japanese Society for Experimental Mechanics 14.
N. Wu, Y. Sakai, K. Nagata, Y. Ito, O. Terashima, T. Hayase. (2014).
Relevance of Turbulence behind the Single Square Grid to Turbulence Generated by Regular- and Multiscale-Grids.
Physics of Fluids 26.
N. Wu, Y. Sakai, K. Nagata, Y. Ito, O. Terashima, T. Hayase. (2014).
Influence of Reynolds Number on Coherent Structure, Flow Transition and Evolution of Plane Jet.
Journal of Fluid Science and Technology 9.
Y. Ito, K. Nagata, Y. Sakai, O. Terashima. (2014).
The Effects of Inflow Conditions on Reactive-Diffusive Mechanism in a Shear Mixing Layer at low Reynolds Number.
Experimental Thermal and Fluid Science 55.
O. Terashima, K. Onishi, Y. Sakai, K. Nagata, Y. Ito. (2014).
Simultaneous Measurement of All Three Velocity Components and Pressure in a Plane Jet.
Measurement Science and Technology 26.
Y. Zhou, K. Nagata, Y. Sakai, H. Suzuki, Y. Ito, O. Terashima, T. Hayase. (2014).
Development of Turbulence behind the Single Square Grid.
Physics of Fluids 26.
Tomoaki Watanabe, Yasuhiko Sakai, Kouji Nagata and Osamu Terashima (2014).
Turbulent Schmidt number and eddy diffusivity change with a chemical reaction.
Journal of Fluid Mechanics 754.
2013
Yasumasa Ito, Kouji Nagata, Yasuhiko Sakai, Osamu Terashima. (2013).
Momentum and mass transfer in developing liquid shear mixing layers.
Experimental Thermal and Fluid Science 51.
K. Nagata, Y. Sakai, T. Inaba, H. Suzuki, O. Terashima, H. Suzuki. (2013).
Turbulence Structure and Turbulence Kinetic Energy Transport in Multiscale / Fractal-Generated Turbulence.
Physics of Fluids.
T. Watanabe, Y. Sakai, K. Nagata, O. Terashima, H. Suzuki,T. Hayase, Y. Ito. (2013).
VISUALIZATION OF TURBULENT REACTIVE JET BY USING DIRECT NUMERICAL SIMULATION.
International Journal of Modeling, Simulation, and Scientific Computing 4.
2012
H. Suzuki, K. Nagata and Y. Sakai. (2012).
PLIF Analysis on the Fractal Dimension of High-Schmidt Number Scalar Mixing in Fractal-Generated Turbulence.
Physica Scripta.
T. Watanabe, Y. Sakai, K. Nagata and O. Terashima. (2012).
Joint statistics between velocity and reactive scalar in a turbulent liquid jet with a chemical reaction.
Physica Scripta.
T. Watanabe, Y. Sakai, K. Nagata, O. Terashima. (2012).
Simultaneous Measurements of Reactive Scalar and Velocity in a Planar Liquid Jet with a Second-Order Chemical Reaction.
Experiments in Fluids 53.
O. Terashima, Y. Sakai and K. Nagata. (2012).
Simultaneous measurement of velocity and pressure in a plane jet.
Experiments in Fluids 53.
O. Terashima, S. Izawa, A. Inasawa and Y. Fukunishi. (2012).
Streamwise interfaces of an isolated turbulent region in a laminar boundary layer.
Journal of Fluid Science and Technology 7.
Y. Ito, X. Wei, D. Desai, D. Steingart and S. Banerjee. (2012).
An indicator of zinc morphology transition in alkaline electrolyte.
Journal of Power Sources 211.
T. Kubo, Y. Fukumura, Y. Sakai, and K. Nagata. (2012).
Study on Turbulent Plane Jet with Chemical Reaction in Liquid.
Journal of Fluid Science and Technology 7.
2011
Y. Ito, M. Nyce, R. Plivelich, M. Klein and S. Banerjee. (2011).
Gas evolution in a flow-assisted zinc-nickel oxide battery.
Journal of Power Sources 196.
T. Watanabe, Y. Sakai, K. Nagata and O. Terashima. (2011).
Joint statistics between velocity and reactive scalar in a turbulent liquid jet with a chemical reaction.
Physica Scripta.
H. Suzuki, K. Nagata, Y. Sakai and T. Hayase. (2011).
DNS on a Spatially Developing Grid Turbulence.
Journal of Physics 318.
K. Nagata, J.C.R. Hunt, Y. Sakai and H. Wong. (2011).
Distorted Turbulence and Secondary Flow near Right Angled Plates.
Journal of Fluid Mechanics 669.
K. Nagata, Y. Sakai and S. Komori. (2011).
Effects of Small-Scale Freestream Turbulence on Turbulent Boundary Layers with and without Thermal Convection.
Physics of Fluids 23.
H. Suzuki, K. Nagata and Y. Sakai. (2011).
Quantitative Visualization of High-Schmidt-Number Turbulent Mixing in Grid Turbulence by means of PLIF.
Journal of Visualization 15.
Y. Ito, M. Nyce, R. Plivelich, M. Klein, D. Steingart and S. Banerjee. (2011).
Zinc morphology in zinc-nicel flow assisted batteries and impact on performance.
Journal of Power Sources 196.
2010
H. Suzuki, K. Nagata, Y. Sakai, T. Hayase. (2010).
Direct Numerical Simulation of Turbulent Mixing in Regular and Fractal Grid Turbulence.
Physica Scripta.
T. Kubo, Y. Sakai, K. Nagata and K. Iida. (2010).
Experimental Study on the Turbulent Reactive Plane Jet in Liquid.
Journal of Fluid Science and Technology 4.
2009
Y. Sakai, K. Nagata, H. Yokoi, T. Kubo and H. Shimogata. (2009).
Experimental Study on Relationships between Large-Scale Coherent Motions and Bursting Events in a Turbulent Boundary Layer.
Journal of Fluid Science and Technology 4.
2008
K. Nagata, Y. Sakai, M. Shirosawa and T. Kubo.
Active Control of an Axisymmetric Turbulent Jet Using Moving Delta Tabs (Effects of the Delta Tabs Oscillating in Phase).
Journal of Fluid Science and Technology 3.
