業績リスト Achievements　桑田 准教授

著書・総説等(Book Chapters/Review Articles)

[1] 須賀　一彦，桑田　祐丞，格子ボルツマン法による乱流の数値解析，日本伝熱学会（伝熱J.HTSJ）５５巻14-21（2016）.

英文学術雑誌論文(English Journal Papers)

[1] K. Suga, Y. Ishibashi, Y. Kuwata, “An analytical wall-function for recirculating and impinging turbulent heat transfer”, International Journal of Heat and Fluid Flow, vol.41, pp. 45-54, (2013.06).

[2] Y. Kuwata, K. Suga, “Modelling Turbulence in Porous Media Based on the Second Moment Closure”, International Journal of Heat and Fluid Flow, vol.43, pp.35-51, (2013.10).

[3] K. Suga, Y. Kuwata, “Turbulence over/inside porous surface and challenges to its modelling”, Journal of Physics: Conference series, vol.530, 12004, (2014.8).

[4] Y. Kuwata, K. Suga, Y. Sakurai, “Development and application of a multi-scale k-ε model for turbulent porous medium flows”, International Journal of Heat and Fluid flow, vol.49, pp.135-150, (2014.10).

[5] Y. Kuwata, K. Suga, “Porous medium modelling of turbulent heat transfer in square rod arrays with a multi-scale second moment closure”, Special Topics & Reviews in Porous Media, vol.6 (2), pp.173-184, (2015) in press, doi: 10.1615/.2015012377.

[6] Y. Kuwata and K. Suga, “Anomaly of the lattice Boltzmann methods in three dimensional cylindrical flows”, Journal of Computational Physics, vol.280, pp.563-569 (2015.01).

[7] Y. Kuwata, K. Suga, “Progress in the extension of a second-moment closure for turbulent environmental flows”, International Journal of Heat and Fluid Flow, vol.51, pp.268-284 (2015.02).

[8] K. Suga, Y. Kuwata, K. Takashima, R. Chikasue, “A D3Q27 multiple-relaxation-time lattice Boltzmann method for turbulent flows”, Computers & Mathematics with Applications, vol.69, pp.518-529, (2015.03).

[9] Y. Kuwata, K. Suga, “Large eddy simulations of pore-scale turbulent flows in porous media by the lattice Boltzmann method”, International Journal of Heat and Fluid Flow, vol.55, pp.143-157, 2015.

[10] Y. Kuwata, K. Suga, “Imbalance-correction grid-refinement method for lattice Boltzmann flow simulations”, Journal of Computational Physics, Vol. 311, pp. 348–362, 2016.

[11] Y.Kuwata, K. Suga, “Lattice Boltzmann direct numerical simulation of interface turbulence over porous and rough walls”, International Journal of Heat and Fluid Flow, Vol.61, pp.145-157.

[12] Y.Kuwata, K. Suga, “Transport Mechanism of Interface Turbulence over Porous and Rough Walls”, Flow Turbulence and Conbustion, Vol.97.pp.1071-2093 (2016).

[13] K. Suga, R.Chikasue, Y. Kuwata, “Modelling turbulent and dispersion heat fluxes in turbulent porous medium flows using the resolved LES data”, International Journal of Heat and Fluid Flow, Vol.68, pp.225-236 (2017).

[14] Y. Kuwata, K. Suga, “Direct numerical simulation of turbulence over anisotropic porous media”, Journal of Fluid Mechanics, Vol.831, pp.41-71 (2017).

[15] K. Suga, Y. Okazaki, U. Ho, Y. Kuwata "Anisotropic wall permeability effects on turbulent channel flows", Journal of Fluid Mechanics Vol.855, pp.983-1016 (2018).

[16] Y. Kuwata, Y. Kawaguchi, "Statistical discussions on skin frictional drag of turbulence over randomly distributed semi-spheres", International Journal of Advances in Engineering Sciences and Applied Mathematics, Vol.10-4, pp.263-272 (2018).

[17] Y. Kuwata, Y. Kawaguchi, "Direct numerical simulation of turbulence over systematically varied irregular rough surfaces", Journal of Fluid Mechanics Vol.862, pp.781-815(2018).

[18] Y. Kuwata, Y. Kawaguchi, "Direct numerical simulation of turbulence over resolved and modeled rough walls with irregularly distributed roughness", International Journal of Heat and Fluid Flow Vol.77, pp.1-18 (2019).

[19] Y. Kuwata, K. Suga, Y. Kawaguchi, "An extension of the second moment closure model for turbulent flows over macro rough walls", International Journal of Heat and Fluid Flow Vol.77, pp.186-201 (2019).

[20] K. Suga, T. Sakamoto, Y. Kuwata, "Algebraic non-equilibrium wall-stress modeling for large eddy simulation based on analytical integration of the thin boundary-layer equation", Physics of Fluids 31 (7), 075109 (2019).

[21] Y. Kuwata, K. Suga, "Extensive investigation of the influence of wall permeability on turbulence", International Journal of Heat and Fluid Flow Vol.80, 108465 (2019).

[22] Y. Nishiyama, Y. Kuwata, K. Suga, “Direct numerical simulation of turbulent heat transfer over fully resolved anisotropic porous structures“, International Journal of Heat and Fluid Flow 81, 108515 (2020).

[23] K. Suga, Y. Okazaki, Y. Kuwata, “Characteristics of turbulent square duct flows over porous media", Journal of Fluid Mechanics 884 (2020).

[24] Y Okazaki, A Shimizu, Y Kuwata, K Suga, “Turbulence characteristics over k-type rib roughened porous walls", International Journal of Heat and Fluid Flow 82, 108541 (2020).

[25] Y. Kuwata, K. Tsuda, K. Suga, “Direct numerical simulation of turbulent conjugate heat transfer in a porous-walled duct flow” Journal of Fluid Mechanics 904 (2020).

[26] Y. Kuwata, T. Sugiyama, Y. Kawaguchi, “On the scaling of turbulence over an irregular rough surface in a transitionally rough regime”, Journal of Thermal Science and Technology 15(2), JTST0015-JTST0015 (2020).

[27] Y. Kuwata, R. Nagura, “Direct numerical simulation on the effects of surface slope and skewness on rough-wall turbulence”. Physics of Fluids 32(10), 105113 (2020).

[28] Y. Kuwata, K. Suga, “Wall-modeled large eddy simulation of turbulent heat transfer by the lattice Boltzmann method", Journal of Computational Physics 433, 110186 (2021).

[29] Y Okazaki, Y Takase, Y Kuwata, K Suga, “Describing characteristic parameters of turbulence over two-dimensional porous roughness", Journal of Thermal Science and Technology 16 (2), JTST0027-JTST0027(2021).

[30] Y Kuwata “Direct numerical simulation of turbulent heat transfer on the Reynolds analogy over irregular rough surfaces", International Journal of Heat and Fluid Flow 92, 108859 (2021).

[31] R Nagura, Y Kuwata, K Suga “Dissimilarity Between Heat and Momentum Transfer of Turbulent Heat Transfer over Surfaces with Hemisphere Protrusions", iTi Conference on Turbulence, 115-121 (2021).

[32] Y Okazaki, Y Takase, Y Kuwata, K Suga “Turbulent channel flows over porous rib-roughed walls", Experiments in Fluids 63 (4), 1-20 (2022).

[33] Y Kuwata "Reynolds number dependence of turbulent heat transfer over irregular rough surfaces", Physics of Fluids 34, 045118 (2022).

[34] Y Kuwata "Role of spanwise rollers by Kelvin–Helmholtz instability in turbulence over a permeable porous wall" Physical Review Fluids 7 (8), 084606 (2022).

[35] Y Kuwata "Dissimilar turbulent heat transfer enhancement by Kelvin–Helmholtz rollers over high-aspect-ratio longitudinal ribs", Journal of Fluid Mechanics 952, A21 (2022).

[36] Y Kuwata, Y Yamamoto, S Tabata, K Suga "Scaling of the roughness effects in turbulent flows over systematically-varied irregular rough surfaces", International Journal of Heat and Fluid Flow 101, 109130 (2023).

邦文学術雑誌論文(Japanese Journal Papers)

[1] 桑田祐丞，須賀一彦, 正方形角柱群内乱流のLESによる体積平均乱流輸送方程式の考察, 日本機械学会論文集 79 巻 805 号 p. 1752-1763 (2013)

[2] 名倉 梨花, 桑田 祐丞, 須賀 一彦，半球粗さ群が乱流熱流動場に与える影響の直接数値解析，日本機械学会論文集 86 巻 891 号 p. 20-00289(2020)