Koji Fukagata

2021

Convolutional neural network and long short-term memory based reduced order surrogate for minimal turbulent channel flow

Nakamura, T., Fukami, K., Hasegawa, K., Nabae, Y. & Fukagata, K., 2021 2 1, In: Physics of Fluids. 33, 2, 025116.

研究成果: Article › 査読

2020

Assessment of supervised machine learning methods for fluid flows

Fukami, K., Fukagata, K. & Taira, K., 2020 8 1, In: Theoretical and Computational Fluid Dynamics. 34, 4, p. 497-519 23 p.

研究成果: Article › 査読

14 被引用数 (Scopus)

CNN-LSTM based reduced order modeling of two-dimensional unsteady flows around a circular cylinder at different Reynolds numbers

Hasegawa, K., Fukami, K., Murata, T. & Fukagata, K., 2020 12, In: Fluid Dynamics Research. 52, 6, 065501.

研究成果: Article › 査読

4 被引用数 (Scopus)

Convolutional neural network based hierarchical autoencoder for nonlinear mode decomposition of fluid field data

Fukami, K., Nakamura, T. & Fukagata, K., 2020 9 1, In: Physics of Fluids. 32, 9, 095110-1.

研究成果: Article › 査読

11 被引用数 (Scopus)

Experimental investigation on friction drag reduction on an airfoil by passive blowing

Hirokawa, S., Eto, K., Fukagata, K. & Tokugawa, N., 2020, In: Journal of Fluid Science and Technology. 15, 2, 0011.

研究成果: Article › 査読

Open Access

3 被引用数 (Scopus)

Machine-learning-based reduced-order modeling for unsteady flows around bluff bodies of various shapes

Hasegawa, K., Fukami, K., Murata, T. & Fukagata, K., 2020 8 1, In: Theoretical and Computational Fluid Dynamics. 34, 4, p. 367-383 17 p.

研究成果: Article › 査読

12 被引用数 (Scopus)

Machine-learning-based spatio-temporal super resolution reconstruction of turbulent flows

Fukami, K., Fukagata, K. & Taira, K., 2020, In: Journal of Fluid Mechanics. 909, A9.

研究成果: Article › 査読

Open Access

1 被引用数 (Scopus)

Nonlinear mode decomposition with convolutional neural networks for fluid dynamics

Murata, T., Fukami, K. & Fukagata, K., 2020, In: Journal of Fluid Mechanics. 882, A13.

研究成果: Article › 査読

23 被引用数 (Scopus)

Parametric study toward optimization of blowing and suction locations for improving lift-to-drag ratio on a Clark-Y airfoil

Ohashi, M., Morita, Y., Hirokawa, S., Fukagata, K. & Tokugawa, N., 2020, In: Journal of Fluid Science and Technology. 15, 2, 0008.

研究成果: Article › 査読

Open Access

1 被引用数 (Scopus)

Prediction of drag reduction effect by streamwise traveling wave-like wall deformation in turbulent channel flow at practically high Reynolds numbers

Nabae, Y., Kawai, K. & Fukagata, K., 2020 4, In: International Journal of Heat and Fluid Flow. 82, 108550.

研究成果: Article › 査読

1 被引用数 (Scopus)

Probabilistic neural networks for fluid flow surrogate modeling and data recovery

Maulik, R., Fukami, K., Ramachandra, N., Fukagata, K. & Taira, K., 2020 10, In: Physical Review Fluids. 5, 10, 104401.

研究成果: Article › 査読

7 被引用数 (Scopus)

Resolvent analysis of turbulent channel flow with manipulated mean velocity profile

Uekusa, R., Kawagoe, A., Nabae, Y. & Fukagata, K., 2020, In: Journal of Fluid Science and Technology. 15, 3, p. 1-10 10 p.

研究成果: Article › 査読

Open Access

2019

Assessment of friction drag reduction on a clark-Y airfoil by uniform blowing

Eto, K., Kondo, Y., Fukagata, K. & Tokugawa, N., 2019, In: AIAA journal. 57, 7, p. 2774-2782 9 p.

研究成果: Article › 査読

9 被引用数 (Scopus)

Near-surface electron transport and its influence on the discharge structure of nanosecond-pulsed dielectric-barrier-discharge under different electrode polarities

Hua, W. & Fukagata, K., 2019 1 1, In: Physics of Plasmas. 26, 1, 013514.

研究成果: Article › 査読

8 被引用数 (Scopus)

Numerical simulation of parallel-plate particle separator for estimation of charge distribution of PM2.5

Yonemichi, T., Fukagata, K., Fujioka, K. & Okuda, T., 2019 4 3, In: Aerosol Science and Technology. 53, 4, p. 394-405 12 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Proposal of control laws for turbulent skin friction reduction based on resolvent analysis

Kawagoe, A., Nakashima, S., Luhar, M. & Fukagata, K., 2019 5 10, In: Journal of Fluid Mechanics. 866, p. 810-840 31 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

Reconsideration of spanwise rotating turbulent channel flows via resolvent analysis

Nakashima, S., Luhar, M. & Fukagata, K., 2019 2 25, In: Journal of Fluid Mechanics. 861, p. 200-222 23 p.

研究成果: Article › 査読

2 被引用数 (Scopus)

Seasonal variation in atmospheric particle electrostatic charging states determined using a parallel electrode plate device

Iwata, A., Fujioka, K., Yonemichi, T., Fukagata, K., Kurosawa, K., Tabata, R., Kitagawa, M., Takashima, T. & Okuda, T., 2019 4 15, In: Atmospheric Environment. 203, p. 62-69 8 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

Super-resolution reconstruction of turbulent flows with machine learning

Fukami, K., Fukagata, K. & Taira, K., 2019 7 10, In: Journal of Fluid Mechanics. 870, p. 106-120 15 p.

研究成果: Article › 査読

52 被引用数 (Scopus)

Synthetic turbulent inflow generator using machine learning

Fukami, K., Nabae, Y., Kawai, K. & Fukagata, K., 2019 6 4, In: Physical Review Fluids. 4, 6, 064603.

研究成果: Article › 査読

22 被引用数 (Scopus)

2018

Core position alignment in polymer optical waveguides fabricated using the Mosquito method

Date, K., Fukagata, K. & Ishigure, T., 2018 6 11, In: Optics Express. 26, 12, p. 15632-15641 10 p.

研究成果: Article › 査読

4 被引用数 (Scopus)

Extension of the unified interpolation stencil for immersed boundary method for moving boundary problems

Kor, H., Ghomizad, M. B. & Fukagata, K., 2018, In: Journal of Fluid Science and Technology. 13, 2, 18-00167.

研究成果: Article › 査読

Influence of grid resolution in fluid-model simulation of nanosecond dielectric barrier discharge plasma actuator

Hua, W. & Fukagata, K., 2018 4 1, In: AIP Advances. 8, 4, 045209.

研究成果: Article › 査読

9 被引用数 (Scopus)

2017

Assessment of suboptimal control for turbulent skin friction reduction via resolvent analysis

Nakashima, S., Fukagata, K. & Luhar, M., 2017 10 10, In: Journal of Fluid Mechanics. 828, p. 496-526 31 p.

研究成果: Article › 査読

13 被引用数 (Scopus)

A unified interpolation stencil for ghost-cell immersed boundary method for flow around complex geometries

Kor, H., Badri Ghomizad, M. & Fukagata, K., 2017, In: Journal of Fluid Science and Technology. 12, 1

研究成果: Article › 査読

9 被引用数 (Scopus)

Drag-reducing performance of obliquely aligned superhydrophobic surface in turbulent channel flow

Watanabe, S., Mamori, H. & Fukagata, K., 2017 1 17, In: Fluid Dynamics Research. 49, 2, 025501.

研究成果: Article › 査読

6 被引用数 (Scopus)

Drag reduction capability of uniform blowing in supersonic wall-bounded turbulent flows

Kametani, Y., Kotake, A., Fukagata, K. & Tokugawa, N., 2017 12, In: Physical Review Fluids. 2, 12, 123904.

研究成果: Article › 査読

8 被引用数 (Scopus)

Heat transfer in fully developed turbulent channel flow with streamwise traveling wave-like wall deformation

Uchino, K., Mamori, H. & Fukagata, K., 2017, In: Journal of Thermal Science and Technology. 12, 1, JTST0003.

研究成果: Article › 査読

5 被引用数 (Scopus)

Numerical simulation and sensitivity analysis of a low-Reynolds-number flow around a square cylinder controlled using plasma actuators

Anzai, Y., Fukagata, K., Meliga, P., Boujo, E. & Gallaire, F., 2017 4, In: Physical Review Fluids. 2, 4, 043901.

研究成果: Article › 査読

5 被引用数 (Scopus)

Towards a theoretical model of heat transfer for hot-wire anemometry close to solid walls

Ikeya, Y., Örlü, R., Fukagata, K. & Alfredsson, P. H., 2017 12, In: International Journal of Heat and Fluid Flow. 68, p. 248-256 9 p.

研究成果: Article › 査読

12 被引用数 (Scopus)

Turbulent Drag Reduction by Uniform Blowing Over a Two-dimensional Roughness

Mori, E., Quadrio, M. & Fukagata, K., 2017 12 1, In: Flow, Turbulence and Combustion. 99, 3-4, p. 765-785 21 p.

研究成果: Article › 査読

3 被引用数 (Scopus)

2016

A Linearized k- ϵ Model of Forest Canopies and Clearings

Segalini, A., Nakamura, T. & Fukagata, K., 2016 12 1, In: Boundary-Layer Meteorology. 161, 3, p. 439-460 22 p.

研究成果: Article › 査読

5 被引用数 (Scopus)

Drag reduction in spatially developing turbulent boundary layers by spatially intermittent blowing at constant mass-flux

Kametani, Y., Fukagata, K., Örlü, R. & Schlatter, P., 2016 10 2, In: Journal of Turbulence. 17, 10, p. 913-929 17 p.

研究成果: Article › 査読

8 被引用数 (Scopus)

2015

Effect of uniform blowing/suction in a turbulent boundary layer at moderate Reynolds number

Kametani, Y., Fukagata, K., Örlü, R. & Schlatter, P., 2015 10 1, In: International Journal of Heat and Fluid Flow. 55, p. 132-142 11 p.

研究成果: Article › 査読

48 被引用数 (Scopus)

Effects of wall temperature on skin-friction measurements by oil-film interferometry

Bottini, H., Kurita, M., Iijima, H. & Fukagata, K., 2015 8 26, In: Measurement Science and Technology. 26, 10, 105301.

研究成果: Article › 査読

8 被引用数 (Scopus)

2014

A basic study on aerodynamic noise reduction techniques for a pantograph head using plasma actuators

Mitsumoji, T., Sato, Y., Ikeda, M., Sueki, T. & Fukagata, K., 2014 8 1, In: Quarterly Report of RTRI (Railway Technical Research Institute). 55, 3, p. 184-189 6 p.

研究成果: Article › 査読

Open Access

10 被引用数 (Scopus)

Active control of vortex shedding: An explanation of the gain window

Illingworth, S. J., Naito, H. & Fukagata, K., 2014 10 21, In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 90, 4, 043014.

研究成果: Article › 査読

17 被引用数 (Scopus)

Aerodynamic noise reduction of a pantograph panhead by applying a flow control method

Mitsumoji, T., Sueki, T., Yamazaki, N., Sato, Y., Ikeda, M., Takinami, R., Gejima, H. & Fukagata, K., 2014, In: Notes on Numerical Fluid Mechanics and Multidisciplinary Design. 126, p. 515-522 8 p.

研究成果: Article › 査読