Gepner, S. W., Okino, S., & Kawahara, G. (2025). Streamwise-localised, symmetric invariant solutions in square-duct flow. Journal of Fluid Mechanics, 1016, A54. https://doi.org/10.1017/jfm.2025.10452

Yamamoto, T., & Okino, S. (2025). Does macroscopic mass transfer affect sonochemical reaction rate in an ultrasonic bath?. Ultrasonics Sonochemistry, 107361. https://doi.org/10.1016/j.ultsonch.2025.107361

Okino, S. (2023). Schmidt-number effects on the flow past a sphere moving vertically in a stratified diffusive fluid: Revisited. Physics of Fluids, 35(7). https://doi.org/10.1063/5.0156187

Okino, S., Akiyama, S., Takagi, K., & Hanazaki, H. (2021). Density distribution in the flow past a sphere descending in a salt-stratified fluid. Journal of Fluid Mechanics, 927, A15. https://doi.org/10.1017/jfm.2021.758

Okino, S., & Hanazaki, H. (2020). Direct numerical simulation of turbulence in a salt-stratified fluid. Journal of Fluid Mechanics, 891, A19. https://doi.org/10.1017/jfm.2020.146

Okino, S., & Hanazaki, H. (2019). Decaying turbulence in a stratified fluid of high Prandtl number. Journal of Fluid Mechanics, 874, 821-855. https://doi.org/10.1017/jfm.2019.471

Akiyama, S., Waki, Y., Okino, S., & Hanazaki, H. (2019). Unstable jets generated by a sphere descending in a very strongly stratified fluid. Journal of Fluid Mechanics, 867, 26-44. https://doi.org/10.1017/jfm.2019.123

Okino, S., Akiyama, S., & Hanazaki, H. (2017). Velocity distribution around a sphere descending in a linearly stratified fluid. Journal of Fluid Mechanics, 826, 759-780. https://doi.org/10.1017/jfm.2017.474

Hirata, M., Okino, S., & Hanazaki, H. (2017). Radiation of short waves from the resonantly excited capillary–gravity waves. Journal of Fluid Mechanics, 810, 5-24. https://doi.org/10.1017/jfm.2016.702

Hirata, M., Okino, S., & Hanazaki, H. (2015). Numerical simulation of capillary gravity waves excited by an obstacle in shallow water. Proceedings of the Estonian Academy of Sciences, 64(3), 278. https://doi.org/10.3176/proc.2015.3.11 

Okino, S., & Nagata, M. (2012). Asymmetric travelling waves in a square duct. Journal of fluid mechanics, 693, 57-68. https://doi.org/10.1017/jfm.2011.455

Okino, S., Nagata, M., Wedin, H., & Bottaro, A. (2012, April). Travelling Wave Solutions in Square Duct Flow. In Progress in Turbulence and Wind Energy IV: Proceedings of the iTi Conference in Turbulence 2010 (pp. 135-138). Berlin, Heidelberg: Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-28968-2_28

Okino, S., Nagata, M., Wedin, H., & Bottaro, A. (2010). A new nonlinear vortex state in square-duct flow. Journal of fluid mechanics, 657, 413-429.  https://doi.org/10.1017/S0022112010002806