Publications

① 学術論文（査読あり）

1.  T. Ukai, T. Kishida, R. Takioka, "Flow structure manipulation in a supersonic jet impinging on a perpendicular flat plate with varied fluidic injection angles," Journal of Aerospace Engineering 8 (5), (2025). https://doi.org/10.1061/JAEEEZ.ASENG-6211

2.  R. Iura, T. Ukai, H. Yamashita, B. Kern, T. Misaka, S. Obayashi, “Impact of atmospheric variations on sonic boom loudness over 10 years of simulated flights,” The Journal of the Acoustical Society of America 156 (3), pp.1529-1542 (2024). https://doi.org/10.1121/10.0028375

3.  T. Ukai, S. Subramanian, A. Wilson, B. Craig, K. Kontis, “Initial particle ejection behaviours due to a hypersonic jet impingement at different high-nozzle pressure ratios in rarefied atmospheric conditions,” Acta Astronautica 222, pp.126-135 (2024). https://doi.org/10.1016/j.actaastro.2024.06.009

4.  K. Ota, T. Ukai, T. Wakai, “Spatial resolution improvement by a super-resolution technique depending on training process in the Background-Orientated Schlieren analyses,” Physics of Fluids 35 126103 (2023). https://doi.org/10.1063/5.0174753

5.  R. Hata, T. Ukai, R. Takioka, “The particle erosion and diffusion behaviours due to an air-jet impingement on a granular bed covering a simplified terrain model,” Acta Astronautica 202, pp.535-549 (2023). https://doi.org/10.1016/j.actaastro.2022.11.017

6.  T. Ukai, T. Kuroda, “Flexibility and versatility enhancements due to a portable optical system for the Background-Oriented Schlieren techniques,” Journal of Visualization 26, pp.551–561 (2023), https://doi.org/10.1007/s12650-022-00903-1.

7.  T. Ukai, “Quantitative investigation of a schlieren velocimetry technique by a schlieren motion estimation (SME) method,” Physics of Fluids 34, 076113 (2022). https://doi.org/10.1063/5.0096939

8.  M. Kobayashi, T. Ukai, “Effectiveness of a supersonic jet-jet interaction technique on flow structure in an underxepanded jet impinging on a perpendicular plate,” Acta Astronautica 195, pp.163-168 (2022). https://doi.org/10.1016/j.actaastro.2022.03.010

9.  T. Ukai, “The principle and characteristics of an image fibre Background Oriented Schlieren (Fibre BOS) technique for time-resolved three-dimensional unsteady density measurements,” Experiments in Fluids 60:170 (2021). https://doi.org/10.1007/s00348-021-03251-2

10.  T. Ukai, K. Kontis, “Thermal fluctuation characteristics around a nanosecond pulsed dielectric barrier discharge plasma actuator using a frequency analysis based on Schlieren images,” Energies, Vol. 13 (3), 628 (2020). https://doi.org/10.3390/en13030628

11.  G. Li, T. Ukai, K. Kontis, “Characterization of a novel open-ended shock tube facility based on detonation transmission tubing,” Aerospace Science and Technology 94, 105388 (2019). https://doi.org/10.1016/j.ast.2019.105388

12.  M.M Wojewodka, C. White, T. Ukai, A. Russell, K. Kontis “Pressure dependency on a nanosecond pulsed dielectric barrier discharge plasma actuator,” Physics of Plasmas 26, 063512 (2019). https://doi.org/10.1063/1.5092703

13.  T. Ukai, A. Russell, H. Zare-Behtash, K. Kontis, “Temporal variation of the spatial density distribution above a nanosecond pulsed dielectric barrier discharge plasma actuator in quiescent air,” Physics of Fluids 30, 116106 (2018). https://doi.org/10.1063/1.5054263

14.  T. Ukai, K. Kontis, L. Yang, “Flow structure generated by laser-induced blast wave propagation through the boundary layer of a flat plate,” Aerospace Science and Technology 78, pp.569-573 (2018). https://doi.org/10.1016/j.ast.2018.05.012

15.  T. Ukai, H. Zare-Behtash, K. Kontis, “Suspended liquid particle disturbance on laser-induced blast wave,” Physics of Fluid 29, 126104 (2017). https://doi.org/10.1063/1.4999042

16.  T. Ukai, H. Zare-Behtash, K. Kontis, L. Yang, E. Erdem, “Experimental investigation of surface flow pattern on truncated cones in Mach 5 flow: influence of truncation ration,” Experimental Thermal and Fluid Science 81, pp. 396-405 (2017). https://doi.org/10.1016/j.expthermflusci.2016.09.016

17.  T. Ukai, K. Ohtani, S. Obayashi, “Turbulent jet interaction with a long rise-time pressure signature,” Applied Acoustics 114, pp. 179-190 (2016). https://doi.org/10.1016/j.apacoust.2016.07.015

18.  T. Ukai, H. Zare-Behtash, K. Kontis, S. Obayashi, “Three-dimensional shock wave distortion in shock-square vortex loop interaction,” Experimental Thermal and Fluid Science 79, pp. 85-90 (2016). https://doi.org/10.1016/j.expthermflusci.2016.06.028

19.  H. Zare-Behtash, K.H. Lo, K. Kontis, T. Ukai, S. Obayashi, “Transverse jet-cavity interactions with the influence of an impinging shock,” International Journal of Heat and Fluid Flow 53, pp. 146-155 (2015). https://doi.org/10.1016/j.ijheatfluidflow.2015.03.004

20.  T. Ukai, K. Ohtani, S. Obayashi, “Validation of measurement accuracy for near–field pressure of supersonic projectiles in a ballistic range,” Measurement 67, pp. 24-33 (2015). https://doi.org/10.1016/j.measurement.2015.01.031

21.  T. Ukai, H. Zare-Behtash, K. H. Lo, K. Kontis, S. Obayashi, “Effects of dual jets distance on mixing characteristic and flow path within a cavity in supersonic crossflow,” International Journal of Heat and Fluid Flow 50, pp. 254-262 (2014). https://doi.org/10.1016/j.ijheatfluidflow.2014.08.009

22.  H. Zare-Behtash, K. H. Lo, T. Ukai, K. Kontis, S. Obayashi, “Experimental investigation of impinging shock ­cavity interactions with upstream transverse jet injection,” Transactions of JSASS 12 No. ists29, pp. 57-62 (2014). https://doi.org/10.2322/tastj.12.Pe_57

23.  T. Ukai, H. Zare-Behtash, E. Erdem, K. H. Lo, K. Kontis, S. Obayashi, “Effectiveness of jet location on mixing characteristics inside a cavity in supersonic flow,” Experimental Thermal and Fluid Science 52, pp. 59-67 (2014). https://doi.org/10.1016/j.expthermflusci.2013.08.022

24.  T. Ukai, T. Kikuchi, K. Ohtani, S. Obayashi, “Simultaneous visualization of surface and flow field for a projectile,” Journal of Visualization 16 (4), pp. 331-340 (2013). https://doi.org/10.1007/s12650-013-0174-1

② 国際会議論文

1. M. Kobayashi, T. Ukai, “Surface and spatial flow structure of an underexpanded jet with vertical jet interactions impinging on perpendicular and inclined plates,” AIAA paper, AIAA 2022-2582 (2021).

2. G. Li, M. BurakAgir, K. Kontis, T. Ukai, S. Rengarajan, “Image Processing Techniques for Shock Wave Detection and Tracking in High Speed Schlieren and Shadowgraph Systems, Journal of Physics: Conference Series Vol 1215, 012021 (2019).

3. T. Ukai, H. Zare-Behtash, C. White, K. Kontis, “Effect of impurity on laser-induced gas breakdown in quiescent gas: experimental and numerical investigations,” ISSW31 Vol. 2, Conference proceedings, Springer, pp.9-16 (2019).

4. T. Ukai, H. Zare-Behtash, K. Kontis, S. Obayashi, “Experimental investigations of three-dimensional shock-vortex loop interaction: Shock reflection and diffraction phenomena,” ISSW30 Vol. 2, Conference proceedings, Springer, pp.1127-1132 (2017).

5. T. Ukai, H. Zare-Behtash, K. H. Lo, K. Kontis, S. Obayashi, “Experimental study of dual injections with a cavity in supersonic flow.” ISSW29 Vol. 2, Conference proceedings, Springer, pp.1175-1180 (2015).

6. H. Zare-Behtash, K. H. Lo, E. Erdem, K. Kontis, J. Lin, T. Ukai, S. Obayashi, “Incident shock –transverse jet interactions at Mach 1.9: Effect of shock impingement location,” ISSW29 Vol. 2, Conference proceedings, Springer, pp.1181-1186 (2015).

7. Y. Saito, T. Ukai, K. Miyakoshi, K. Ohtani, S. Obayashi, “Sonic boom estimation using the multipole method for free-flight experiments,” AIAA Science and Technology Forum and Exposition 2014, AIAA-2014-0368 (2014).