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2022
Journal papers
- Masahito Akamine, Seiji Tsutsumi, Koji Okamoto, Susumu Teramoto, and Satoshi Nonaka, “Interpretation of Multilobe Wavepackets in Spectral Proper Orthogonal Decomposition of Supersonic Jet,” AIAA Journal, Vol. 60, No. 1, pp. 56-64, 2022
doi: 10.2514/1.J060341 - Yuma Iwamoto, Susumu Teramoto, Koji Okamoto, “Computationally Efficient Large-Eddy Simulation of Periodic Unsteady Flow using Harmonic Balance Method,” Journal of Thermal Science, Vol. 31, No. 1, pp. 62-71, 2022
doi: 10.1007/s11630-022-1559-z
Presentation
- Yuma Iwamoto, Susumu Teramoto, Koji Okamoto, “Large-Eddy Simulation of Slowly Pulsating Channel Flow Using Harmonic Balance Approach,” AIAA SciTech 2022, AIAA-2022-0773, Jan. 2022
2021
Journal paper
- Masahito Akamine, Koji Okamoto, Susumu Teramoto, Seiji Tsutsumi, “Experimental study on effects of plate angle on acoustic waves from supersonic impinging jets,” The Journal of the Acoustical Sociaty of America, Vol. 150, No. 3, pp. 1856-1865, 2021
doi: 10.1121/10.0006236
Presentations
- Ayuki Yamamura, Koji Okamoto, Susumu Teramoto, Masahito Akamine, “Optical Measurement of Supersonic Jet Noise Using 2-D Position Sensitive Detector,” Asian Joint Conference on Propulsion & Power (AJCPP), 4B2-2, Mar. 2021
- Atsushi Takemura, Shota Yamano, Koji Okamoto, Susumu Teramoto, Kazuo Yamaguchi, “Effect of Gas Supply Temperature Ratio on Wave Rotor Inlet and Outlet Port Condition,” Asian Joint Conference on Propulsion & Power (AJCPP), 5E2-2, Mar. 2021
- Y. Murata, H. Daiguji, K. Okamoto, T. Ishii, “Experimental Study on the Acoustic Field Caused by Supersonic Jet -Effect of Sound Absorbing Materials-,” Asian Joint Conference on Propulsion & Power (AJCPP), 5D3-5, Mar. 2021
- Yuma Iwamoto, Susumu Teramoto, Koji Okamoto, “Extension of Harmonic Balance Approach for Large-eddy Simulation of Unsteady Flows in Cascade,” ASME Turbo Expo 2021, GT2021-59193, Jun. 2021
- Yuma Iwamoto, Susumu Teramoto, Koji Okamoto, “Computational Efficient Large-Eddy Simulation of a Periodic Unsteady Flow using Harmonic Balance Method,” Asian Congress on Gas Turbines (ACGT) 2020, 079, Aug. 2021
2020
Journal papers
- Masashi Kurokawa, Susumu Teramoto, Koji Okamoto, “Acoustic Wave Generation from Two-Dimensional Supersonic Inviscid Jet Impinging on Inclined Plate,” AIAA Journal, Vol. 58, No. 8, pp. 3436-3445, 2020
doi: 10.2514/1.J059012 - Takahiko Toki, Susumu Teramoto, Koji Okamoto, “Velocity and Temperature Profiles in Turbulent Channel Flow at Supercritical Pressure,” Journal of Propulsion and Power, Vol. 36, No. 1, pp. 3-13, 2020
doi: 10.2514/1.B37381
Presentation
- Masahito Akamine, Seiji Tsutsumi, Koji Okamoto, Susumu Teramoto, Satoshi Nonaka, “Comparison of Modal and Conditional Analyses for Intermittent Phenomena in Jet Noise,” AIAA SciTech 2020, AIAA-2020-0997, Jan. 2020
2019
Journal papers
- Masahito Akamine, Koji Okamoto, Susumu Teramoto, Seiji Tsutsumi, “Conditional sampling analysis of high-speed schlieren movies of Mach wave radiation in a supersonic jet,” The Journal of the Acoustical Society of America, Express Letters, Vol. 145, No. 1, EL122-EL128, 2019
doi: 10.1121/1.5088493 - Tracianne B. Neilsen, Aaron B. Vaughn, Kent L. Gee, Masahito Akamine, Koji Okamoto, Susumu Teramoto, Seiji Tsutsumi, “Data-educed, broadband equivalent acoustic source model for supersonic jet noise,” The Journal of the Acoustical Society of America, Vol. 146, No. 5, pp. 3409-3424, 2019
doi: 10.1121/1.5132947
2018
Journal paper
- Masahito Akamine, Koji Okamoto, Kent L. Gee, Tracianne B. Neilsen, Susumu Teramoto, Takeo Okunuki, Seiji Tsutsumi, “Effect of Nozzle–Plate Distance on Acoustic Phenomena from Supersonic Impinging Jet,” AIAA Journal, Vol. 56, No. 5, pp. 1943-1952, 2018
doi: 10.2514/1.J056504
Presentation
- Y. Murata, K. Iwasa, T. Ishii, K. Okamoto, S. Kaneko, “Fundamental study on the acoustic fields caused by the interference of supersonic jet with a perforated plate,” 176th Meeting of the Acoustical Society of America, 1pNS8, Nov, 2018