Papers - KAWAHARA Nobuyuki
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Effect of swirl flow on the main chamber combustion dynamics of methane in a passive pre-chamber spark ignition engine
MD. Tanvir Khan, Nobuyuki Kawahara, Yoshimitsu Kobashi, Isao Yamane, Towa Hirayama, Ayumi Shimizu, Sekai Miyamoto
Fuel 391 134735 - 134735 2025.7
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Development of Ignitability Evaluation Index by Optical Combustion Analyzer
Nayuha Moriguchi, Yoshimitsu Kobashi, Nobuyuki Kawahara, Masahide Takagi, Satoshi Kawauchi
The 28th Small Powertrains and Energy Systems Technology Conference (SETC 2024), Poster 2024.11
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Improvement of Lean Burn Characteristics with Ozone Addition in a Diesel Micro-Pilot Natural Gas Engine Reviewed
Yoshimitsu Kobashi, Shoki Miyata, Nobuyuki Kawahara, Ryuya Inagaki
The 28th Small Powertrains and Energy Systems Technology Conference (SETC 2024), JSAE 20249104/ SAE 2024-32-0104 2024.11
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Hydrogen concentration measurements using spark induced breakdown spectroscopy in a real engine Reviewed
Dongchan Kim, Quancen Wan, Qing Nian Chan, Yoshimitsu Kobashi, Nobuyuki Kawahara, Sanghoon Kook
Proceedings of the Combustion Institute 40 ( 1-4 ) 105209 - 105209 2024.6
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Droplet diameter and axial velocity measurements near a nozzle exit of an automotive fuel injector using PDA Invited
Nobuyuki Kawahara
2023.10
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Visualization of Combustion and Flow Phenomena in a Methane-Fueled Passive Pre-Chamber Ignited Gas Engine Reviewed
MD Tanvir KHAN, Nobuyuki Kawahara, Yoshimitsu Kobashi, Towa Hirayama, Ayumi Shimizu, Sekai Miyamoto
2023 JSAE/SAE Powertrains, Energy and Lubricants Int. Meeting, JSAE 20239119, SAE 2023-32-0057 2023.8
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PREMIER Combustion of Natural Gas Ignited with Diesel Fuel in a Dual Fuel Engine - Effects of EGR and Supercharging on End-gas Auto Ignition and Thermal Efficiency- Reviewed
Yoshimitsu Kobashi, Kengo Kishimoto, Nobuyuki Kawahara
2023 JSAE/SAE Powertrains, Energy and Lubricants Int. Meeting, JSAE 20239121, SAE 2023-32-0016 2023.8
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Spatially and temporally resolved plasma formation on alumina target in microwave-enhanced laser-induced breakdown spectroscopy Reviewed
Yuji Ikeda, Joey Kim Soriano, Nobuyuki Kawahara, Ikuo Wakaida
Spectrochimica Acta Part B: Atomic Spectroscopy 197 106533 - 106533 2022.11
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Evaluation of ignition characteristics of diesel spray using large eddy simulation Reviewed
Nobuyuki Kawahara
22nd Annual Conference on Liquid Atomization and Spray Systems-ILASS-Asia 2022, Paper No. 40 2022.10
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Plasma formation and its sustainment in time and space in microwave enhanced laser induced breakdown spectroscopy Reviewed
Yuji Ikeda, Joey Kim Soriano, Nobuyuki Kawahara
20th Int. Symp. on the Application of Laser and Imaging Techniques on Fluid Mechanics (LISBON) 2022.7
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Spark-induced breakdown spectroscopy in a direct-injected natural gas spark-ignition engine Reviewed
Nobuyuki Kawahara, Kohei Miyao
20th Int. Symp. on the Application of Laser and Imaging Techniques on Fluid Mechanics (LISBON) 2022.7
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Visualization of End-gas Auto-ignition during PREMIER Combustion in a Dual-fuel Gas Engine Reviewed
Nobuyuki Kawahara, Eiji Tomita
The 10th International Conference on Modeling and Diagnostics for Advanced Engine Systems (COMODIA 2022), C9-3 2022.7
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Yuji Ikeda, Nobuyuki Kawahara
Energies 15 ( 9 ) 3053 - 3053 2022.4
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PREMIER combustion characteristics of a pilot fuel-ignited dual-fuel biogas engine with consideration of cycle-to-cycle variations Reviewed
Taku Imamoto, Nobuyuki Kawahara, Eiji Tomita
Fuel 314 123049 - 123049 2022.4
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Y. Tomomatsu, N. Kawahara, E. Tomita
International Journal of Environmental Science and Technology 20 ( 1 ) 477 - 488 2022.3
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Droplet diameter measurement near a nozzle exit of a common-rail Diesel injector using PDA Reviewed International journal
Nobuyuki Kawahara, Rikuya Yamada, Eiji Tomita
15th International Conference on Liquid Atomization and Spray Systems, ICLASS2021, Paper No. 247 2021.8
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Differences between PREMIER combustion in a dual-fuel gas engine and knocking with pressure oscillations Invited
Nobuyuki Kawahara
7th International Seminar on Motor Vehicle Environmental Protection 2021.7
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Performance, emissions and end-gas autoignition characteristics of PREMIER combustion in a pilot fuel-ignited dual-fuel biogas engine with various CO2 ratios Reviewed International journal
Alireza Valipour Berenjestanaki, Nobuyuki Kawahara, Kazuya Tsuboi, Eiji Tomita
Fuel 286 119330 - 119330 2021.2
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Multidimensional CFD Simulation of PAH Formation Process in Diesel Spray Combustion Reviewed
Nobuyuki Kawahara, Hirotomo Daido, Eiji Tomita
21st Annual Conference on Liquid Atomization and Spray Systems-ILASS-Asia 2020, ILASS-Asia2020-3-12 2020.10
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Quantitative evaluation of liquid film formation process from DISI injector using LIF method Reviewed
Yasutaka Tomomatsu, Nobuyuki Kawahara, Eiji Tomita
21st Annual Conference on Liquid Atomization and Spray Systems-ILASS-Asia 2020, ILASS-Asia2020-3-11 2020.10