Kyushu University [Nagano Yukihide (Assistant Professor) Faculty of Engineering, Department of Mechanical Engineering]

Department of Mechanical Engineering Science
Graduate School of Engineering

Department of Mechanical and Aerospace Engineering
School of Engineering

092-802-3150

092-802-0001

Master of Engineering

Combustion, Reactive Gas Dynamics, Internal Combustion Engines, Thermodynamics

[Reseach Topics]
　・Fundamental Study on Knock Phenomena
　・Combustion Properties of Premixed Laminar Flame Using Spherically Propagating Flame
　・Combustion Properties of Premixed Turbulent Flame

Research Interests

Enhancement of Turbulent Combustion under Super Lean and High EGR Conditions
keyword : High Efficiency Gasoline Engine, Combustion Enhancement, Turbulent Flame Propagation, Quenching
2014.10.
Experimantal analyses of knock phenomena
keyword : Nock, Auto-ignition, Premixed Flame Propagation
2009.08.
Effects of Pressure on Premixed Turbulent Flames
keyword : Premixed Flame Propagation, Flame Stretch, Markstein Length, Turbulent Flame
2002.04.
Effects of Pressure on Flame Instability of Premixed Flame
keyword : Premixed Flame Propagation, Flame Stretch, Markstein Length, Flame Instability, Thermo-diffusive Effects
2002.04.
Effects of Pressure on Burning Velocity and its Variation by Flame Stretch of Laminar Premixed Flame
keyword : Premixed Flame Propagation, Flame Stretch, Markstein Length, Laminar Premixed Flame, Thermo-diffusive Effects
2002.04.
Effects of Mixture Dilution on Premixed Flame

keyword : Premixed Flame, Quench, Flame Propagation, MIxture Dilution, Flame Stretch, Markstein Length, Flame Instability, Thermo-diffusive Effects
2009.08.
Study on Combustion of Coal Gasification Gas
keyword : Coal gasification gas, Combustion, Hydrogen, Cabon monoxide, Co2 dilution
2009.08.

Academic Activities

Papers

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1.	Yukihide Nagano, Akihiro Tsuda, Akira Noomo, Takuya Fukushima, Masayoshi Morita, Toshiaki Kitagawa, Study on Factors Affecting Shape Characteristics of Spherically Propagating i-C8H18/O2/N2 Turbulent Flames Using Constant Volume Vessel, The Ninth INTERNATIONAL CONFERENCE ON MODELING AND DIAGNOSTICS FOR ADVANCED ENGINE SYSTEMS, 2017.07.
2.	Ekenechukwu Okafor, Yukihide Nagano, Toshiaki Kitagawa, Experimental and Theoretical Analysis of Cellular Instability in Lean H2-CH4-Air Flames at Elevated Pressures, International Journal of Hydrogen Energy, 41, 6581-6592, 2016.03.
3.	Yukihide Nagano, Toshiaki Kitagawa, Atsushi Ohta, Shiro Takakura, Yutaka Tajima, Nobu Takahashi, Influences of Turbulence Scale on Development of Spherically Propagating Flame under High EGR Conditions, SAE 2015 International Powertrain, Fuels & Lubricants Meeting, JSAE 20159112, SAE 2015-01-1868, 2015.09.
4.	Yukihide Nagano, Toshiaki Kitagawa, Observation of flame propagation and knock in a constant volume vessel, The 25th International Colloquium on Dynamics of Explosions and Reactive Systems, 291, 2015.08.
5.	Ekenechukwu C. Okafor, Fukuda Yosuke, Nagano Yukihide, Kitagawa Toshiaki, Turbulent Burning Velocities of Stoichiometric Hydrogen-Carbon Monoxide-Air Flames at Elevated Pressures, SAE 2014 International Powertrain, Fuels & Lubricants Meeting, 2014-01-2701, 2014.10.
6.	Ekenechukwu Okafor, Akihiro Hayakawa, Yukihide Nagano, Toshiaki Kitagawa, Effects of hydrogen concentration on premixed laminar flames of hydrogen-methane-air, Vol. 39, Issue 5 pp. 2409-2417, 2014.02.
7.	Ekenechukwu C. Okafor, Yukihide Nagano, Toshiaki Kitagawa, Effects of Hydrogen Concentration on Stoichiometric H2/CH4/Air Premixed Turbulent Flames, SAE/KSAE 2013 International Powertrains, Fuels & Lubricants Meeting, 2013-01-2563, 2013.10.
8.	Yukihide Nagano, Keiichiro Tomari, Hiroyuki Tsurudome, Akihiro Tsuda, Toshiaki Kitagawa, Turbulent burning velocities of Coal Gasification Gas under High CO2 Atmosphere, The 12th Japan-China Symposium on Coal and C1 Chemistry, 2013.10.
9.	Ekenechukwu C. Okafor, Masashi Toyoda, Akihiro Hayakawa, Yukihide Nagano, Toshiaki Kitagawa, Experimental and numerical studies on burning velocities and Markstein numbers of lean laminar H2/CH4/air flames, The 9th Asia-Pacific Conference on Combustion, 2013.05.
10.	Akihiro HAYAKAWA, Yukito MIKI, Yukihide NAGANO, Toshiaki KITAGAWA, Analysis of Turbulent Burning Velocity of Spherically Propagating Premixed Flame with Effective Turbulence Intensity, Journal of Thermal Science and Technology, Vol.7, No.4, pp.508-521, 2012.08.
11.	Nagano Yukihide, Ohira Tetsuya, Oonaka Masayuki, Uyama Yu, Toshiaki Kitagawa, One-dimensional Flame Propagation and Auto-ignition of End Gas in Constant Volume Vessel, The 8th INTERNATIONAL CONFERENCE ON MODELING AND DIAGNOSTICS FOR ADVANCED ENGINE SYSTEMS, 2012.08.
12.	Yukihide Nagano, Tomohiro Takeo, Keiichiro Tomari, Toshiaki Kitagawa, Effects of CO2 Diluton on H2/CO Flames under the Condition of Constant Flame Temperature, 8th KSME-JSME Thermal and Fluids Engineering Conference, 2012.03.
13.	Akihiro Hayakawa, Yukito Miki, Toshihiko Kubo, Yukihide Nagano, Toshiaki Kitagawa, Flame Front Shapes of Spherically Propagating Turbulent Premixed Flames at Various Pressures, 8th KSME-JSME Thermal and Fluids Engineering Conference, 2012.03.
14.	Ekenechukwu Chijioke Okafor, Akihiro Hayakawa, Yukihide Nagano, Toshiaki Kitagawa, Effects of Hydrogen Concentration on Hydrogen-Methane-Air Lean Laminar Flames, 8th KSME-JSME Thermal and Fluids Engineering Conference, 2012.03.
15.	Yukihide Nagano, Tomohiro Takeo, Keiichiro Tomari, Akihiro Hayakawa, Shoichi Kobayashi, Toshiaki Kitagawa, Combustion Properties of Hydrogen/Air Mixture with and without dilution, 2011 JSAE/SAE International Powertrains, Fuels & Lubricants, JSAE 20119219, SAE 2011-01-199, 2011.08.
16.	Akihiro Hayakawa, Yukito Miki, Shoichi Kobayashi, Yukihide Nagano, Toshiaki Kitagawa, Effects of CO2 and N2 Dilutions on Laminar and Turbulent Flame Propagation, 2011 JSAE/SAE International Powertrains, Fuels & Lubricants, JSAE 20119182, SAE 2011-01-1878, 2011.08.
17.	Yukihide Nagano, Kunihoro Kado, Tomohiro Takeo, Yukito Miki, Toshiaki Kitagawa, Effects of Diluent Gases on Combustion of Coal Gasification Gas: Comparison between N2 and CO2 Dilutions, ASME/JSME 8th Thermal Engineering Joint Conference, AJTEC2011-44290, 2011.03.
18.	Akihiro Hayakawa, Tomohiro Takeo, Yukito Miki, Yukihide Nagano, Toshiaki Kitagawa, Study of Thermo-Diffusive Effects on Iso-Octane/Air Flames at Fixed Turbulence Karlovitz Number, ASME/JSME 8th Thermal Engineering Joint Conference, AJTEC2011-44221, 2011.03.
19.	Toshiaki KITAGAWA, Yukihide NAGANO, Kousaku TSUNEYOSHI, Effects of Pressure on Markstein Number and Turbulent Propagation of Premixed Propane Flame, Proceedings of the 6th KSME-JSME Thermal and Fluids Engineering Conference, CD-ROM, DC06, 2005.03.
20.	Toshiaki KITAGAWA, Tomomi OGAWA, Yukihide NAGANO, The Effects of Pressure on Unstretched Laminar Burning Velocity, Markstein Length and Cellularity of Spherically Propagating Laminar Flames, Proceedings of the 6th International Symposium on Diagnostics and Modeling of Combustion in Internal Combustion Engines, CD-ROM, C8-1, 2004.08.

Presentations

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1.	Yukihide Nagano, Akihiro Tsuda, Akira Noomo, Takuya Fukushima, Masayoshi Morita, Toshiaki Kitagawa, Study on Factors Affecting Shape Characteristics of Spherically Propagating i-C₈H₁₈/O₂/N₂ Turbulent Flames Using Constant Volume Vessel, The Ninth INTERNATIONAL CONFERENCE ON MODELING AND DIAGNOSTICS FOR ADVANCED ENGINE SYSTEMS, 2017.07.
2.	Yukihide Nagano, Toshiaki Kitagawa, Atsushi Ohta, Shiro Takakura, Yutaka Tajima, Nobu Takahashi, Influences of Turbulence Scale on Development of Spherically Propagating Flame under High EGR Conditions, SAE 2015 International　Powertrain, Fuels & Lubricants Meeting, 2015.09.
3.	Yukihide Nagano, Toshiaki Kitagawa, Observation of Flame Propagation and Knock in a Constant Volume Vessel, The 25th International Colloquium on the Dynamics of Explosions and Reactive Systems, 2015.08.
4.	Ekenechukwu OKAFOR, Yukihide Nagano, Toshiaki Kitagawa, Experimental and analytical study of thermo-diffusive effects in spherically propagating H2/CH4/air premixed flames, 第52回日本伝熱シンポジウム, 2015.06.
5.	Ekenechukwu C. Okafor, Yosuke Fukuda, Nagano Yukihide, Kitagawa Toshiaki, Turbulent Burning Velocities of Stoichiometric Hydrogen-Carbon Monoxide-Air Flames at Elevated Pressures, SAE 2014 International　Powertrain, Fuels & Lubricants Meeting, 2014.10.
6.	Ekenechukwu Okafor, Nagano Yukihide, Kitagawa Toshiaki, Effects of hydrogen concentration on the turbulent burning velocity of stoichiometric H2-CH4-air flames, KAIST-Kyushu University Joint Workshop, 2014.09.
7.	Ekenechukwu OKAFOR, Nagano Yukihide, Kitagawa Toshiaki, On Cellular Instability in Lean Premixed Hydrogen-Methane-Air Flames at Elevated Pressures, THE THIRTY-FIFTH INTERNATIONAL SYMPOSIUM ON COMBUSTION, 2014.08.
8.	Ekenechukwu C. Okafor, Yukihide Nagano, Toshiaki Kitagawa, Effects of Hydrogen Concentration on Stoichiometric H2/CH4/Air Premixed Turbulent Flames, SAE/KSAE 2013 Powertrains, Fuels & Lubricants Meeting, 2013.10.
9.	Yukihide Nagano, Keiichiro Tomari, Hiroyuki Tsurudome, Akihiro Tsuda, Toshiaki Kitagawa, Turbulent Burning Velocity of Coal Gasification Gas under High CO2 Atmosphere, The 12th Japan-China Symposium on Coal and C1 Chemistry, 2013.10.
10.	Yukihide Nagano, Keiichiro Tomari, Hiroyuki Tsurudome, Akihiro Tsuda, Toshiaki Kitagawa, Influences of CO2 Dilution and Mixture Pressure on Combustion Properties of Coal Gasification Gas, The 9th Asia Pacific Conference on Sustainable Energy & Environmental Technologies (APCSEET2013), 2013.07.
11.	Ekenechukwu Okafor, Masashi Toyoda, Akihiro Hayakawa, Yukihide Nagano, Toshiaki Kitagawa, Experimental and numerical studies on burning velocities and Markstein numbers of lean laminar H2/CH4/air flames, 9th Asia-Pacific Conference on Combustion, 2013.05.

Membership in Academic Society

Society of Automotive Engineers of Japan
Combustion Society of Japan
Japan Society of Mechanical Engineers
The Visualization Society of Japan
THE JAPAN INSTITUTE OF ENERGY

Educational Activities

Mechanical and Aerospace Engineering Experiments II

http://www.mech.kyushu-u.ac.jp/~rgd/index-j.html