Researches on Advanced Numerical Simulation Technology for Combustion and Gasification
MISSION
This project is partially supported by MEXT as a priority issue 6 (Practical applications of innovative clean energy system) to be tackled by using Post ‘K’ Computer. This project is the successor of “Researches and Developments of Design Systems for Next Generation Combustion and Gasification Devices” in the "Strategic Program  Research Field No. 4: Industrial Innovations" from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT)'s "Development and Use of Advanced, HighPerformance, GeneralPurpose Supercomputers Project".
The principal objective of this project is to physically understand turbulence, particle/droplet dispersion, combustion and gasification, and to develop numerical design systems for next generation combustion and gasification devices by use of the K and Post K computers. Particular emphasis is placed on largeeddy simulation (LES) and direct numerical simulation (DNS) of combustion and gasification of various fuels (i.e. liquid fuel and coal) taken place under the conditions that (1) pressure is very high (e.g. supercritical pressure), (2) ash melting behavior should be considered, and/or (3) fluidstructure interaction analysis is required.
The unstructured LES solver we mainly use is based on FrontFlow/red and extended by Kyoto Univ., Kyushu Univ., CRIEPI and Numerical Flow Designing, Ltd., which is referred to as "FFRComb". In addition, the structured inhouse DNS/LES solver called “FK^{3}” is used for the basic researches for gaseous/spray/pulverized coal combustion. The “FK^{3}” also can be applied to zerodimensional calculations for estimating ignition delay (FK^{3}/0d) and onedimensional calculations for generating flamelet libraries (FK^{3}/1d) with detailed reaction mechanisms.
ANNOUNCEMENTS
June
 4 
, 2016: 
2016's 1st meeting will be held at Kyoto University on June 24, 2016. 
December
 14 
, 2016: 
2017's 1st meeting will be held at JAXA (Chofu) on March 3, 2017. 
April
 26 
, 2017: 
2017's 2nd meeting will be held at Hokkaido University on September 8, 2017. 
September
 9 
, 2017: 
2018's 1st meeting will be held at Kyoto University on March 9, 2018. 
PARTCIPATING ORGNIZATIONS
Kyoto University (Project Leader: Ryoichi Kurose), Osaka University, Kyushu University, Hokkaido University, Tokushima University, Central Research Institute of Electric Power Industry (CRIEPI), Japan Aerospace Exploration Agency (JAXA), Mitsubishi Heavy Industries, Ltd., IHI Corporation, Mitsubishi Hitachi Power Systems, Ltd., Toshiba Corporation, IHI Aerospace Co., Ltd.
RESEARCH TOPICS
Play movie
LES of a combustion field of a 8cantype gas turbine by Kyoto Univ. and KHI (0.14 billion cells, 20,000 cores, K computer)
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LES of a spray combustion field of a full annular combustor for aircraft jet engine by Kyoto Univ., JAXA and NuFD (0.12 billion cells, 10,000 cores, K computer)
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LES of a pulverized coal combustion field of a CRIEPI MultiBurner system by Kyoto Univ. and CRIEPI (0.1 billion cells, 10,000 cores, K computer)
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LES of gaseous combustion
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DNS of flashback in a turbulent channel flow
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LES of spray combustion
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LES of combustion instability of spray combustion
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LES of pulverized coal combustion
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URANS of coal gasification
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DNS of ignition of pulverized coal
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DEMCFD coupling simulation of 3D and 2D bubbling fluidized beds
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Validations by experiments
MAJOR PUBLICATIONS (including previous project's publications)
SPRAY COMBUSTION:

A. L. Pillai, R. Kurose,
“Numerical investigation of combustion noise in an open turbulent spray flame”,
Applied Acoustics,
133,
1627 (2018).

H. Tani, H. Terashima, Y. Daimon, M. Koshi, R. Kurose,
“A numerical study on hypergolic combustion of hydrazine sprays in nitrogen tetroxide streams”,
Combustion Science and Technology,
190,
515533 (2018).

Y. Hu, R. Kurose,
“Nonpremixed and premixed flamelets LES of partially premixed spray flames using a twophase transport equation of progress variable”,
Combustion and Flame,
188,
227242 (2018).
 T. Kitano, K. Kaneko, R. Kurose, S. Komori,
"Largeeddy simulations of gas and liquidfueled combustion instabilities
in backstep flows",
Combustion and Flame, Vol.170, 6378 (2016).
 S. Tachibana, K. Saito, T. Yamamoto, M. Makida, T. Kitano, R. Kurose,
"Experimental and numerical investigation of thermoacoustic instability in a liquidfuel aeroengine combustor at elevated pressure: validity of largeeddy simulation of spray combustion",
Combustion and Flame, Vol.162, pp.26212637 (2015).
 H. Tani, H. Terashima, R. Kurose, T. Kitano, M. Koshi, Y. Daimon,
"Hypergolic ignition and flame structures of hydrazine spray/gaseous nitrogen tetroxidec coflowing jets",
AIAA Paper, 53rd AIAA Aerospace Sciences Meeting, Kissimmee, FL, USA, 20150422 (16 pages) (2015).
 T.Kitano, J. Nishio, R. Kurose, S. Komori,
"Effect of ambient pressure on soot formation in oxyfuel spray jet flame",
In Proc. of The 15th International Heat Transfer Conference (IHTC15), Kyoto, Japan, DIGITAL LIBRARY (IHTC158744, 15 pages), (2014).
 H. Watanabe, R. Kurose, M. Hayashi, T. Kitano, S. Komori,
"Effects of ambient pressure and precursors on soot formation in spray flames",
Advanced Powder Technology, Vol.25, pp.13761387 (2014).
 T. Kitano, J. Nishio, R. Kurose, S. Komori,
"Evaporation and combustion of multicomponent fuel droplets",
Fuel, Vol.136, pp.219225 (2014).
 T. Kitano, J. Nishio, R. Kurose, S. Komori,
"Effects of ambient pressure, gas temperature and combustion reaction on droplet evaporation",
Combustion and Flame, Vol.161, pp.551564 (2014).
 H. Moriai, R. Kurose, H. Watanabe, Y. Yano, F. Akamatsu, S. Komori,
"Largeeddy simulation of turbulent spray combustion in a subscale aircraft jet engine combustor
 Predictions of NO and soot concentrations ",
Journal of Engineering for Gas Turbines and Power, Vol.135, 091503 (2013).
 T. Kitano, R. Kurose, S. Komori,
"Effects of internal pressure and inlet velocity disturbances of air and fuel droplets on spray combustion field",
Journal of Thermal Science and Technology, Vol.8, pp.269280 (2013).
 A. Fujita, H. Watanabe, R. Kurose, S. Komori,
"Two dimensional direct numerical simulation of spray flames. Part 1: Effects of equivalence ratio, fuel droplet size and radiation, and validity of flamelet model",
Fuel, Vol.104, pp.515525 (2013).
 T. Kitano, T. Nakatani, R. Kurose, S. Komori,
"Twodimensional direct numerical simulation of spray flames. Part 2: Effects of ambient pressure and lift, and validity of flamelet model",
Fuel, Vol.104, pp.526535 (2013).
 J. Hayashi, H. Watanabe, R. Kurose, F. Akamatsu,
"Effects of fuel droplet size on soot formation in spray flames formed in a laminar counterflow",
Combustion and Flame, Vol.158, pp.25592568 (2011).
 Nakamura, M., Nishioka, D., Hayashi, J., Akamatsu, F.,
"Soot formation, spray characteristics, and structure of jet spray flames under high pressure",
Combustion and Flame, Vol.158, pp.16151623 (2011).
 Y. Baba, R. Kurose,
"Flamelet characteristics of gaseous and spray lifted flames on twodimensional direct numerical simulations",
Journal of Fluid Science and Technology, Vol.3, pp.846856 (2008).
 Y. Baba, R. Kurose,
"Analysis and flamelet modeling for spray combustion",
Journal of Fluid Mechanics, Vol.612, pp.4579 (2008).
 H. Watanabe, R. Kurose, S. Komori, H. Pitsch,
"Effects of radiation on spray flame characteristics and soot formation",
Combustion and Flame, Vol.152, pp.213 (2008).
 H. Watanabe, R. Kurose, H.S. Hwang, F. Akamatsu,
"Characteristics of flamelet in spray flames formed in a laminar counterflow",
Combustion and Flame, Vol.148, pp.234248 (2007).
 M. Nakamura, F. Akamatsu, R. Kurose, M. Katsuki,
"Combustion mechanism of liquid fuel spray in gaseous flame",
Physics of Fluids, Vol.17, 123301 (2005).
PULVERIZED COAL COMBUSTION:
 N. Hashimoto, H. Watanabe, R. Kurose, H. Shirai,
"Effect of different fuel NO models on the prediction of NO formation/reduction characteristics in a pulverized coal combustion field",
Energy, Vol.118, pp.4759 (2017).
 M. Muto, K. Yuasa, R. Kurose,
"Numerical simulation of ignition in pulverized coal combustion with detailed chemical reaction mechanism"
Fuel, Vol.190, pp.136144 (2017).
 M. Muto, K. Tanno, R. Kurose,
"A DNS study on effect of coal particle swelling due to devolatilization on pulverized coal jet flame",
Fuel, Vol.184, pp.749752 (2016).
 T. Hara, M. Muto, T. Kitano, R. Kurose, S. Komori,
"Direct numerical simulation of a pulverized coal jet flame employing a global volatile matter reaction scheme based on detailed reaction mechanism",
Combustion and Flame, Vol.162, pp.43914407 (2015).
 M. Muto, H. Watanabe, R. Kurose, S. Komori, S. Balusamy, S. Hochgreb,
"Largeeddy simulation of pulverized coal jet flame effect of oxygen concentration on NOx generation",
Fuel, Vol.142, pp.152163 (2015).
 H. Umetsu, H. Watanabe, S. Kajitani, S. Umemoto,
"Analysis and modeling of char particle combustion with heat and multicomponent mass transfer",
Combustion and Flame, Vol.161, pp.21772191 (2014).
 N. Hashimoto, R. Kurose, H. Shirai,
"Numerical simulation of pulverized coal jet flame using the TDP model",
Fuel, Vol.97, pp.277287 (2012).
 N. Hashimoto, R. Kurose, S.M. Hwang, H. Tsuji, H. Shirai,
"A numerical simulation of pulverized coal combustion employing a tabulateddevolatilizationprocess model (TDP model)",
Combustion and Flame, Vol.159, pp.353366 (2012).
 R. Kurose, H. Watanabe, H. Makino,
"Numerical simulations of pulverized coal combustion",
KONA Powder and Particle Journal, No.27, pp.144156 (2009).
 H. Watanabe, R. Kurose, S. Komori,
"Largeeddy simulation of swirling flows in a pulverized coal combustion furnace with a complex burner",
Journal of Environment and Engineering, Vol.4, pp.111 (2009).
 N. Hashimoto, R. Kurose, H. Tsuji, H. Shirai,
"A numerical analysis of pulverized coal combustion in a multiburner Furnace",
Energy Fuels, Vol.21, pp.19501958 (2007).
 R. Kurose, H. Makino, N. Hashimoto, A. Suzuki,
"Formation mechanism of particulate matter in coal combustion",
Powder Technology, Vol.172, pp.5056 (2007).
 S. M. Hwang, R. Kurose, F. Akamatsu, H. Tsuji, H. Makino, M. Katsuki,
"Application of optical diagnostics techniques to laboratoryscale turbulent pulverized coal flame",
Energy Fuels, Vol.19, pp.382392 (2005).
 R. Kurose, H. Makino, H. Matsuda, A. Suzuki,
"Application of percolation model to ash formation process in coal combustion",
Energy Fuels, Vol.18, pp.10771086 (2004).
 R. Kurose, M. Ikeda, H. Makino, M. Kimoto, T. Miyazaki,
"Pulverized coal combustion characteristics of high fuel ratio coals",
Fuel, Vol.83, pp.11771785 (2004).
 R. Kurose, H. Makino, A. Suzuki,
"Numerical analysis of pulverized coal combustion characteristics using advanced lowNOx burner",
Fuel, Vol.83, pp.693703 (2004).
 R. Kurose, H. Makino,
"Largeeddy simulation of a solidfuel jet flame",
Combustion and Flame, Vol.135, pp.116 (2003).
 R. Kurose, M. Ikeda, H. Makino,
"Combustion characteristics of high ash coal in a pulverized coal combustion",
Fuel, Vol.80, pp.14471455 (2001).
 R. Kurose, H. Tsuji, H. Makino,
"Effects of moisture in coal on pulverized coal combustion characteristics",
Fuel, Vol.80, pp.14571465 (2001).
COAL GASIFICATION:
 T. Tsuji, K. Higashida, Y. Okuyama, T. Tanaka,
"Fictitious particle method: a numerical model for flows including dense solids with large size difference",
AIChE Journal, Vol.60, pp.16061620 (2014).
 T. Tsuji, E. Narita, T. Tanaka,
"Effect of a wall on flow with dense particles",
Advanced Powder Technology, Vol.24, pp.565574 (2013).
 T. Tsuji, H. Yada, K. Yoshikawa, T. Tanaka,
"Comparison between DNS and DEMCFD coupling mesoscopic simulation for 2D spouted fluidized bed",
Proceedings of International conference on Multiphase Flow, CDROM, No.13.1.2 (2010).
 T. Tsuji, K. Yabumoto, T. Tanaka,
"Spontaneous structures in threedimensional bubbling gasfluidized bed by parallel DEMCFD coupling simulation",
Powder Technology, Vol.184, pp.132140 (2008).
 H. Watanabe, M. Otaka,
"Numerical simulation of coal gasification in entrained flow coal gasifier ",
Fuel, Vol.85, pp.19351943 (2006).
OTHER RELATED PAPERS:

R. N. Roy, M. Muto, R. Kurose,
“Direct numerical simulation of ignition of syngas (H2/CO) mixtures with temperature and composition stratifications relevant to HCCI conditions”,
International Journal of Hydrogen Energy,
42, 41,
2615226161 (2017).
 T. Kitano, H. Iida, R. Kurose,
"Effect of chemical reactions of H2/O2 combustion gas on heat transfer on a wall in a turbulent channel flow",
Journal of Heat Transfer, Vol.139, 044501 (2017).
 T. Kitano, T. Tsuji, R. Kurose, S. Komori,
“Effect of pressure oscillations on flashback characteristics in a turbulent
channel flow”,
Energy & Fuels, Vol.29, pp.68156822 (2015).
 K. Tanno, R. Kurose, T. Michioka, H. Makino, S. Komori,
"Direct numerical simulation of flow and surface reaction in deNOx catalyst",
Advanced Powder Technology, Vol.24, pp.879885 (2013).
 R. Kurose, M. Anami, A. Fujita, S. Komori,
"Numerical simulation of flow past a heated/cooled sphere",
Journal of Fluid Mechanics, Vol.692, pp.332346 (2012).
 R. Kurose, N. Takagaki, T. Michioka, N. Kohno, S. Komori,
"Subgrid scale scalar variance in highSchmidtnumber turbulence",
AIChE Journal, Vol.58, pp.377384 (2012).
 R. Kurose, T. Michioka, N. Kohno, S. Komori, Y. Baba,
"Application of flamelet model to LES of turbulent reacting liquid flows",
AIChE Journal, Vol.57, pp.911917 (2011).
 R. Kurose, A. Fujita, S. Komori,
"Effect of relative humidity on heat transfer across the surface of an evaporating water droplet in air flow",
Journal of Fluid Mechanics, Vol.624, pp.5767 (2009).
 T. Michioka, R. Kurose,
"Largeeddy simulation of particle diffusion in a particleladen swirling jet",
Journal of Fluid Science and Technology, Vol.3, pp.610621 (2008).
 T. Michioka, R. Kurose, K. Sada, H. Makino,
"Direct numerical simulation of particleladen mixing layer with a chemical reaction",
International Journal of Multiphase Flow, Vol.31, pp.843866 (2005).
 R. Kurose, H. Makino, S. Komori, M. Nakamura, F. Akamatsu, M. Katsuki,
"Effects of outflow from the surface of a sphere on drag, shear lift, and scalar diffusion",
Physics of Fluids, Vol.15, pp.23382351 (2003).
 R. Kurose, H. Makino, T. Michioka, S. Komori,
"Large eddy simulation of a nonpremixed turbulent reacting mixing layer: effects of heat release and spanwise fluid shear",
Combustion and Flame, Vol.127, pp.21592165 (2001).
CONTACT INFORMATION
Ryoichi KUROSE, Dr.
Professor
Department of Mechanical Engineering and Science
Kyoto University
Kyoto daigakuKatsura, Nishikyoku, Kyoto 6158540, JAPAN
Email: kurose@mech.kyotou.ac.jp
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