Younghwa Cho

Computational Fluid Mechanics Laboratory, Hokkaido University

Kita 13-jo Nishi 8-chome, Kita-ku, Sapporo, Hokkaido, 060-8628 JAPAN

Languages (a-z)

English (Intermediate)
Japanese (Fluent)
Korean (Native)

Research Interests

Reacting Flow Simulation
Chemical Kinetics
Turbulence
Differential Equations
Variational Methods
Singular Perturbation Methods
Renormalization Group Methods
Nonlinear Dynamics
Computational Diagnostics
Computer Vision
High-Performance Computing (HPC)
Quantum Computing / Informatics
Data Assimilation

Computer Skills

Programming: Modern Fortran, C/C++, Python, Julia, and Shell (bash, zsh)
Parallel Computing: MPI, OpenMP, OpenACC, and CUDA
3D Modeling Software: Free CAD

Link

Computational Fluid Mechanics Laboratory

: https://cfml.eng.hokudai.ac.jp

RIKEN Center for Computational Science

: www.r-ccs.riken.jp/en/

Laboratory of Fluids in Complex Environments

: https://ihmegroup.github.io/

International HPC Summer School

: https://www.ihpcss.org/

Access

Current Position

International HPC Summer School (IHPCSS) Fellow (July 2024 - Present)

R-CCS, Japan; ACCESS, USA; EuroHPC, European Union; SciNet, Canada; Pawsey, Australia Research Fellowship

JSPS Research Fellow (DC2) (April 2023 - March 2025)

Japan Society for the Promotion of Science, Japan Research Fellowship

PhD Candidate (April 2022 - Present)

Division of Mechanical and Space Engineering Graduate School of Engineering, Hokkaido University, Japan ** Supervisor: Prof. Nobuyuki Oshima

Research Associate (April 2022 - Present)

Center for Computational Science, RIKEN (R-CCS), Japan Complex Phenomena Unified Simulation Research Team (PI: Prof. Makoto Tsubokura) ** Advisor: Prof. Rahul Bale

Visiting Scholar (December 2023 - April 2024)

Department of Mechanical Engineering, Stanford University, USA Laboratory of Fluids in Complex Environments (FxLab)
** PI: Prof. Matthias Ihme

Education

M.S. in Mechanical and Space Engineering (April 2020 - March 2022)

Computational Fluid Mechanics Laboratory Division of Mechanical and Space Engineering Graduate School of Engineering, Hokkaido University, Japan ** Minor: Computer Science Research Theme: A Preliminary Study on Semi-Implicit, Density-Based Algorithm for Spray Large-Eddy Simulation ** Supervisor: Prof. Nobuyuki Oshima

B.S. in Mechanical Engineering (April 2014 - March 2020)

Computational Fluid Mechanics Laboratory, Hokkaido University, Japan Research Theme: Numerical Simulation of Flow in a Fuel-injector of an Aircraft Engine Supervisor: Prof. Nobuyuki Oshima

Academic Honors and Fellowships

International HPC Summer School (IHPCSS) (July 2024)

R-CCS, Japan; ACCESS, USA; EuroHPC, European Union; SciNet, Canada; Pawsey, Australia Research Fellowship

JSPS Research Fellow (DC2 ) (April 2023 - March 2025)

Japan Society for the Promotion of Science, Japan Research Fellowship

Junior Research Associate (April 2022 - March 2023)

Center for Computational Science, RIKEN (R-CCS), Japan Complex Phenomena Unified Simulation Research Team (PI: Prof. Tsubokura) Research Fellowship

Hokkaido University DX Doctoral Fellowship (April 2022 - March 2023)

Hokkaido University, Japan Research Fellowship

JSME Miura Award (March 2022)

The Japan Society of Mechanical Engineers Academic excellence award for the master course student graduating with the highest honor

34th Computational Fluid Dynamics Symposium Best Graphics Awards (December 2020)

The Japan Society of Fluid MechanicsSpecial Award (Award for 2nd Place)Title: Flow in a Fuel-Injector of an Aircraft Engine

ISTAT Scholarship (May 2020 - March 2021)

International Society of Transport Aircraft Trading, USA

Dean’s Award for Academic Achievement (March 2020)

School of Engineering, Hokkaido University, Japan Academic excellence award for the student graduating with the highest honor

Nitobe Award (July 2015)

Hokkaido University, Japan Academic excellence award for 1st-year undergraduates

Korea-Japan Joint Government Scholarship (March 2013 - March 2020)

MEST, Rep. of Korea & MEXT, Japan

Research Projects/Grants I Acquired as the Representative

2025年度機械振興補助事業（国際交流）- (November 2025 - October 2025)

　 Japan Keirin Autorace foundation, Japan Research Grant Acquired: ￥500,000 (JPY)

Grant-in-Aid for JSPS Fellows -KAKENHI(科研費)- (April 2023 - March 2025)

　 Japan Society for the Promotion of Science, Japan Research Grant Acquired: ￥1,700,000 (JPY)

HU Researcher Overseas Travel Grant Program (December 2023 - March 2024)

Hokkaido University, Japan Research Grant Acquired: ￥900,000 (JPY)

Research Grant for Hokkaido University DX Doctoral Fellow (April 2022 - March 2023)

Hokkaido University, Japan Research Grant Acquired: ￥400,000 (JPY)

Supercomputer Fugaku (富岳 ) Junior Researchers Projects (August 2021 - August 2022)

High-Performance Computing Infrastructure (HPCI) of MEXT, Japan Research Project ID: hp210230 Computational System Acquired: Supercomputer "Fugaku (富岳 )" of RIKEN-CCS Resource Acquired: 1,000,000 Node-Hours

Supercomputer Fugaku (富岳 ) Preliminary Use Project (November 2020 - March 2021)

High-Performance Computing Infrastructure (HPCI) of MEXT, Japan Research Project ID: hp200255 Computational System Acquired: Supercomputer "Fugaku (富岳 )" of RIKEN-CCS Resource Acquired: 80,000 Node-Hours
**Projects where I am/was just a participant, are omitted.

Conference Presentations (Not Up-to-date)

Domestic Conference

Y. Cho, N. Oshima, R. Kishine, T. Oda, "Large-eddy simulation of turbulent combustion and the NOx prediction in a methane-hydrogen gas-turbine combustor using the multi-scalar flamelet database", 6th Project Report Meeting of the HPCI System Including K computer & 2nd HPCI Consortium Symposium, 1 Nov. 2019, Tokyo, Japan. (Poster)
Y. Cho, R. Bale, C.G. Li, T. Satoh, R. Matsuyama, T. Oda, M. Tsubokura, N. Oshima, "Numerical simulation of flow in a fuel-injector of an aircraft engine", 33th Computational Fluid Dynamics Symposium, 27-29 Nov. 2019, Hokkaido, Japan. (Oral presentation)
Y. Cho, R. Bale, T.Oda, N.Oshima, "Application of compressible immersed boundary method on a flow in a fuel-injector of an aircraft engine", Mechanical Engineering Congress 2020 Japan (MECJ-20), 13-16 Sep. 2020, Nagoya, Japan (On-line). (Oral presentation)
Y. Cho, R. Bale, T.Oda, N.Oshima, "A validation study on large eddy simulation of combustion flows by using a new HPCI software for Post-K: Fugaku", 6th Project Report Meeting of the HPCI System Including K computer, 29-30 Oct. 2020, Tokyo, Japan (On-line). (Poster)

International Conference

Y.Cho, R.Bale, T.Satoh, N.Oshima, "Numerical simulation of flow in a fuel-injector of an aircraft engine combustor using building-cube method", The 14th World Congress in Computational Mechanics (WCCM) & ECCOMAS Congress 2020, 11–15 Jan. 2021, Paris, France (On-line). (Oral presentation)
Y.Cho, R.Bale, M.Tsubokura, N.Oshima, "Investigation of the efficiency of semi-implicit solver for fuel-droplet-laden compressible flow", The 9th edition of the International Conference on Computational Methods for Coupled Problems in Science and Engineering (COUPLED PROBLEMS 2021), 13–16 June 2021, Cagliari, Italy (On-line). (Oral presentation)

For more details : [Curriculum Vitae] (As of July 2023 )

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