Hello, I'm Jiwon Lee.
Welcome to my personal website!
I am a PhD student in the Komurasaki & Koizumi Laboratory at the University of Tokyo.
- 🏛️ Affiliation: The University of Tokyo, Komurasaki & Koizumi Lab
- 🔬 Research Interest: Electric Propulsion, Hall Thrusters, Rarefied gas dynamics, DSMC method
- 📍 Location: Tokyo, Japan
Research Interest
My research focuses on the numerical and experimental analysis of Argon Hall thrusters to improve their performance and lifetime.
- Electric Propulsion: Neutral flow dynamics in Hall thrusters, Alternative propellants (Argon, etc.)
- Numerical Simulation: Developing Direct Simulation Monte Carlo (DSMC) codes
Academic Work
Publications (Peer-Reviewed)
- J. Lee, et al., “Numerical Analysis of Rarefied Gas Flow Dominated by Wall Reflection in a Straight Channel,” Vacuum, 2026, doi: 10.1016/j.vacuum.2025.114930
- D. Satpathy, H. Sekine, J. Lee, et al., "Influence of propellant injection directionality on the performance of an argon Hall thruster", Journal of Applied Physics, American Institute of Physics Publishing, 2024, doi: 10.1063/5.0241386
International Conferences
- J. Lee, et al., "Numerical Analysis for the Design Optimization of Sawtooth-Shaped Channels for Enhanced Reverse Flow", 78th Annual Gaseous Electronics Conference ,Seoul, Republic of Korea, Oct, 2025. (Oral)
- J. Lee, et al., "Control of Neutral Gas Flow in a Hollow Anode of Hall Thrusters", 39th International Electric Propulsion Conference, London, UK, Sep, 2025. (Poster)
- D. Satpathy, H. Sekine, J. Lee, et al., "Enhancement of neutral particle density by propellant reversal through a sawtooth hollow anode", 39th International Electric Propulsion Conference, London, UK, Sep, 2025. (Oral)
- D. Satpathy, H. Sekine, J. Lee, et al., "Difference in plasma potential profiles between xenon and argon propellants in RAIJIN-66", 39th International Electric Propulsion Conference, London, UK, Sep, 2025. (Oral)
- N. Barth, D. Satpathy, J. Lee, et al., "Magnetohydrodynamic Analysis of High-Density Plasma Hall Thruster Operation", 39th International Electric Propulsion Conference, London, UK, Sep, 2025. (Oral)
- J. Lee, et al., "Neutral Gas Flow Dynamics in a Hall thruster Dominated by Wall Reflections", 35th International Symposium on Space Technology and Science, Tokushima, Japan, Jul, 2025. (Oral)
- D. Satpathy, H. Sekine, J. Lee, et al., "An argon Hall thruster using a hollow anode with corrugated surface", 35th International Symposium on Space Technology and Science, Tokushima, Japan, Jul, 2025. (Oral)
- N. Barth, T. Suehiro, D. Satpathy, J. Lee, et al., "Magnetohydrodynamic Analysis of High Mass Flow Rate-Induced High-Density Plasma Hall Thruster Operation", 12th Asian Joint Propulsion Conference, Xi'an, China, Mar, 2025. (Oral)
- D. Satpathy, H. Sekine, J. Lee, et al., "Propellant Utilization Efficiency of an Argon Hall Thruster with Swirl Injection", 39th International Electric Propulsion Conference, Toulouse, France, Jun, 2024. (Oral)
Domestic Conferences
- J. Lee, et al., "Analysis of Neutral Particle Back-flow effects on Sawtooth Walls in TAL", 令和7年度 宇宙輸送シンポジウム, Kanagawa, Japan, Jan, 2026. (Oral, Accepted)
- J. Lee, et al., "Analysis of Neutral Particle Flow Variation in the Anode and Channel According to Injection Methods", 令和6年度 宇宙輸送シンポジウム, Kanagawa, Japan, Jan, 2025. (Oral)
- J. Lee, et al., "Rarefied Gas Flow in a Channel Dominated by Wall Reflection", 第38回数値流体力学シンポジウム, Tokyo, Japan, Dec, 2024. (Oral)
- J. Lee, et al., "DSMC Numerical Analysis of Suitable Anode Length for Swirl Injection Method and Efficiency Change by Mass Flow Rate", 第68回宇宙科学技術連合講演会, Himeji, Japan, Nov, 2024. (Poster)
- J. Lee, et al., "Rarefied Gas Dynamics of a Propellant Flow Spiraling in a Channel", 第55回日本航空宇宙学会年会講演会, Tokyo, Japan, Apr, 2024. (Oral)
- D. Satpathy, J. Lee, et al.,"Impact of active anode cooling on argon Hall thruster performance", 第63回航空原動機・宇宙推進講演会, Sapporo, Japan, Mar, 2024. (Oral)
- D. Satpathy, H. Sekine, J. Lee, et al., "Ionization length estimation of RAIJIN66 determined from performance measurements during its thermal transient operation", 令和5年度 宇宙輸送シンポジウム, Kanagawa, Japan, Jan, 2024. (Oral)
- J. Lee, et al., "Use of Argon Propellant in a Hall Thruster for Mass Transportation", 第9回宇宙太陽光発電シンポジウム, Kanazawa, Japan, Dec, 2023. (Oral)
Experience
CFD Engineer
Auxilart Co., Ltd., Japan
- Specializing in computational modeling of gas-liquid two-phase flows in industrial tanks.
Research Internship
Complex Micro-Fluids Lab, KIST(Korea Institute of Science and Technology), Republic of Korea
- Measurement of fluorescent particle velocity in microchannels through Particle Streak Velocimetry.
Education
Ph.D. in Aeronautics and Astronautics
The University of Tokyo, Japan
Department of Aeronautics and Astronautics, Graduate School of Engineering
Advisor: Kimiya Komurasaki
M.S. in Aeronautics and Astronautics
The University of Tokyo, Japan
Department of Aeronautics and Astronautics, Graduate School of Engineering
Advisor: Kimiya Komurasaki
Thesis: “Anode Design Optimization of Argon Hall Thrusters Based on DSMC Analysis of Neutral Particle Behavior”
Research student in Aeronautics and Astronautics
The University of Tokyo, Japan
Department of Aeronautics and Astronautics, Graduate School of Engineering
Advisor: Kimiya Komurasaki
B.S. in Mechanical Engineering
Hanyang University, Republic of Korea
School of Mechanical Engineering
Advisor: Rhokyun KWAK
Thesis: “Electroconvective instability on liquid metal electrodes”
Honors & Awards
- JSPS Research Fellowship for Young Scientists (DC1), Apr. 2026 - Mar. 2029 - Selected by Japan Society of Promotion of Science (JSPS) (Oct 2024)
- LOTTE FOUNDATION Scholarship - Selected by Lotte Foundation (Oct. 2024 - Sep. 2026)
- Grand prize of 2024 Aero Future & Business Idea Competition - Issued by Hanwha Aerospace (Jul 2024)
- The third prize of the Capstone Design Competition - Issued by Hanyang University, Republic of Korea (Jun 2022)
Most prestigious fellowship for Ph.D. students in Japan with an acceptance rate of approx. 9% (3/33 in the division), providing a three-year monthly stipend and research grant.
Selected as the top student of the Fall 2024 cohort and honored as the representative award recipient.
Awarded the Grand Prize in the 'Future Tech' theme, ranking among the Top 3 out of 126 teams
Awarded to the top 10% of graduation theses
Skills
- Languages: Korean (Native), English (Fluent), Japanese (Fluent)
- Programming & Tools: C, C++, Fortran, Python, MATLAB, OpenFOAM, ParaView, AUTODESK Inventor, Ansys, LabVIEW
Else
- Completed Deep Space Exploration Education Program, The University of Tokyo, Mar, 2025.
- Completed Computational Science Alliance Program, The University of Tokyo, Mar, 2025.
- Military service in Army Aviation Command, R.O.K. Army, Jul, 2020 - Jan, 2022
Served as a Medium Utility Helicopter mechanic.
Contact
Feel free to contact me for any inquiries or collaboration opportunities.
Komurasaki & Koizumi Lab
Graduate School of Engineering
Department of Aeronautics and Astronautics
The University of Tokyo
7-3-1, Hongo, Bunkyo, Tokyo Japan, 113-8656
TEL & FAX: +81-3-5841-6559
🎓 Google Scholar: Google Scholar Profile
🆔 ORCID: orcid.org/0009-0005-8982-1239
🔗 LinkedIn: linkedin.com/in/jiwon-lee
📧 Email: l.jiwon@al.t.u-tokyo.ac.jp