Research

Thank you for your interest on our research activities. From the recent academic history, you’ll see what we’re currently doing.

Research topics of our interests

  • Physics and simulations of Gyrokinetics and turbulence transport in nuclear fusion
  • Virtual Tokamak development (Digital twin, VR) - Unreal game engine, Unity, Blender, etc…
  • Automatic unstructured mesh generation and its utilization - PUMI(RPI SCOREC), SimModSuite(Simmetrix)
  • High performance computing (Code parallelization and optimization)
  • Machine learning (Data-driven & Physics-Informed)

Selected articles

2023

  • Geon Kim, Yunsong Jung, Myeongkyu Lee, Eisung Yoon*, Sangjoon Ahn*, SANTA: A safety analysis code for neutron absorbers in spent nuclear fuel pools, Computer Physics Communications 282, 108513 Link

2022

  • Dongkyu Kim, Janghoon Seo, Gahyung Jo, Jae-Min Kwon, Eisung Yoon*, Nonlinear Fokker-Planck collision operator in Rosenbluth form for gyrokinetic simulations using discontinuous Galerkin method, Computer Physics Communications 279, 108459 Link
  • D. Kim, J. Kang, M.W. Lee, J. Candy, E.S. Yoon, S. Yi, J.-M. Kwon, Y.-c, Ghim, W. Choe, C. Sung*, Progress in gyrokinetic validation studies using NBI heated L-mode discharge in KSTAR, Current Applied Physics 42, 60 Link
  • Gahyung Jo*, Jae-Min Kwon, Janghoon Seo, Eisung Yoon, Development of a gyrokinetic hyperbolic solver based on discontinuous Galerkin method in tokamak geometry, Computer Physics Communications 273, 108265 Link

2021

  • Gerrett Diamond*, Cameron W. Smith, Chonglin Zhang, Eisung Yoon, Mark S. Shephard, PUMIPic: A mesh-based approach to unstructured mesh Particle-In-Cell on GPUs, Journal of parallel and distributed computing 157, 1 Link

For more information, see Google scholar, and ScholarWorks@UNIST.

Selected conference presentations

2023

  • Sungpil Yum, Kyu Been Kwon, and Eisung Yoon*, Numerical grid matching for Coupling SOLPS-ITER and NEO, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 18-19, 2023
  • Dami Jung, Jae-Min Kwon, and Eisung Yoon*, Selecting dominant modes and reducing data dimensionality on GENE data with DMD, Transactions of the Korean Nuclear Society Spring Meeting, Jeju, Korea, May 18-19, 2023

2022

  • Taeuk Moon, Tongryeol Lee, Juhyung Kim, Jae-Min Kwon, and Eisung Yoon*, Ray-casting based detection of fast ion collision on plasma-facing wall implemented in NuBDeC, KPS 70th Anniversary and 2022 Fall Meeting
  • Sungpil Yum and Eisung Yoon*, Unsupervised machine-learning algorithm for Orbit classification of electron trajectory under magnetic island, KPS 70th Anniversary and 2022 Fall Meeting
  • Eisung Yoon and Jae-Min Kwon*, Learning data-driven kinetic Landau fluid closures from particle simulations, INTERNATIONAL FUSION AND PLASMA CONFERENCE 2022
  • Taeuk Moon, Gahyung Jo, Janghoon Seo, Juhyung Kim, Jae-Min Kwon, and Eisung Yoon*, About Introducing Field-aligned Prism Elements in Tokamak Geometry, INTERNATIONAL FUSION AND PLASMA CONFERENCE 2022
  • Chanju Park, Eisung Yoon*, Wonjun Tae, Jayhyun Kim, Jisung Kang, Jae-Min Kwon, and Minjun J. Choi, Simulation of flows near magnetic island observed in KSTAR experiments using GENE, INTERNATIONAL FUSION AND PLASMA CONFERENCE 2022
  • (Oral) Hyeongjun Noh, Jimin Lee*, and Eisung Yoon, Deep Learning-based Fokker-Planck-Landau Collision Operator for Fusion Plasma Simulation: A Preliminary Study, The 54th KNS 2022 Spring Meeting
  • Sungpil Yum, Eisung Yoon*, Wonjun Tae, Dongkyu Kim, and Min Sup Hur, Particle motions in Magnetic Island, The 54th KNS 2022 Spring Meeting

Research projects (Ongoing)

  • Three dimensional visualization of plasma and development of simulation data analysis technique for nuclear fusion digital twin (‘23 ~ ‘25, NRF grant-PI: Prof. Sun-Jeong Kim @ Hallym Univ.)
    • ESY
  • Data-driven modeling of governing equation for plasmas (‘23 ~ ‘24, UNIST grant)
    • Darian Figuera, Dami Jung, ESY
  • Development of a unified core-edge-SOL code for divertor design (‘22 ~ ‘24, NRF grant)
    • Sungpil Yum, ESY
  • Development of mesh technology to visualize simulation results in virtual reality (‘22 ~ ‘23, KFE grant)
    • Taeuk Moon, Darian Figuera, ESY
    • Virtual K-STAR (Digital twin) dev
    • gKPSP3 (3D whole device modeling) dev
    • NuBDeC (Fast ion) dev
    • MHD code dev
  • Development of educational program for human resources in nuclear fusion (‘21 ~ ‘24, KHNP grant)
    • ESY
  • Artificial Intelligence based Nuclear Fusion Plasma Collision Simulation (‘22 ~ ‘23, UNIST grant-PI: Prof. Jimin Lee @ UNIST)
    • Hyungjun Noh, Prof. Jimin Lee (UNIST RAMI Lab), ESY

Research projects (Past)

Gyrokinetic Code Development: gKPSP2

  • Research fund granted by National Fusion Research Institute (‘19 ~ ‘21)

Plasma Turbulence near Magnetic Island

  • Interaction between Magnetic Island and Turbulence
    • Research fund granted by National Research Foundation of Korea (‘19 ~ ‘21)
  • Turbulence spreading over Magnetic Island (‘19 ~ )

Multi-Scale Simulation Code Development for the Long-term Safety Management of Spent Nuclear Fuel Pool

  • Research fund granted by National Research Foundation of Korea (‘19 ~ ‘21)