Takahiro Miyoshi

Last Updated :2023/01/05

Affiliations, Positions
Graduate School of Advanced Science and Engineering, Assistant Professor
E-mail
miyoshisci.hiroshima-u.ac.jp
Self-introduction
My research interests lie in the field of theoretical and computational plasma physics. In particular, by developing state-of-the-art numerical methods, I have been exploring nonlinear plasma dynamics in extreme parameter regions. Furthermore, I aim to develop an interdisciplinary field of plasma physics and high-energy nuclear physics.

Basic Information

Major Professional Backgrounds

  • 1998/04/01, 2001/03/31, Japan Atomic Energy Research Institute, Postdoctral Research Fellow

Educational Backgrounds

  • Hiroshima University, Graduate School of Science, Japan, 1995/04, 1998/03
  • Hiroshima University, Graduate School of Science, Japan, 1993/04, 1995/03
  • Hiroshima University, Faculty of Science, Japan, 1989/04, 1993/03

Academic Degrees

  • Doctor of Science, Hiroshima University
  • Master of Science, Hiroshima University

Educational Activity

  • [Bachelor Degree Program] School of Science : Physics : Physics
  • [Master's Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Physics Program
  • [Doctoral Program] Graduate School of Advanced Science and Engineering : Division of Advanced Science and Engineering : Physics Program

In Charge of Primary Major Programs

  • Physics

Research Fields

  • Mathematical and physical sciences;Plasma science;Plasma science
  • Interdisciplinary science and engineering;Computational science;Computational science
  • Mathematical and physical sciences;Earth and planetary science;Space and upper atmospheric physics
  • Mathematical and physical sciences;Astronomy;Astronomy

Research Keywords

  • plasma physics
  • magnetohydrodynamics
  • computational fluid dynamics
  • solar terrestrial physics

Affiliated Academic Societies

  • The Japan Society of Plasma Science and Nuclear Fusion Research, 2008
  • The Astronomical Society of Japan, 2006
  • The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS), 2006
  • The Physical Society of Japan, 1996
  • American Geophysical Union, 1995

Educational Activity

Course in Charge

  1. 2022, Undergraduate Education, Second Semester, Computational Physics
  2. 2022, Graduate Education (Doctoral Program) , First Semester, Exercises on Advanced Research Presentation
  3. 2022, Graduate Education (Master's Program) , 1Term, Exercise in Physics I
  4. 2022, Graduate Education (Master's Program) , 2Term, Exercise in Physics I
  5. 2022, Graduate Education (Master's Program) , 3Term, Exercise in Physics II
  6. 2022, Graduate Education (Master's Program) , 4Term, Exercise in Physics II
  7. 2022, Graduate Education (Master's Program) , 1Term, Special Exsecise in Physics A
  8. 2022, Graduate Education (Master's Program) , 2Term, Special Exsecise in Physics A
  9. 2022, Graduate Education (Master's Program) , 3Term, Special Exsecise in Physics B
  10. 2022, Graduate Education (Master's Program) , 4Term, Special Exsecise in Physics B

Research Activities

Academic Papers

  1. A low-dissipation HLLD approximate Riemann solver for a very wide range of Mach numbers, JOURNAL OF COMPUTATIONAL PHYSICS, 446, 20211201
  2. Plasmoid-dominated Turbulent Reconnection in a Low-beta Plasma, ASTROPHYSICAL JOURNAL LETTERS, 894(1), 202005
  3. A Multistate Low-dissipation Advection Upstream Splitting Method for Ideal Magnetohydrodynamics, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 248(1), 202005
  4. A Magnetohydrodynamic Relaxation Method for Non-force-free Magnetic Field in Magnetohydrostatic Equilibrium, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 247(1), 202003
  5. A short note on reconstruction variables in shock capturing schemes for magnetohydrodynamics, JOURNAL OF COMPUTATIONAL PHYSICS, 423, 20201215
  6. A New HLLD Riemann Solver with Boris Correction for Reducing Alfven Speed, ASTROPHYSICAL JOURNAL, 874(1), 20190320
  7. Mechanism of non-steady Petschek-type reconnection with uniform resistivity, PHYSICS OF PLASMAS, 26(3), 201903
  8. A High-order Weighted Finite Difference Scheme with a Multistate Approximate Riemann Solver for Divergence-free Magnetohydrodynamic Simulations, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 242(2), 201906
  9. Magnetohydrodynamic simulation code CANS plus : Assessments and applications, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 71(4), 201908
  10. Boosting magnetic reconnection by viscosity and thermal conduction, PHYSICS OF PLASMAS, 23(7), 2016
  11. Fast magnetic reconnection supported by sporadic small-scale Petschek-type shocks, PHYSICS OF PLASMAS, 22(10), 2015
  12. Vlasov simulation of the interaction between the solar wind and a dielectric body, PHYSICS OF PLASMAS, 18(1), 2011
  13. Magnetohydrodynamic structure of a plasmoid in fast reconnection in low-beta plasmas, PHYSICS OF PLASMAS, 18(2), 2011
  14. A comparative study of divergence-cleaning techniques for multi-dimensional MHD schemes, Plasma and Fusion Research, 6, 2401124-1-2401124-5, 2011
  15. Comparative Study of Global MHD Simulations of the Terrestrial Magnetosphere With Different Numerical Schemes, IEEE TRANSACTIONS ON PLASMA SCIENCE, 38(9), 2229-2235, 2010
  16. The HLLD Approximate Riemann Solver for Magnetospheric Simulation, IEEE TRANSACTIONS ON PLASMA SCIENCE, 38(9), 2236-2242, 2010
  17. Performance Measurement of Magnetohydrodynamic Code for Space Plasma on the Various Scalar-Type Supercomputer Systems, IEEE TRANSACTIONS ON PLASMA SCIENCE, 38(9), 2254-2259, 2010
  18. MAGNETOHYDRODYNAMIC MODELING FOR A FORMATION PROCESS OF CORONAL MASS EJECTIONS: INTERACTION BETWEEN AN EJECTING FLUX ROPE AND AN AMBIENT FIELD, ASTROPHYSICAL JOURNAL, 718(2), 1305-1314, 2010
  19. Implementation of a non-oscillatory and conservative scheme into magnetohydrodynamic equations, EARTH PLANETS AND SPACE, 61(7), 895-903, 2009
  20. A quantitative MHD study of the relation among arcade shearing, flux rope formation, and eruption due to the tearing instability, JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 113(A3), 2008
  21. Robust and efficient Riemann solvers for MHD, Astronomical Society of the Pacific Conference Series, 385, 279-284, 2008
  22. Three-Dimensional Structure Analysis of Coronal Magnetic Field in AR NOAA 10930 Based on Vector Magnetogram Observations with Hinode/SOT, Astronomical Society of the Pacific Conference Series, 397, 110-114, 2008
  23. ★, A multi-state HLL approximate Riemann solver for ideal magnetohydrodynamics, JOURNAL OF COMPUTATIONAL PHYSICS, 208(1), 315-344, 2005
  24. Simulation study of energy conversion process in magnetohydrodynamic turbulence due to magnetorotational instability, JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 73(1), 94-101, 2004
  25. ★, A global MHD simulation of the Jovian magnetosphere interacting with/without the IMF, Journal of Geophysical Research, 106(A6), 10723-10742, 2001
  26. Spontaneous variation in a rotating magnetosphere, Journal of Plasma and Fusion Research, 4, 536-539, 2001
  27. A spatial discretization of the MHD equations based on the finite volume-spectral method, JAERI Research, 2000(23), 1-17, 2000
  28. A global MHD model of the Jovian magnetosphere, JAERI Research, 2000(31), 1-47, 2000
  29. Simulation study on magneto-gravity instabilities in magnetic shear field, Observational Plasma Astrophysics - Five Years of Yohkoh and Beyond, 331-332, 1998
  30. Nonlinear dynamics of magnetic buoyancy instabilities in a sheared magnetic field, Physics of Plasmas, 5(7), 2582-2589, 1998
  31. MHD simulation of a rapidly rotating magnetosphere interacting with the external plasma flow, Geophysical Research Letters, 24(21), 2627-2630, 1997
  32. Three-dimensional simulation study of the magnetohydrodynamic relaxation process in the solar corona. I. Spontaneous generation of Taylor-Heyvaerts-Priest state, Astrophysical Journal, 433(1), 361-378, 1994

External Funds

Acceptance Results of Competitive Funds

  1. KAKENHI(Grant-in-Aid for Scientific Research (C)), 2020, 2022
  2. KAKENHI, 2015, 2018
  3. KAKENHI(Grant-in-Aid for Scientific Research (S)), 2020, 2024
  4. KAKENHI, 2019, 2021
  5. KAKENHI, Photon Physics Revealing Hidden Properties of Quark Matter in the ALICE Experiment, 2014, 2018
  6. KAKENHI, Research of turbulent magnetic reconnection using high-resolution MHD simulations, 2009, 2011
  7. KAKENHI, Multi-physics Plasma Dynamics with Macro-Micro Interlocked Simulations, 2007, 2009
  8. KAKENHI, Study of Magnetic Helicity Dynamics in Solar and Space Plasmas, 2004, 2006