Hello, this is Satsuki Okumura, a 1st year master’s student at Osaki Laboratory. We attended the 7th International Workshop on Numerical Modeling of High-Temperature Superconductors, HTS2020, which was held online on June 22nd and 23rd, 2021. This workshop, which was held in Nancy, France in 2008, aims to present research and exchange opinions on numerical modeling of superconductivity in an international framework. It was scheduled to be held in Nancy in 2020, but it was postponed due to the influence of COVID-19 and was held the other day.
Research and development of modeling tools and applications is one of the important themes as applied research of superconductivity. High-temperature superconductivity is thermally and electromagnetically non-linear, and the design and prediction of device behavior becomes extremely complicated due to hysteresis, anisotropy, interaction with other functional materials, etc., so the development of modeling is required. You can. At this workshop, research presentations were made in various categories such as modeling methods, multiphysics problems such as AC loss, and applications such as aircraft motors, and I learned a lot from my own research. was. I was particularly interested in research on the analysis of motors for electric aircraft.
In line with global efforts, Japan is also accelerating various research and development with the aim of becoming a carbon-neutral decarbonized society in 2050. Reduction of CO2 emissions is an important issue in the green growth strategy, and energy transformation in the transportation sector is expected to contribute significantly to them. Internationally, the aviation sector has set a goal of reducing by more than 50% by 2050 from the 2005 level. Regarding electrification, each country is conducting various research and development including conceptual design and detailed design of propulsion system. The major issues are how to reduce the size and weight, achieve high output density, make it highly efficient, and ensure at least the same level of reliability as the current engine. When electricity is used for the propulsion system, it becomes necessary to pass a high voltage or a large current, so it is necessary to utilize superconducting technology. Furthermore, since superconductivity can generate a high magnetic field, it is thought that it can be made smaller and lighter. I think that the shape of the aircraft will also be developed with designs and materials that are different from the current shape. I would like to contribute to the research of superconducting properties that contribute to them and do my best. Superconductivity not only moves large objects, but is also attracting attention as a quantum computer device related to the algorithm of the quantum repeater, which was my research in college, and has a wide range of applications such as satellites, wind power generation, and ships. It’s a very wide and very interesting field.
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