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NLFFF calculations of the solar coronal magnetic field based on Hinode observations

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21EU0912 Subject Category: Space and Astronautical Science PDF Responsible Representative: Yoshifumi Saito, Institute of Space and Astronautical Science, Department of Solar System Sciences Contact Information: Toshifumi Shimizu(shimizu.toshifumi@jaxa.jp) Members: Yusuke Kawabata, Toshifumi Shimizu, Takahiro Hasegawa Abstract Our study focuses on understanding of the mechanism responsible for the occurrence of the solar flares. We derive 3D magnetic field structure in the corona by performing a 3D magnetohydrodynamics simulation using vector magnetic field・・・<<read more>>

Flowfield around blades with optimized airfoil for six-roter Mars helicopter

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21ECMP14 Subject Category: Competitive Funding PDF Responsible Representative: Yoshikazu Makino, Aeronautical Technology Directorate, Silent Supersonic Aircraft Team Contact Information: Masahiro Kanazaki, Tokyo Metropolitan University(kana@tmu.ac.jp) Members: Masahiro Kanazaki, Daisuke Kikuchi, Yuki Kishi, Keita Kimura, Masahiko Sugiura, Hideaki Sugawara, Kuniyuki Takekawa, Yasutada Tanabe Abstract In this project, a study was conducted to find the optimum blade shape for a 6-rotor helicopter for Mars exploration, The optimization method by Efficient Global Optimization and・・・<<read more>>

Research of Precipitation Measuring Mission

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21ER1400 Subject Category: Space Technology PDF Responsible Representative: Riko Oki, Earth Observation Research Center Contact Information: Takuji Kubota(kubota.takuji@jaxa.jp) Members: Tomohiko Higashiuwatoko, Takeshi Masaki, Munehisa K. Yamamoto, Takuji Kubota, Tomoko Tashima, Moeka Yamaji, Kazuhiro Sakamoto Abstract Calculation of the global rainfall map derived from Tropical Rainfall Measuring Mission (TRMM) and the Global Precipitation Measurement (GPM) during a period from 2000 to 2014 using the GSMaP algorithm . Checks of consistency between・・・<<read more>>

Research for data assimilation of satellite global rainfall map

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21ER0201 Subject Category: Space Technology PDF Responsible Representative: Riko Oki, Director, Space technology Directorate I, Earth Observation Research Center Contact Information: Space technology Directorate I, Earth Observation Research Center, Takuji Kubota(kubota.takuji@jaxa.jp) Members: Koji Terasaki, Yingwen Chen, Kaya Kanemaru, Shunji Kotsuki, Hisashi Yashiro Abstract This study explores an effective use of satellite data including GSMaP and GPM/DPR through an advanced ensemble data assimilation method for improving numerical weather prediction (NWP) and・・・<<read more>>

The modeling of Crossflow Type Atomization

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JAXA Supercomputer System Annual Report February 2021-January 2022 Report Number: R21ETET51 Subject Category: Skills Acquisition System PDF Responsible Representative: AOYAMA Takashi, Director, Aviation Technology Directrate, Aircraft Lifecycle Innovation Hub Contact Information: Yukari Sakano(y.sakano@akane.waseda.jp) Members: Yukari Sakano Abstract This research aims to construct the numerical calculation model for analyzing crossflow atomization, which is often used in main burners of aerospace engines, with high accuracy and low calculation costs. Although only spherical droplets are replaced to Lagrange particles to decrease calculation costs・・・<<read more>>