Turbulent mixing by the interfacial instabilities in magnetized plasmas
Project/Area Number |
26287147
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Plasma science
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Research Institution | Osaka University |
Principal Investigator |
Sano Takayoshi 大阪大学, レーザー科学研究所, 助教 (80362606)
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Co-Investigator(Kenkyū-buntansha) |
森田 太智 九州大学, 総合理工学研究院, 助教 (30726401)
西原 功修 大阪大学, レーザー科学研究所, 名誉教授 (40107131)
坂和 洋一 大阪大学, レーザー科学研究所, 准教授 (70242881)
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Project Period (FY) |
2014-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
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Keywords | レーザー宇宙物理学 / 磁気流体不安定 / レーザー実験 / レーザー宇宙物理 / プラズマ・核融合 / 天体物理学 / 流体力学 / レーザープラズマ実験 / 磁気流体シミュレーション / 強磁場 / 流体不安定 |
Outline of Final Research Achievements |
We have investigated interfacial instabilities, such as Richtmyer-Meshkov instability, in magnetized plasmas by numerical simulations and laboratory laser experiments. Theoretically, it is found that the magnetic field can reduce the growth of the Richtmyer-Meshkov instability significantly. When the seed field is relatively weak, it can be amplified by the fluid motions. The critical field strength is given by the Alfven number defined by the ratio of the growth velocity and Alfven speed at the interface. To confirm these effects, we performed laser plasma experiments by using the GEKKO laser system in Osaka University. The growth of the interface fluctuations has been observed successfully by optical radiography method. In addition, the B-dot probe have measured the signals of amplified magnetic field through the turbulent motions driven by the interfacial instabilities.
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Report
(5 results)
Research Products
(46 results)
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[Journal Article] Interaction of a highly radiative shock with a solid obstacle2017
Author(s)
Koenig M.、Michel Th.、Yurchak R.、Michaut C.、Albertazzi B.、Laffite S.、Falize E.、Van Box Som L.、Sakawa Y.、Sano T.、Hara Y.、Morita T.、Kuramitsu Y.、Barroso P.、Pelka A.、Gregori G.、Kodama R.、Ozaki N.、Lamb D.、Tzeferacos P.
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Journal Title
Physics of Plasmas
Volume: 24
Issue: 8
Pages: 082707-082707
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Magnetohydrodynamics of laser-produced high-energy-density plasma in a strong external magnetic field2017
Author(s)
K. Matsuo, H. Nagatomo, Z. Zhang, P. Nicolai, T. Sano, S. Sakata, S. Kojima, S. Ho Lee, K.F.F. Law, Y. Arikawa, Y. Sakawa, T. Morita, Y. Kuramitsu, S. Fujioka, H. Azechi
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Journal Title
Physical Review E
Volume: 95
Issue: 5
Pages: 053204-053204
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Dynamic compression of dense oxide (Gd3Ga5O12) from 0.4 to 2.6 TPa: Universal Hugoniot of fluid metals2016
Author(s)
N. Ozaki, W. J. Nellis, T. Mashimo, M. Ramzan, R. Ahuja, T. Kaewmaraya, T. Kimura, M. Knudson, K. Miyanishi, Y. Sakawa, T. Sano, and R. Kodama
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Journal Title
Sci. Rep.
Volume: 6,
Issue: 1
Pages: 26000-26000
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Dynamic X-ray diffraction observation of shocked solid iron up to 170 GPa2016
Author(s)
A. Denoeud, N. Ozaki, A. Benuzzi-Mounaix, H. Uranishi, Y. Kondo, R. Kodama, E. Brambrink, A. Ravasio, M. Bocoum, J.-M. Boudenne, M. Harmand, F.Guyot, S. Mazevet, D. Riley, M. Makita, T. Sano, Y. Sakawa, Y. Inubushi, G. Gregori, M. Koenig, and G. Morard
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Journal Title
PNAS
Volume: 113(28)
Issue: 28
Pages: 7745-7749
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Shock Compression Response of Forsterite above 250 Gpa2016
Author(s)
T. Sekine, N. Ozaki, Y.Asaumi, T. Kimura, K. Miyanishi, B. Albertazzi, Y. Sato,Y. Sakawa, T.Sano, S. Sugita, T. Matsui, and R. Kodama
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Journal Title
Sci. Adv.
Volume: 2(8)
Issue: 8
Pages: 31600157-31600157
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] TIME EVOLUTION of KELVIN-HELMHOLTZ VORTICES ASSOCIATED with COLLISIONLESS SHOCKS in LASER-PRODUCED PLASMAS2016
Author(s)
Y. Kuramitsu, A. Mizuta, Y. Sakawa, H. Tanji, T. Ide, T. Sano, M. Koenig, A. Ravasio, A. Pelka, H. Takabe, C. D. Gregory, N. Woolsey, T. Moritaka, S. Matsukiyo, Y. Matsumoto, and N. Ohnishi
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Journal Title
The Astrophysical Journal
Volume: 828
Issue: 2
Pages: 93-93
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Decaying shock studies of phase transitions in MgO-SiO2 systems:implications for the Super-Earths’ interiors2016
Author(s)
R. M. Bolis, G. Morard, T. Vinci, A. Ravasio, E. Bambrink, M. Guarguaglini, M. Koenig, R. Musella, F. Remus, J. Bouchet, N. Ozaki, K. Miyanishi, T. Sekine, Y. Sakawa, T. Sano, R. Kodama, F. Guyot, A. Benuzzi-Mounaix
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Journal Title
Geophys.Res.Lett.
Volume: 43(18)
Issue: 18
Pages: 9475-9483
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Model Experiment of Magnetic Field Amplification in Laser-Produced plasmas via the Richtmyer-Meshkov instability2016
Author(s)
Y. Kuramitsu, N. Ohnishi, Y. Sakawa, T. Morita, H. Tanji, T. Ide, K. Nishio, C. D. Gregory, J. N. Waugh, N. Booth, R. Heathcote, C. Murphy, G. Gregori, J. Smallcombe, C. Barton, A. Diziere, M. Koenig, N. Woolsey, A Mizuta, T. Sugiyama, S. Matsukiyo, T. Moritaka, T. Sano, and H. Takabe
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Journal Title
Physics of Plasmas
Volume: 23
Issue: 3
Pages: 032126-032126
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Magnetic reconnection driven by Gekko XII lasers with a Helmholtz capacitor-coil target2016
Author(s)
X. X. Pei, J. Y. Zhong, Y. Sakawa, Z. Zhang, K. Zhang, H. G. Wei, Y. T. Li, Y. F. Li, B. J. Zhu, T. Sano, Y. Hara, S. Kondo, S. Fujioka, G. Y. Liang, F. L. Wang, and G. Zhao
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Journal Title
Physics of Plasmas
Volume: 23
Issue: 3
Pages: 032125-032125
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Thomson scattering measurement of a collimated plasma jet generated by a high-power laser system2016
Author(s)
T. Ishikawa, Y. Sakawa, T. Morita, Y. Yamaura, Y. Kuramitsu, T. Moritaka, T. Sano, R. Shimoda, K. Tomita, K. Uchino, S. Matsukiyo, A. Mizuta, N. Ohnishi, R. Crowston, N. Woolsey, H. Doyle, G. Gregori, M. Koenig, C. Michaut, A. Pelka, D. Yuan, Y. Li, K. Zhang, J. Zhong, F. Wang, and H. Takabe
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Journal Title
Journal of Physics: Conference Series
Volume: 688
Pages: 012098-012098
DOI
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Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Computational study of magnetic field compression by laser-driven implosion2015
Author(s)
Nagatomo, H; Johzaki, T; Asahina, T; Sunahara, A; Sano, T; Sakagami, H; Mima, K; Fujioka, S; Shiraga, H; Azechi, H
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Journal Title
NUCLEAR FUSION
Volume: 55
Issue: 9
Pages: 093028-093028
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] P-ρ-T measurements of H2O up to 260 GPa under laser-driven shock loading2015
Author(s)
T. Kimura, N. Ozaki, T. Sano, T. Okuchi, T. Sano, K. Shimizu, K. Miyanishi, T. Terai, T. Kakeshita, M. French, R. Redmer, Y. Sakawa, and R. Kodama
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Journal Title
Journal of Chemical Physics
Volume: 142
Issue: 16
Pages: 164504-164504
DOI
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Peer Reviewed / Open Access
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[Presentation] レーザー実験による磁化プラズマ中におけるRichtmyer-Meshkov不安定2015
Author(s)
佐野孝好, 坂和洋一, 蔵満康浩, 森田太智, 藤岡慎介, Zhe Zhang, 原由希子, 近藤さらな, 松尾一樹, 坂田匠 平, 小島完興, 重森啓介, 弘中陽一郎, 尾崎典雅
Organizer
日本天文学会2015年春季年会
Place of Presentation
大阪大学 (大阪府、豊中市)
Year and Date
2015-03-18 – 2015-03-21
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