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        • 昆虫飛翔と非定常渦ダイナミクス
        • 回転流体が作るパターン
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        • Flying/Swimming/Transport hydrodynamics from molecules to insect
        • Free-surface deformation dynamics of rotating flow
        • Pattern formation dynamics in convections of microorganism suspensions and binary fluids
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  • Top
  • Member
  • Research
    • 最近の研究から
      • 流体系の位相縮約
      • 局在生物対流
      • 昆虫飛翔と非定常渦ダイナミクス
      • 回転流体が作るパターン
    • Research Topics
      • Flying/Swimming/Transport hydrodynamics from molecules to insect
      • Free-surface deformation dynamics of rotating flow
      • Pattern formation dynamics in convections of microorganism suspensions and binary fluids
    • Awards
  • 学生さんへ
    • 卒業研究をお考えの皆さんへ
    • 大学院進学を希望する皆さんへ
    • 表彰された学生たち
  • Links
  • Biofluid Workshps
  • Media&Reviews
  • 連絡先
  • Access to Univ. / Visiting Hiroshima region

Pattern formation dynamics in convections of microorganism suspensions and binary fluids

  • Localized convection patterns and their dynamics in binary fluid and in microorganism suspension
  • Bifurcation of various convection patterns in binary fluid mixture
  • Formation process of global flow structure 

Selected Publications:

  1. Yamashita H, Kamikubo T, Muku K, Suematsu NJ, Izumi S and Iima M, “Emergence of a Euglena bioconvection spot controlled by non-uniform light”, Front. Ecol. Evol. (2023) 11:1132956. doi: 10.3389/fevo.2023.1132956
  2. E. Shoji, H. Nishimori, A. Awazu, S. Izumi and M. Iima, “Localized bioconvection patterns and their initial state dependency in Euglena gracilis in an annular container”, J. Phys. Soc. Jpn, 83 (2014) 043001 

3. T. Watanabe, M. Iima and Y. Nishiura, “A skeleton of collision dynamics — Hierarchical network structure among even-symmetric steady pulses in binary fluid convection —,“ SIAM Journal of Applied Dynamical Systems, 15 (2016) 789–806 (Open Access)

  • Paper 2 was selected as JPSJ Papers of Editors’ Choice
  • Bioconvection study appeared in “The Science News” (「科学新聞」) on 25th, Apr., 2014.
  • Bioconvection study was selected as “Outstanding Study in the Annual Meeting 2013”(「注目研究 in 年会 2013」) in the annual meeting of JSFM (The Japan Society of Fluid Mechanics) 2013; also selected as “Outstanding Study in the Annual Meeting 2014”(「注目研究 in 年会 2014」) in the annual meeting of JSFM (The Japan Society of Fluid Mechanics) 2014

 
  • 円盤周りの流れ
  • 山下特任助教の研究が「ながれ」表紙になりました
  • 直進するミドリムシ周りの流れ
  • 一様流中の2円柱の同位相同期
  • 円盤からの翼端渦

論文出版

B02-2班の山下博士特任助教(広島大学)、山口崇幸講師(滋賀大学)、末松信彦教授(明治大学)、飯間信教授(広島大学)らの共著論文
“Formation of a single bioconvection spot in Euglena suspension induced by negative phototaxis”が Physics of Fluids から出版されました。https://t.co/Kg2L42bMLT

— ジオラマ行動力学 (@dioramaethology) July 15, 2025

Zoological Award 2025 受賞

安藤規泰先生(前橋工科大)たちとの共著論文 "Electromyography of Flight Muscles in Free-Flying Chestnut Tiger Butterfly, Parantica sita" (Zoological Science(2024); https://t.co/RAaRq1I95x) が、Zoological Science Award 2025 に選ばれました!https://t.co/amHcnkiAwn

— 生命流体数理研究室@広島大 (@ForFluid) July 15, 2025

出張授業

広島県の尾道北高校で出張講義を行いました!https://t.co/eh5t2rx3tF

— 生命流体数理研究室@広島大 (@ForFluid) June 30, 2025

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