MISC

2009年

高速振動平板間における高分子溶液の流れのマルチスケールシミュレーション(バイオ・マイクロ・スポーツの流れ 分子スケール(2),一般講演)

日本流体力学会年会講演論文集
  • 安田 修悟
  • ,
  • 山本 量一

2009
開始ページ
128
終了ページ
128
記述言語
日本語
掲載種別
出版者・発行元
日本流体力学会

The behavior of supercooled polymer melt composed of short chains with ten beads between rapidly oscillating plates is simulated by using a hybrid simulation of molecular dynamics and computational fluid dynamics. The flow profiles of polymer melt near an oscillating plate are quite different from those of Newtonian fluid. The viscous boundary layer of the melt is much thinner than that of the Newtonian fluid due to the shear thinning of the melt. Three different rheological regimes, i.e., the viscous fluid, viscoelastic liquid, and viscoelastic solid regimes, form over the oscillating plate according to the local Deborah numbers. The melt behaves as a viscous fluid when ωΤ^R≲1, and the crossover between the liquid-like and solid-like regime takes place around ωΤ^α≃1 (where ω is the angular frequency of the plate and Τ^R and Τ^α are Rouse and α relaxation time, respectively).

リンク情報
CiNii Articles
http://ci.nii.ac.jp/naid/110008459796
CiNii Books
http://ci.nii.ac.jp/ncid/AA11567941
URL
http://dl.ndl.go.jp/info:ndljp/pid/10923798
ID情報
  • CiNii Articles ID : 110008459796
  • CiNii Books ID : AA11567941

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