Unsteady flow of viscoelastic fluid modeled by beeds, springs and dampers

Takuji Ishikawa, Nobuyoshi Kawabata, Katsushi Fujita, Yutaka Miyake

研究成果: Article査読

抄録

Flow of viscoelastic fluid is commonly analyzed by using constitutive equati6ns. In this paper, bead-spring-damper macro model is proposed as an alternative to analyze viscoelastic flow. The tetrahedral structure of beads, springs and dampers models a gathering of interwined polymer chains. Behavior of the bead-spring-damper structure is computed under start-up flow, stop flow and oscillatory flow conditions. Stress overshoot, stress relaxation, dynamic viscosity and dynamic modulus are investigated. The results show that the effect of elasticity appears strongly in the unsteady flow, and that the bead-spring-damper macro model can express characteristics of viscoelastic fluid consistently.

本文言語English
ページ(範囲)1287-1294
ページ数8
ジャーナルNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
66
645
DOI
出版ステータスPublished - 2000 5月
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学

フィンガープリント

「Unsteady flow of viscoelastic fluid modeled by beeds, springs and dampers」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル