接触線の過渡運動時における動的接触角の決定機構

DOI Web Site Web Site 参考文献16件

書誌事項

タイトル別名
  • Primary Mechanism on the Determination of the Dynamic Contact Angle on an Accelerating Contact Line
  • セッショクセン ノ カト ウンドウジ ニ オケル ドウテキ セッショクカク ノ ケッテイ キコウ

この論文をさがす

抄録

Estimation of the contact angle on a moving contact line is one of the important factors for the prediction of the liquid surface geometry contacting with solid. In this study the dynamic contact angle on an accelerating vertical glass rod is investigated both experimentally and numerically to elucidate the effect of the acceleration of the contact line. The experiment was held by using ethylene-glycol and its aqueous solution as test fluid. The measured contact angle in the transient state clearly deviated from that for the steady state, depending on the acceleration of the rod. Numerical simulation shows that the acceleration and the gravity terms in the momentum equation, which are relatively remarkable in macroscopic scale, are not responsible for such deviation in the contact angle. Rather, the dependence of the microscopic contact angle on the acceleration, estimated with the viscous bending model, should be the primary factor on the deviation of the contact angle.

収録刊行物

  • 混相流

    混相流 29 (5), 421-431, 2016

    日本混相流学会

参考文献 (16)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ