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    • The constancy of the contact angle in viscous liquid motions with pinned contact lines

      P N Shankar R Kidambi

      Volume 65 Issue 1 July 2005 pp 107-116

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/065/01/0107-0116

    • Keywords

       

      Contact angle; viscous motions; pinned contact line

    • Abstract

       

      Consider motion initiated in a viscous liquid in a smooth walled container. The liquid is initially at rest under uniform pressure from an inert gas of negligible inertia. We show that if the contact line is pinned and the interface is single valued, the contact angle has to remain constant throughout the motion. This is true even for motions of finite amplitude. Some implications of the result are discussed.

    • Author Affiliations

       

      P N Shankar1 R Kidambi1

      1. Computational and Theoretical Fluid Dynamics Division, National Aerospace Laboratories, Bangalore - 560 017, India

    • Dates

       
      Published
      July 2005
      Manuscript received
      3 September 2004
      Manuscript revised
      31 January 2005
      Accepted
      16 February 2005

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