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[02670] Glacier sliding as a viscous fluid flow modulated by cavitation

  • Session Time & Room : 4E (Aug.24, 17:40-19:20) @D401
  • Type : Contributed Talk
  • Abstract : Glacial ice slides due to lubrication by a thin film of water. Separation of ice from the bed results in water-filled cavities that modulate the stress balance, with important implications for glacier flow. We model the problem as a linearised Stokes flow over a wavy boundary. Complex variable methods are used to solve a Riemann-Hilbert problem that is coupled to a kinematic equation for cavity size. The model is used to discuss glacier friction laws.
  • Classification : 76M40, 86A40, 76D07, 76M45
  • Format : Talk at Waseda University
  • Author(s) :
    • Ian Hewitt (University of Oxford)