A long-wave model for a falling upper convected maxwell film inside a tube

HIGHLIGHTS

• What: As the focus of this study is highly viscous films, the Plateau-Rayleigh instability is primarily in mind here. The authors develop an asymptotic model for the free-surface evolution of a falling viscoelastic film using a UCM model for the constitutive equations. Camassa et_al later applied this approach to identify a threshold thickness for Newtonian films inside a tube; films thicker than this threshold were shown to be absolutely unstable, while thinner films were convectively unstable.
• Who: J. Fluid Mech. and collaborators from the https://doiorg/101017/jfm2024., Published online by Cambridge University . . .
  

   

  

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