Finite-Reynolds-number effects in steady, three-dimensional airway reopening.

  title={Finite-Reynolds-number effects in steady, three-dimensional airway reopening.},
  author={Andrew L Hazel and Matthias Heil},
  journal={Journal of biomechanical engineering},
  volume={128 4},
Motivated by the physiological problem of pulmonary airway reopening, we study the steady propagation of an air finger into a buckled elastic tube, initially filled with viscous fluid. The system is modeled using geometrically non-linear, Kirchhoff-Love shell theory, coupled to the free-surface Navier-Stokes equations. The resulting three-dimensional, fluid-structure-interaction problem is solved numerically by a fully coupled finite element method. Our study focuses on the effects of fluid… CONTINUE READING
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