Selection of dune shapes and velocities . Part 2 : A two-dimensional modelling

  title={Selection of dune shapes and velocities . Part 2 : A two-dimensional modelling},
  author={Bruno Andreotti and P. Claudin},
We present in this paper a simplification of the dune model proposed by Sauermann et al. which keeps the basic mechanisms but allows analytical and parametric studies. Two kinds of purely propagative two dimensional solutions are exhibited: dunes and domes, which, by contrast to the former, do not show avalanche slip face. Their shape and velocity can be predicted as a function of their size. We recover in particular that dune profiles are not scale invariant (small dunes are flatter than the… CONTINUE READING
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