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- W407776918 abstract "A 3D cellular automaton is disclosed that enables modelling the dynamics of bedform. The overall mechanism can be regarded as a Markov chain, a discrete system with a finite number of configurations and probabilities of transition between them. Physical processes such as erosion, deposition and transport are modelled at the elementary scale by nearest neighbour interactions. At larger length scales, topographic structures arise from internal relationships based upon these short range interactions. This article focuses on crescentic barchan dunes that are used as a benchmark for our numerical model of bedforms. Length and time scales of isolated barchan dunes are studied in order to constrain the parameters of the model. Then we discuss pattern selection and the evolution of a population of dunes over a wide range of initial and boundary conditions. We eventually show that our model can be generalized to bedforms through the increase of the sand availability." @default.
- W407776918 created "2016-06-24" @default.
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- W407776918 date "2006-08-02" @default.
- W407776918 modified "2023-09-23" @default.
- W407776918 title "Modelling of dune patterns by short range interactions" @default.
- W407776918 cites W2014786311 @default.
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- W407776918 doi "https://doi.org/10.1201/9781439833896.ch112" @default.
- W407776918 hasPublicationYear "2006" @default.
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