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A DELAY-DIFFUSION DESCRIPTION FOR TWO-DIMENSIONAL CONTAMINANT DISPERSION[J]. Chinese Journal of Theoretical and Applied Mechanics, 1994, 26(1): 20-30. DOI: 10.6052/0459-1879-1994-1-1995-518
Citation: A DELAY-DIFFUSION DESCRIPTION FOR TWO-DIMENSIONAL CONTAMINANT DISPERSION[J]. Chinese Journal of Theoretical and Applied Mechanics, 1994, 26(1): 20-30. DOI: 10.6052/0459-1879-1994-1-1995-518
shu

A DELAY-DIFFUSION DESCRIPTION FOR TWO-DIMENSIONAL CONTAMINANT DISPERSION

  • 上海应用与力学研究所,上海大学,200072

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    • Abstract
  • In the earlier stage of dispersion process,the rate of dispersion aSsociatedwith earlier discharge is relatively large because the memory term extends further back intime。 In order to investigate the early properties of two-dimensional dispersion,we proposethe delay-diffusion equation as following:which is based on the ansatz derived by Smith(198 1).The analytical expressions forD_(xx):,D_(yx),D_(xy) ,D_(yy) and,are obtained.
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