A numerical model of the evolution of sand saltation with consideration of two feedback mechanisms.

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  • Author(s): Ren S;Ren S; Huang N
  • Source:
    The European physical journal. E, Soft matter [Eur Phys J E Soft Matter] 2010 Dec; Vol. 33 (4), pp. 351-8. Date of Electronic Publication: 2010 Nov 30.
  • Publication Type:
    Journal Article; Research Support, Non-U.S. Gov't
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: EDP Sciences Country of Publication: France NLM ID: 101126530 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1292-895X (Electronic) Linking ISSN: 12928941 NLM ISO Abbreviation: Eur Phys J E Soft Matter Subsets: MEDLINE
    • Publication Information:
      Original Publication: Les Ulis, France : Secaucus, NJ : EDP Sciences : Società italiana di fisica ; Springer, [2000-
    • Subject Terms:
      Chemical Phenomena* ; Models, Theoretical*; Salts/*chemistry ; Silicon Dioxide/*chemistry; Air ; Algorithms ; Friction ; Particle Size ; Time Factors ; Wind
    • Abstract:
      Saltation is one of the important transport modes in the movement of wind-blown grains. Its evolution was considered to be a wind-particle self-regulating process. Recent researches indicate that the particle mid-air collision greatly influences the sand movement, thus the mid-air collision mechanism may highly contribute to the evolution of wind-sand flow. A theoretical model is suggested to mathematically describe the evolution of wind-sand flow by considering the exiting wind-particle feedback mechanism as well as the particle mid-air collision mechanism. Based on this model, the time of the entire process to reach a steady state, the variation curves of the sand transport rate with time and the mid-air collision probability with time are calculated. The results show that the mid-air collision mechanism also contributes significantly to the stabilization of the saltation process.
    • References:
      Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Sep;64(3 Pt 1):031305. (PMID: 11580330)
      Phys Rev Lett. 2006 Jan 13;96(1):018001. (PMID: 16486519)
      Eur Phys J E Soft Matter. 2006 Feb;19(2):129-38. (PMID: 16491314)
      Science. 1988 Aug 12;241(4867):820-3. (PMID: 17829176)
    • Accession Number:
      0 (Salts)
      7631-86-9 (Silicon Dioxide)
    • Publication Date:
      Date Created: 20101130 Date Completed: 20110404 Latest Revision: 20211020
    • Publication Date:
      20240829
    • Accession Number:
      10.1140/epje/i2010-10681-4
    • Accession Number:
      21113819