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中国沙漠 ›› 2015, Vol. 35 ›› Issue (3): 526-533.DOI: 10.7522/j.issn.1000-694X.2014.00072

• 沙漠与沙漠化 • 上一篇    下一篇

沙丘动力学数值模拟研究方法综述(Ⅰ):沙丘周围流场模拟

吕萍, 董治宝   

  1. 中国科学院寒区旱区环境与工程研究所 沙漠与沙漠化重点实验室, 甘肃 兰州 730000
  • 收稿日期:2014-05-20 修回日期:2014-06-26 出版日期:2015-05-20 发布日期:2015-05-20
  • 作者简介:吕萍(1972-),女,甘肃宁县人,博士,研究员,主要从事风沙物理与风沙地貌数值模拟研究。Email:lvping@lzb.ac.cn
  • 基金资助:
    国家自然科学基金项目(41271021,41171010)

A Review on Dynamic Numerical Simulation of Sand Dune (Ⅰ)-Flow Field

Lü Ping, Dong Zhibao   

  1. Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2014-05-20 Revised:2014-06-26 Online:2015-05-20 Published:2015-05-20

摘要: 沙丘地貌学包括沙丘形态、组成物质及形成过程等3个方面的研究,野外观测、物理模拟及数值模拟是沙丘形成过程研究的主要方法。目前,随着"3S"技术及计算机技术的发展,沙丘动力学数值模拟方法在沙丘地貌研究中已很活跃。沙丘周围流场变化导致沙丘不同位置气流剪切力的不同,对沙丘形态的塑造起着至关重要的动力控制作用。本文主要介绍了沙丘周围流场动力学数值模拟研究工作所采用的方法及所取得的主要成就。

关键词: 沙丘动力学, 数值模拟, 流场

Abstract: Dune dynamics includes morphology, composition and formation process. There are mainly three methods used on formation process study: field experiment, physical simulation and numerical simulation. At the moment, with the technical development of 3S and computer, the dynamic numerical simulation on formation process of sand dune is very active. The flow variation around sand dunes results in difference of shear stress, which makes control effect on the pattern of sand dunes. The mainly used methods and achievements on the flow around sand dunes are presented in this paper.

Key words: dune dynamics, numerical simulation, flow field

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