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中国沙漠 ›› 2007, Vol. 27 ›› Issue (5): 843-850.

• 天气与气候 • 上一篇    下一篇

尘卷风的研究进展

顾兆林1, 邱 剑2, 鲁录义2, 赵永志3

  

  1. 1.西安交通大学人居学院环境科学与技术系,陕西 西安 710049; 2.西安交通大学能动学院,陕西 西安 710049; 3.清华大学化工系,北京 100084
  • 收稿日期:2006-06-14 修回日期:2006-07-25 出版日期:2007-09-20 发布日期:2007-09-20

Advances in Study of Dust Devils

GU Zhao-lin1, QIU Jian2, LU Lu-yi2, ZHAO Yong-zhi3

  

  1. 1.Department of Environmental Science and technology, School of Human Settlements and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China;2.School of Energy and Power Engineering, Xi’an 710049, China;3.Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2006-06-14 Revised:2006-07-25 Online:2007-09-20 Published:2007-09-20

摘要:

尘卷风是一种发生在大气对流边界层内,能将沙尘或者碎屑等物体扬到高空、具有温度较高的低压核心和较短生命周期的旋风,是自然界中一种最常见的自然现象,也是气象学中最独特的内容。回顾尘卷风的研究历史,主要包括尘卷风的气象要素与环境效应,尘卷风研究的三种方法及取得的成果,粉尘颗粒在尘卷风中的悬移运动及其分层机制,粉尘活动与颗粒荷电,提出了进一步研究的主要内容。

关键词: 尘卷风, 沙尘暴, 颗粒荷电, 气固两相流

Abstract: Dust devils are unique meteorological phenomena, occurring in the atmosphere boundary layer. Dust devil, usually of short duration, has a low pressure and warm-core, swirling dust, debris, and sand to high levels. This paper reviews the advances of dust devil studies, including the physical characteristics of dust devils and their environmental effect; some results obtained through three kinds of research tools-observation, experiment and numerical simulation; the particle transportation in the air flow field of dust devil and the dust stratification; the electrostatic field by particulate impact. Some aspects are finally summarized for further investigations.

Key words: dust devil, dust storm, particulate electrostatic effect, gas-solid two\|phase flow

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