• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Fracture and Strength of Solids >Dynamics and Numerical Modeling of Sandy Desert Morphology caused by Aeolian Transport of Sand Particles
【24h】

Dynamics and Numerical Modeling of Sandy Desert Morphology caused by Aeolian Transport of Sand Particles

机译：沙漠粉末砂粒造成沙漠形态的动态与数值模型

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Wind caused the much sediment fluxes leading to both erosion and deposits in the sandy desertification area, and the much kind of beautiful sandy desert morphologies are formed. This is really crucial to the development of the dynamic behaviour of aeolian transport of sand particles. The sand desert morphologies are representing significant information archives for understanding the desertification problem. Dynamics and numerical modeling provides an essential tool for studying the aeolian transport of sand particle and morphology of sand desert such as ripple and dune. In this study, the mathematical models based on the dynamics are analyzed by considering the several keys as saltation, creep, suspension, avalanche and its threshold condition etc. for sand morphology forming processes. Then due to sand flow field real characteristics, the establishing process of stream flow field are analyzed, and the implication relationships as well as the coupling process between uniform stream flow field and the sand flow field are analyzed. Finally, the sand flow field models is discretized, and different kinds of sandy desert morphology are simulated by considering the sand particle size and mass in fixed, semi-fixed and free sand flow field area.
机译：风引起了沉积物，导致沙漠化地区的侵蚀和沉积物，形成了很多美丽的沙漠形态。这对砂粒子的风神经动态行为的发展至关重要。沙漠形态学代表了了解荒漠化问题的重要信息档案。动力学和数值模型为研究了沙漠和沙漠之类的沙漠砂粒子和形态等的基本工具。在该研究中，通过将几个键视为盐，蠕变，悬浮液，雪崩及其阈值条件等来分析基于动态的数学模型。用于砂形态形成过程。然后，由于砂流场实际特性，分析了流流场的建立过程，并分析了均匀流流场和砂流场之间的含义关系以及耦合过程。最后，通过考虑固定，半固定和游离砂流场区域中的砂粒径和质量，模拟了砂流场模型的分离化，并且模拟了不同种类的沙漠形态。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号