摘要
本文利用有限区域中尺度动力模式MM5和沙尘暴传输扩散模式相耦合的基础上,重点讨论在沙尘传输过程中,热漂移应力对沙尘粒子的作用,进行了气体-颗粒流动输送过程的并行数值模拟,计算结果与我国今年3月18日至3月21日发生的强沙尘暴实况资料进行了对比,获得了沙尘迁徙的规律。
A model has been developed on the basis of the mesoscale dynamic model (MM5) coupling with a dust-transport model with a geographic information database to simulate the process of gas-particle transport, especially well-concerning the factor of the dust thermal drift and calculating on the parallel computers. Comparisons between observations of strong dust-storm eruption in March, 20 this year and model calculations indicate that the model is able to reproduce some key features of the dust transport.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2003年第2期255-258,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金重大项目资助(No.59995460)
关键词
沙尘暴
数值模拟
热漂移
气体颗粒两相流
并行计算
dust storm
numerical simulation
heat drift
gas-solid two phase flow
parallel computing
