沙尘暴(气体-颗粒)两相流及其并行数值模拟  

DUST-STORM (GAS AND PARTICLE) TWO-PHASE FLOW NUMERICAL SIMULATION AND PARALLEL COMPUTING

作　　者：王夕华[1] 张军[1] 顾璠[1] 王体健[2] 汤健平[2] 

机构地区：[1]东南大学洁净煤发电与燃烧技术教育部重点实验室,江苏南京210096 [2]南京大学大气科学系,江苏南京210093

出　　处：《工程热物理学报》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)

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.

关 键 词：沙尘暴 数值模拟 热漂移 气体颗粒两相流 并行计算 

分 类 号：P445.4[天文地球—大气科学及气象学]