堆煤场煤尘起尘及其在大气中运移扩散的理论研究

以堆煤场煤尘为对象，在对粉尘颗粒在大气中的受力状况进行分析的基础上，对开放性尘源表面的粉尘起尘及其在大气中扩散的运动轨迹进行了理论研究和数值模拟。利用Lagrange方法，研究了堆煤场煤尘颗粒群的扩散运动方程，为利用计算机对颗粒运动轨迹进行模拟提供了科学依据，同时为评价露天矿堆煤场对环境造成的污染提供了理论指导。

THEORETICAL RESEARCH ON ARISING AND TRANPORTATION AND SPREADING REGULATION OF COAL DUST AT THE COALYARD IN THE ATMOSPHERE

On the basis of analyzing the strength state of the dust particle in the atmosphere,the theoretical research and numerical simulation were made by studying the arising and velocity trail of the dust which is on the surface of the dust source.The diffusion movement equation of group dust particle have been studied by using Lagrange caculating method.This work offers scientific basis for utilizing the computer to imitate the orbit of moving particle,as well as the theoretical direction for appraising the pollution to the environment which caused by the open coalyard.