According to the theory and method of particle flow code intwodimensions (PFC2D), the block caving law of natural caving mining method was investigated.
The air-liquid two-phase flow of the seed precipitation process intwo air-agitated tanks with different structures was numerical simulated in three dimensions.
以两种不同结构的空气搅拌式种分槽为研究对象，完成了晶种分解过程气—液两相流动的三维数值模拟。
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The paper researches intensively the flood model of twodimensions not steadying flow being used on the design flood of power plant in plain taking Guohua Dingqu power plant of Hebei for example.