...键词：颗粒流数值模拟；扩展基础；砂土；上拔荷载；荷载-位移 [gap=10627]Key words: particle flow code numerical simulation; extended foundation; sand; uplift loading; relationship ..
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以自然崩落采矿法为研究对象，利用二维颗粒流数值模拟(PFC2D)的原理和方法，研究了自然崩落法矿体崩落规律。
According to the theory and method of particle flow code in two dimensions (PFC2D), the block caving law of natural caving mining method was investigated.
利用FLUENT数值软件模拟了除尘器内气流和颗粒的流场状态，直观地分析了实验结果。
Gas flow and particle field situation in the dust collector are simulated by FLUENT numerical software and the experiment results are directly analyzed.
根据数值模拟的结果，描绘出炉膛内的壁面热负荷分布、两相流场、温度场、煤粉颗粒轨迹等。
The wall heat flux distribution, two-phase flow field, temperature field and pulverized coal particles trajectory in furnace are described according to the calculation results.
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