中文摘要：

由 Eulerian 途径的一个煤气固体的注射者的流动行为上的计算研究被执行。煤气的阶段与 k- 被建模狂暴的模型和粒子阶段与小粒的流动的运动理论被建模。由 Eulerian 二液体的模型(TFM ) 的模拟与由分离元素方法(DEM ) 和实验的相应结果相比。它被看模仿的结果在对的合理同意的那 TFM 试验性并且模仿的 DEM 结果。基于 TFM 模拟，煤气固体的流动模式，煤气的速度，粒子速度和静电干扰在不同开车喷气速度， backpressure 和会聚的节角度下面的压力被获得。结果证明平均轴的煤气的速度严厉地减少了然后稍微在水平传送增加了到经常的价值的时间尖叫。轴的粒子速度开始增加了然后减少的时间一般水准，但是在会聚的节的插头区域，粒子速度显著地再次增加了到最大的价值。总体上，静态的压力分发变化趋势被发现在驾驶煤气的速度， backpressure 和会聚的节角度上独立。然而，静态的压力随会聚的节角度和煤气的喷气速度的增加增加了。到 backpressure 的静态的压力的差别与增加 backpressure 增加了。

英文摘要：

A computational study on the flow behavior of a gas-solid injector by Eulerian approach was carried out. The gas phase was modeled with k-ε turbulent model and the particle phase was modeled with kinetic theory of granular flow. The simulations by Eulerian two-fluid model （TFM） were compared with the corresponding results by discrete element method （DEM） and experiments. It was showed that TFM simulated results were in reasonable agreement with the experimental and DEM simulated results. Based on TFM simulations, gas-solid flow pattern, gas velocity, particle velocity and the static pressure under different driving jet velocity, backpressure and convergent section angle were obtained. The results showed that the time average axial gas velocity sharply decreased and then slightly increased to a constant value in the horizontal conveying pipe. The time average axial particle velocity increased initially and then decreased, but in the outlet region of the convergent section the particle velocity remarkably increased once more to the maximal value. As a whole, the static pressure distribution change trends were found to be independent on driving gas velocity, backpressure and convergent section angle. However, the static pressure increased with increase of convergent section angle and gas jet velocities. The difference of static pressure to backpressure increased with increasing backpressure.