The two-phase flows over the sand bed and in the pipe are simulated, the different distributions of volumetric fraction are found and analyzed.
计算了沙层上及直管中的两相流的流动，发现了颗粒浓度两种截然不同的分布，并对此进行了分析。
2
And the sand ripples on the surface arise obviously with the increasing silt mass fraction and wind speed, but disappear as silt mass fraction exceeds 15%.
Further results indicate that the thermal conductivity of sand mold and the high fraction of binder alloying for the low melt point in the block will affect the quality of FGM.