摘要：为了分析连续性颗粒物料搅拌机对粉体颗粒的混合效果和出料的连续性,运用Fluent计算流体力学软件、标准k-ε湍流模型和Simple算法,对连续性搅拌机的内部流场进行流固耦合数值模拟,对比分析3种不同进料口位置对搅拌效果的影响。结果表明,最佳的进料口位置位于搅拌机上端面的下方,在该情况下,物料停留时间较长,各物料之间混合充分,物料流入、流出质量基本达到平衡,能够满足搅拌机的连续性生产要求。

关键词：颗粒；搅拌机；流固耦合；数值分析

Abstract：To research the effect of mixing and the continuity of access to materials, Fluent software k-ε turbulence model and Simple algorithm were used to simulate the internal flow of continuous particle materials blender. The mixing effect under the three different inlet position was analyzed. The results show that the best inlet position is located in the bottom of upper surface of the blender. In this case, the materials have a longer residence time, the materials are fully mixed. The amount of the material's inflow and outflow basically balance, which ensure the continuity of production.

Keywords: particle；blender；fluid-structure interaction；nume rical analysis