筒仓贮料流态的颗粒流数值模拟  

The PFC dem simulation of the flow state of silo

作　　者：翟振威 原国平 张峰涛 

机构地区：[1]焦作一建建设工程有限公司 [2]焦作匠人工程技术咨询有限公司

出　　处：《山西建筑》2008年第35期90-92,共3页Shanxi Architecture

摘　　要：采用基于离散单元法的颗粒流程序建立了一种筒仓缩尺模型,对筒仓缩尺模型进行了静态侧压力的数值模拟,并把模拟结果与原型筒仓的Janssen计算值进行了比较,发现模拟结果与试验和理论值吻合较好,对该模型筒仓进行了卸料过程的模拟,得到了贮料的流动形态。In this paper the silo modal in PFC based on the distinct element has been established. The numerical simulation of the static lateral pressure on the silo scale model, and the results are compared with Janssen＇ s solutions of the prototype silo. It founded that the simulative resultis consistency with the theorize result and the lab test. The discharging process of the scale model is simulated, the flow patterns of stored materials during discharge were obtained.

关 键 词：筒仓模型 物料流态 颗粒流 

分 类 号：TU311[建筑科学—结构工程]