摘要
对三种有代表性的粮食(大米、稻谷和玉米)在不同堆载高度下的物理性质和阻力特性作了比较详尽的实验研究。结果表明:粮食的孔隙率、粮层阻力与粮食堆载高度之间存在明显的非线性关系。在粮食机械通风数值模拟和工程应用中必须加以重视。
This article studied particularly grain physics and grain bulk resistance of three representative grains（ rice, paddy and corn）. The results indicate between the small opening ratio, the grain bulk resistance and the height there exists evidently non-linear relation. This is very impotant to CFD and engineering application of mechanical ventilation.
出处
《实验室研究与探索》
CAS
2008年第8期32-34,共3页
Research and Exploration In Laboratory
关键词
孔隙率
粮层阻力
表现风速
沿程压力降
small opening ratio
grain bulk resistance
surface velocity
pressure drop along the height
