Dynamics of the Deposited Grain Beds in a Silo

利用模拟人脚地压的模型仓，定性地阐明了堆积层上重物的沉降和埋置现象，以及堆积层排出物的流态，该模型仓的规模缩小到乡村升降机天然仓的1 / 15。首次用摄像机观察了重物的沉降和掩埋现象及流态。然后，利用视频图像数据对重物的沉降位移和示踪剂在排出物中的位移进行数值计算。通过试验，明确了漏斗锥角和漏斗流量对重料沉降掩埋现象和流型的影响。

The sedimentation and burying phenomena of the weights placed on the deposited grain beds, which simulated the ground pressure of the human foot, and the flow pattern in the discharge of the deposited grain beds were clarified qualitatively using the model silo which was reduced to a scale of one-fifteenth the natural silo of the country elevator.The sedimentation and burying phenomena of the weight and the flow pattern were first observed by-using a video camera.Then, the sedimentation displacement of the weight and the displacement of the tracer in the discharge were numerized with the video image data.As a result of this test, the effect of the cone angle and the flow rate of hoppers on the sedimentation and burying phenomena of the weight and the flow pattern were cleared.