中国物理B ›› 2014, Vol. 23 ›› Issue (4): 44501-044501.doi: 10.1088/1674-1056/23/4/044501
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
张晓丹a, 夏成杰a, 肖相辉b, 王宇杰a
Zhang Xiao-Dan (张晓丹)a, Xia Cheng-Jie (夏成杰)a, Xiao Xiang-Hui (肖相辉)b, Wang Yu-Jie (王宇杰)a
摘要: We present a fast synchrotron X-ray tomography study of the packing structures of rods with different aspect ratios. Utilizing the high flux of the X-rays generated from the third-generation synchrotron source, we can complete a high-resolution tomography scan within a short period of time, after which the three-dimensional (3D) packing structure can be obtained for the subsequent structural analysis. The image phase-retrieval procedure has been implemented to enhance the image contrast. We systematically investigated the effects of particle shape and aspect ratio on the structural properties including packing density and contact number. It turns out that large aspect ratio rod packings will have wider distributions of free volume fraction and larger mean contact numbers.
中图分类号: (Static sandpiles; granular compaction)