摘要
对沙子流动过程中沙漏重力变化现象进行了理论与实验研究.通过将重力变化过程分为6个阶段,对各阶段沙粒与沙漏作用过程进行详细理论分析,并且从沙漏孔径、沙子粒度、沙漏高度三方面进行了实验探究,得到以上3个因素对沙漏重力变化的影响.
The change of hourglass gravity was researched theoretically and experimentally. By dividing the process of gravity change into six stages, detailed theoretical analysis of the process of sand flow in hourglass in each stage were carried out. The effects of the aperture of hourglass, the grain size of sand, and the height of hourglass were studied the experimentally. Thus, the influence of these three factors on the gravity change of hourglass were obtained.
作者
荆世宏
李川南
胡安平
寻之朋
JING Shi-hong;LI Chuan-nan;HU An-ping;XUN Zhi-peng(Sun Yueqi Honors College,China University of Mining and Technology, Xuzhou 221116, China;School of Physics,China University of Mining and Technology, Xuzhou 221116, China)
出处
《物理实验》
2019年第6期45-49,共5页
Physics Experimentation
基金
中国矿业大学大学生创新创业训练项目(No.201810637)
中国矿业大学课程建设与教学改革项目(No.2017YB31)
中国矿业大学“十三五”品牌培育专业项目(应用物理学)
关键词
沙漏
流动
重力
hourglass
flow
gravity
