摘要
探究了汽油与酒精之间周期性振荡交换,实验得知汽油与酒精之间能产生周期性振荡现象,且内外筒溶液具有明显的分层现象,得到振荡周期与孔长和孔径关系为T∝L1/d4的实验结论;内筒初始酒精液面高度几乎不影响振荡周期,定性研究内筒酒精液面高度变化与孔长、周期次序的关系,最后给出在两不稳定平衡点间内液面位置变化量的表达式.
The periodical oscillation and exchange between gasoline and alcohol are explored. It is found from experiment that periodical oscillation can be generated between gasoline and alcohol, and obvious stratification is found in both inner and outer containers. We get the experimental conclusion that oscillation cycle time is proportional to the length of capillary and inversely proportional to the inner diameter of capillary to the power of 4（ T L1/d4）. However, the initial level of alcohol in inner container almost does not affect the oscillation cycle time. We also explore the relation between the change of the level of alcohol in inner container and the change of the length of Capillary and cycle order. Finally, the expression for the change of the level of alcohol in inner container between two unstable equilibrium points is given.
出处
《大学物理》
北大核心
2012年第3期35-39,共5页
College Physics
基金
黑龙江省教育厅科学技术研究项日(11521309)
齐齐哈尔大学教育科研重点项目(2009004)资助
关键词
周期性振荡
交换
振荡周期
汽油和酒精间振荡
分层
periodical oscillation
exchange
oscillation cycle time
oscillation between the gasoline and alcohol
stratification
