Coarsening of Two Dimensional Foams on a Curved Surface
Coarsening of Two Dimensional Foams on a Curved Surface
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二维泡沫在曲面上的粗化
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
D. Durian
中科院分区：
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作者：
A. E. Roth;Christopher W. Jones;D. Durian
提交给3月12日美国物理学会曲面上二维泡沫粗化会议，宾夕法尼亚大学亚当·罗斯，康奈尔大学克里斯·琼斯，宾夕法尼亚大学道格·榴莲-我们报告了泡沫粗化和常曲率闭合二维半球单元中气泡分布的统计。使用这种池，可以观察单个气泡并测量它们的粗化率。我们的结果与Avron和Levine对von Neumann定律的修正是一致的。我们观察了给定边数的气泡的相对频率，发现与平坦的二维细胞相比，边数较少的气泡数量较少。我们还测量了n边气泡的平均边数m(N)的值，发现它与Aboav-Weaire定律大体一致，尽管比平室有更大的偏差。宾夕法尼亚亚当·罗斯大学提交日期：2011年11月9日电子表格版本1.4
Submitted for the MAR12 Meeting of The American Physical Society Coarsening of Two Dimensional Foams on a Curved Surface ADAM ROTH, University of Pennsylvania, CHRIS JONES, Cornell University, DOUG DURIAN, University of Pennsylvania — We report on foam coarsening and statistics of bubble distributions in a closed, two dimensional, hemispheric cell of constant curvature. Using this cell it is possible to observe individual bubbles and measure their coarsening rates. Our results are consistent with the modification to von Neumann’s law predicted by Avron and Levine. We observed the relative frequencies of bubbles with a given number of sides and found a shortage of bubbles with few sides as compared to a flat two dimensional cell. We also measured the value of m(n), the average number of sides of an n sided bubble, and found general agreement with the Aboav-Weaire law, although there was greater deviation than for a flat cell. Adam Roth University of Pennsylvania Date submitted: 09 Nov 2011 Electronic form version 1.4