论文标题
重新访问亚毫米尺寸的聚集体的粘性属性
Revisiting sticking property of submillimetre-sized aggregates
论文作者
论文摘要
在行星科学中，了解灰尘聚集体的物理特性至关重要。在这项研究中，我们重新审视了亚毫米尺寸骨料的粘性性能。我们透露，先前研究中使用的“有效表面能”模型低估了分离两个粘量骨料所需的临界拉力。我们还基于两个接触球的规范理论得出了临界拉力的新的简单模型。我们的发现表明，在讨论亚毫米量骨料的松散团聚物的物理特性时，我们不需要考虑灰尘聚集体的“有效表面能”。
Understanding the physical properties of dust aggregates is of great importance in planetary science. In this study, we revisited the sticking property of submillimetre-sized aggregates. We revealed that the "effective surface energy" model used in previous studies underestimates the critical pulling force needed to separate two sticking aggregates. We also derived a new and simple model of the critical pulling force based on the canonical theory of two contacting spheres. Our findings indicate that we do not need to consider the "effective surface energy" of dust aggregates when discussing the physical properties of loose agglomerates of submillimetre-sized aggregates.
