Spreading fronts and fluctuations in sedimentation
Spreading fronts and fluctuations in sedimentation
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DOI：
10.1063/1.1578486
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发表时间：
2003-07-01
影响因子：
4.6
通讯作者：
Hinch, J
中科院分区：
文献类型：
--
作者：
Bergougnoux, L;Ghicini, S;Hinch, J
实验和数值模拟研究了悬浮液顶部的扩散界面或“前沿”。发现前沿的宽度随时间线性增长，这主要是由于在非常稀的实验中颗粒尺寸的多分散性，并且仅由于模拟中颗粒密度的波动。远离前线，粒子速度的波动被发现不衰减。(C)2003年，美国物理学会。
A diffuse interface or "front" at the top of the suspension is investigated experimentally and numerically. The width of the front is found to grow linearly in time, mainly due to a polydispersity of particle size in the very dilute experiments, and due only to fluctuations in particle density in the simulations. Away from the front, the fluctuations in the particle velocities are found not to decay. (C) 2003 American Institute of Physics.