Demonstration of Reversible Dispersion in a Darcy-Scale Push-Pull Laboratory Experiment
Demonstration of Reversible Dispersion in a Darcy-Scale Push-Pull Laboratory Experiment
复制标题
达西级推拉实验室实验中可逆色散的演示
DOI：
10.1007/s11242-021-01682-3
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发表时间：
2023
影响因子：
2.7
通讯作者：
Sather, Lauren J.
中科院分区：
文献类型：
--
作者：
Neupauer, Roseanna M.;Roth, Eric J.;Crimaldi, John P.;Mays, David C.;Sather, Lauren J.
以罗丹明6G染料为溶质，在填充了单分散玻璃微珠和甘油的50cm50cm4.4 cm装置中进行了溶质迁移实验。通过两个周期的推拉流动模式跟踪染料的移动，在近似径向向外流动和近似径向向内流动之间交替。在实验过程中测量了深度平均浓度，并在后处理过程中对角方向进行积分，以获得浓度的径向分布。用粒子跟踪模拟径向的平流和弥散，包括萃取过程中的可逆弥散，复制了实验结果。结果表明，径向外流阶跃过程中，测量浓度的扩散符合Fickian弥散模型。在径向向内流动的阶跃过程中，扩散是反向的，可以用可逆扩散来模拟。观察到的扩散反转是孔隙空间内不完全混合的迹象。
A solute transport experiment was conducted in a 50 cm50 cm4.4 cm apparatus filled with monodisperse glass beads and glycerin, using Rhodamine 6G dye as the solute. The dye movement was tracked through two cycles of a push-pull flow pattern, alternating between approximately radial outward flow and approximately radial inward flow. Depth-averaged concentration was measured during the experiment and integrated over the angular direction during post-processing to obtain a radial distribution of concentration. The experimental results were replicated using particle tracking, simulating advection and dispersion in the radial direction, including reversible dispersion during extraction. Results show that spreading of the measured concentrations follow a Fickian dispersion model during steps with radial outward flow. During steps with radial inward flow, spreading is reversed and can be modeled as reversible dispersion. The observed reversal in spreading is an indication of incomplete mixing within the pore space.
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影响因子：
2.7
作者：
Roth, Eric J.;Neupauer, Roseanna M.;Mays, David C.;Sather, Lauren J.;Crimaldi, John P.
通讯作者：
Crimaldi, John P.
根据实验保守传输数据评估和预测孔隙尺度反应混合
影响因子：
5.4
作者：
Lazaro J. Perez;J. Hidalgo;Alexandre Puyguiraud;J. Jiménez‐Martínez;M. Dentz
通讯作者：
M. Dentz
准二维折射率匹配多孔介质中达西尺度溶质羽流的激光诱导荧光成像方法
影响因子：
2.7
作者：
Roth, Eric J.;Mays, David C.;Neupauer, Roseanna M.;Sather, Lauren J.;Crimaldi, John P.
通讯作者：
Crimaldi, John P.
磁共振成像实验中观察到的三维非均质多孔介质中水流的数值模拟
影响因子：
5.4
作者：
H. Yoon;Changyong Zhang;C. Werth;A. Valocchi;A. Webb
通讯作者：
A. Webb
流体变形对非均质流中混合引起的化学反应的影响
DOI：
--
发表时间：
2014
期刊：
影响因子：
--
作者：
T. Borgne;T. Ginn;M. Dentz
通讯作者：
M. Dentz