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Fast Spontaneous Transport of a Non-wetting Fluid in a Disordered Nanoporous Medium
Transport in Porous Media ( IF 2.7 ) Pub Date : 2021-07-12 , DOI: 10.1007/s11242-021-01638-7
Vladimir Borman 1, 2 , Anton Belogorlov 1, 2 , Ivan Tronin 1, 2
Affiliation  

The experimental study of cooperative fast transport of non-wetting fluid in a disordered nanoporous medium is carried out in this work. New experimental data for simultaneous measurement of fluid flow, filled pore volume and pressure have been obtained. Dependencies of critical pressure and flow on porous particle mass and rapid compression energy have also been established. A new transport mechanism is proposed. The dynamics of fluid transport is represented as a process of evolution of two macroscopic growing modes of transport—spontaneous transport that occurs when new critical pressure of dynamic percolation transition and fluid transport caused by a constant critical pressure under impact compression of nanoporous particles suspension. Following the theory of critical dynamics of multiscale phenomena, a condition for the interaction of modes is proposed. Taking into account this interaction, rapid spontaneous transport is adjusted to the slow impact of impact compression, and the experimental dependencies should be described by the slow mode—impact compression. Such transport occurs simultaneously in two different time scales and is determined by the properties of spontaneous transport. The experimental dependencies are quantitatively described in the kinetic model. Under conditions of filled pores, the response of a fluid transport to impact is characterized by positive feedback.



中文翻译:

无序纳米多孔介质中非润湿流体的快速自发传输

本文开展了非润湿流体在无序纳米多孔介质中协同快速输运的实验研究。已获得用于同时测量流体流量、填充孔隙体积和压力的新实验数据。临界压力和流量对多孔颗粒质量和快速压缩能量的依赖性也已经建立。提出了一种新的传输机制。流体传输的动力学被表示为两种宏观增长传输模式的演变过程——动态渗透转变的新临界压力时发生的自发传输和纳米多孔颗粒悬浮液在冲击压缩下由恒定临界压力引起的流体传输。遵循多尺度现象的临界动力学理论,提出了模式相互作用的条件。考虑到这种相互作用,快速自发传输被调整为冲击压缩的缓慢影响,并且实验依赖性应该用慢速模式——冲击压缩来描述。这种运输同时发生在两个不同的时间尺度上,并由自发运输的特性决定。在动力学模型中定量描述了实验依赖性。在充满孔隙的条件下,流体输送对冲击的响应以正反馈为特征。这种运输同时发生在两个不同的时间尺度上,并由自发运输的特性决定。在动力学模型中定量描述了实验依赖性。在充满孔隙的条件下,流体输送对冲击的响应以正反馈为特征。这种运输同时发生在两个不同的时间尺度上,并由自发运输的特性决定。在动力学模型中定量描述了实验依赖性。在充满孔隙的条件下,流体输送对冲击的响应以正反馈为特征。

更新日期:2021-07-12
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