Use of viscous pore fluids in dynamic centrifuge modelling
Use of viscous pore fluids in dynamic centrifuge modelling
复制标题
粘性孔隙流体在动态离心机建模中的应用
DOI：
10.1680/jphmg.14.00022
复制
发表时间：
2015
影响因子：
1.9
通讯作者：
G. Madabhushi
中科院分区：
文献类型：
--
作者：
O. Adamidis;G. Madabhushi
从动态离心模型产生的比例律包含一个不一致的动态和扩散事件之间的时间比例。这个问题可以通过降低土壤的渗透性来解决，并借助高粘度孔隙流体。羟丙基甲基纤维素是一种水溶性纤维素醚，广泛用于生产此类液体。本文研究了浓度、温度、老化和剪切速率对羟丙基甲基纤维素溶液粘度的影响，并给出了定量方程。这些信息是为了作为一个指导方针，准备高粘度孔隙流体的动态离心试验。
The scaling laws that arise from dynamic centrifuge modelling contain an inconsistency regarding the scaling of time between dynamic and diffusion events. This problem can be resolved by reducing the permeability of the soil, with the help of high-viscosity pore fluids. Hydroxypropyl methylcellulose is a water-soluble cellulose ether that is widely used to create such fluids. In this paper, the effects that concentration, temperature, ageing and shearing rate have on the viscosity of hydroxypropyl methylcellulose solutions are examined and equations that quantify them are presented. This information is meant to act as a guideline for the preparation of high-viscosity pore fluids for dynamic centrifuge tests.