Absence of pressure sensitivity of apparent wall slip in pressure-driven flow of non-colloidal suspensions
Absence of pressure sensitivity of apparent wall slip in pressure-driven flow of non-colloidal suspensions
复制标题
非胶体悬浮液压力驱动流动中表观壁滑移不存在压力敏感性
DOI:
10.1007/s00397-014-0815-x
复制
发表时间:
2015
期刊:
影响因子:
2.3
通讯作者:
Hans-Joachim Schmid
中科院分区:
文献类型:
--
作者:
Sven Pieper;Nadine Kirchhoff;Hans-Joachim Schmid
We investigated an explanation for the length dependence of apparent wall slip in capillary and slit die experiments that had been implied in earlier studies. Firstly, we used a very long slit die fitted with six equidistant pressure transducers and an adjustable outlet. It was found that, all other parameters being equal, the impact of pressure on the flow behavior of suspensions was not different from the impact on the unfilled matrix fluid. Particle-related properties, such as apparent wall slip, were therefore not influenced by pressure as assumed by other authors. Secondly, we determined wall slip velocities by both the Mooney method and numerical simulation, based on an implementation of Phillips constitutive equation for particle migration. This led to a similar length dependence of wall slip as had been reported in an earlier work. We concluded that this was due to the transient nature of particle migration and its interrelationship with apparent wall slip, rather than an influence of pressure.
登录
查看更多内容
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Y. Lam;Z. Y. Wang;X. Chen;S. Joshi
通讯作者:
S. Joshi
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
C. Rauwendaal;F. Fernandez
通讯作者:
F. Fernandez
影响因子:
3.1
作者:
Ju Min Kim;Songbok Lee;Chongyoup Kim
通讯作者:
Ju Min Kim;Songbok Lee;Chongyoup Kim
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
J. Peón;M. Aguilar;J. Vega;B. Amo;J. Martínez
通讯作者:
J. Martínez
DOI:
--
发表时间:
1976
期刊:
影响因子:
--
作者:
J. Leblanc
通讯作者:
J. Leblanc