The effect of particle shape on suspension viscosity and implications for magmatic flows
The effect of particle shape on suspension viscosity and implications for magmatic flows
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DOI：
10.1029/2011gl047167
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发表时间：
2011-07-06
影响因子：
5.2
通讯作者：
Mader, H. M.
中科院分区：
文献类型：
--
作者：
Mueller, S.;Llewellin, E. W.;Mader, H. M.
含晶体岩浆和熔岩的流变性取决于悬浮晶体的形状和体积分数。本文给出了固体颗粒在牛顿液体中单分散悬浮液的模拟流变学实验结果，其中颗粒体积分数phi和长径比r(P)是系统变化的。我们发现Phi对粘度的影响被Maron-Piells模型很好地捕捉到，并且该模型在所研究的粒子长宽比(0.04)范围内是有效的
The rheology of crystal-bearing magma and lava depends on both the shape and volume fraction of the suspended crystals. We present the results of analogue rheometric experiments on monodisperse suspensions of solid particles in a Newtonian liquid, in which particle volume fraction phi and aspect ratio r(p) are varied systematically. We find that the effect of phi on viscosity is well captured by the Maron-Pierce model, and that this model is valid across the range of particle aspect ratios investigated (0.04