屈服应力流体中非胶体颗粒悬浮液行为的均匀化方法
Homogenization approach to the behavior of suspensions of noncolloidal particles in yield stress fluids
摘要：
本文用非线性均匀化方法研究了刚性颗粒在非牛顿流体中的悬浮行为。估计的复合材料的整体性能。在Herschel-Bulkley悬浮流体的情况下，它表明，具有整体各向同性的悬浮液的性质可以令人满意地建模为Herschel-Bulkley流体的指数等于悬浮流体的。在大应变率水平的屈服应力和一致性的估计。这些估计值与Mahaut等人[J. Rheol. 52，287-313（2008）]和文献中发现的实验数据。
英文摘要：
The behavior of suspensions of rigid particles in a non-Newtonian fluid is studied in the framework of a nonlinear homogenization method. Estimates for the overall properties of the composite material are obtained. In the case of a Herschel-Bulkley suspending fluid, it is shown that the properties of a suspension with overall isotropy can be satisfactory modeled as that of a Herschel-Bulkley fluid with an exponent equal to that of the suspending fluid. Estimates for the yield stress and the consistency at large strain rate levels are proposed. These estimates compare well to both experimental data obtained by Mahaut et al [J. Rheol. 52, 287-313 (2008)] and to experimental data found in the literature.
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