Engineered transparent emulsion to optically study particulate flows in yield stress fluids
Engineered transparent emulsion to optically study particulate flows in yield stress fluids
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工程透明乳液,用于光学研究屈服应力流体中的颗粒流
DOI:
10.1007/s00348-019-2858-3
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发表时间:
2020
影响因子:
2.4
通讯作者:
Hormozi, Sarah
中科院分区:
文献类型:
--
作者:
Rashedi, Ahmadreza;Ovarlez, Guillaume;Hormozi, Sarah
AbstractWe have engineered a model suspension consisting of rigid particles and yield stress fluids. The suspending fluid is an emulsion with adjustable density, rheological behavior, and refractive index. We explain the design procedure in detail. The optically transparent emulsion opens the possibility of exploring particle tracking/image velocimetry (PIV/PTV) techniques in studying dynamic flows involving particles in complex fluids. As a proof of concept, we have performed PTV to provide accurate measurements of solid volume fractions for the dispersion of particles in a Taylor–Couette cell.Graphic abstract
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