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Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions
(Elsevier B.V., 2016-12-01)
In the present work, we present an approach to handle transient flows of elasto-viscoplastic thixotropic (EVPT) materials under the action of the gravity force field and subjected to free-surface boundary conditions that ...
The avalanche effect of an elasto-viscoplastic thixotropic material on an inclined plane
(Elsevier B.V., 2017-09-01)
The so-called avalanche effect is one of the fingerprints of thixotropic materials. This self-reinforcing process where the decrease in viscosity, due to a rejuvenation process triggered by a stress field, induces a motion ...
Normal and oblique drop impact of yield stress fluids with thixotropic effects
(Cambridge Univ Press, 2019-10-10)
Normal and oblique drop impact on a solid surface is numerically analysed for yield stress fluids. A rich diversity of results are generated as a consequence of the exploration of the inertial, elastic, plastic and thixotropic ...
Study of the colloidal stability and optical properties of sunscreen creams
(2019-01-01)
Sunscreen formulations containing inorganic/organic filters or mixture of them were synthesized by oil/water dispersion. The viscosity measurements show that sunscreen formulations are time-dependent non-Newtonian fluids. ...
Rheological properties of frozen concentrated orange juice (FCOJ) as a function of concentration and subzero temperatures
(Taylor & Francis Inc, 2007-01-01)
Data on flow properties of Frozen Concentrated Orange Juice (FCOJ) produced from oranges cv. Pera-Rio (65.04 Brix, 8.8% w/w pulp content, 2.5% w/w pectin, 3.84% citric acid, 1.293 g cm(-3)) from -18 to 0 degrees C were ...
A Modified Elasto-viscoplastic Thixotropic Model For Two Commercial Gelled Waxy Crude Oils
(SPRINGERNEW YORK, 2015)
The effect of hydrophobic and hydrophilic fumed silica on the rheology of magnetorheological suspensions
(JOURNAL RHEOLOGY AMER INST PHYSICS, 2009)
We investigate magnetorheological fluids (MRFs) prepared with carbonyl iron powder and different types of hydrophobic and hydrophilic fumed silica. The rheological properties of the MRF suspensions were investigated with ...
Aging, rejuvenation and thixotropy in yielding magnetorheological fluids
(Springer, 2013-05)
The yielding behavior of dilute magnetorheological (MR) fluids has been investigated using creep–recovery tests. At very low stress levels, MR fluids behave in the linear viscoelastic regime as demonstrated by the fact ...
Impact of capillary drops of complex fluids on a solid surface
(Amer Inst Physics, 2019-12-01)
The drop impact on a solid surface is studied in the context of complex fluids that exhibit viscoplastic, viscoelastic, and thixotropic behavior. The effects of rheology and surface tension are investigated for a range of ...