Results 11 to 20 of about 1,600,688 (352)
Yield stress and elastic modulus of suspensions of noncolloidal particles in yield stress fluids [PDF]
Journal of Rheology / Transactions of the Society of Rheology;
Society of Rheology -- Transactions 52, 1 (2008) 287-313, 2008 We study experimentally the behavior of isotropic suspensions of noncolloidal particles in yield stress fluids. This problem has been poorly studied in the literature, and only on specific materials. In this paper, we manage to develop procedures and materials that allow us to focus on the purely mechanical contribution of the particles to the yield ...
Mahaut, Fabien +3 more
arxiv +7 more sources
Darcy law for yield stress fluid [PDF]
Physical Review Letters, 2018 Predicting the flow of non-Newtonian fluids in porous structure is still a challenging issue due to the interplay betwen the microscopic disorder and the non-linear rheology. In this letter, we study the case of an yield stress fluid in a two-dimensional
De Luca, Andrea +3 more
core +5 more sources
arXiv, 2018 Normal stresses in complex fluids lead to new flow phenomena because they can be comparable to or even larger than the shear stress itself. In addition, they are of paramount importance for formulating and testing constitutive equations for predicting non-viscometric flow behavior.
de Cagny, Henri +4 more
arxiv +3 more sources
No steady state flows below the yield stress. A true yield stress at last? [PDF]
, 2009 For more than 20 years it has been debated if yield stress fluids are solid below the yield stress or actually flow; whether true yield stress fluids exist or not. Advocates of the true yield stress picture have demonstrated that the effective viscosity increases very rapidly as the stress is decreased towards the yield stress.
Moller, Peder CF +2 more
arxiv +3 more sources
2.5D printing of a yield-stress fluid. [PDF]
Sci Rep, 2023 AbstractWe report on direct ink writing of a model yield-stress fluid and focus on the printability of the first layer, the one in contact with the supporting substrate. We observe a diversity of deposition morphologies that depends on a limited set of operational parameters, mainly ink flow rate, substrate speed and writing density, and also on ...
Colanges S +3 more
europepmc +4 more sources
Stress Overshoots in Simple Yield Stress Fluids [PDF]
Physical Review Letters, 2021 Soft glassy materials such as mayonnaise, wet clays, or dense microgels display under external shear a solid-to-liquid transition. Such a shear-induced transition is often associated with a non-monotonic stress response, in the form of a stress maximum referred to as "stress overshoot".
Roberto Benzi +5 more
openaire +8 more sources
Journal of Rheology, 2019 Normal stresses in complex fluids lead to new flow phenomena because they can be comparable to, or even larger than, the shear stress. In addition, they are of paramount importance for formulating and testing constitutive equations for predicting nonviscometric flow behavior.
Mina Fazilati +5 more
openaire +3 more sources
On the Yield Stress of Magnetorheological Fluids [PDF]
Chemical Engineering Science, 2022 Magnetorheological fluids (MRFs) are a category of functional materials that exhibit magneto-mechanical coupling. These materials exhibit a reversible and instantaneous change from a free-flowing Newtonian fluid to a semi-solid state upon application of a magnetic field.
Khajehsaeid, H. +2 more
openaire +1 more source
Sliding flows of yield-stress fluids [PDF]
Journal of Fluid Mechanics, 2021 Abstract
Chaparian, Emad, Tammisola, Outi
openaire +5 more sources
Direct evidence of plastic events and dynamic heterogeneities in soft-glasses [PDF]
, 2014 By using fluid-kinetic simulations of confined and concentrated emulsion droplets, we investigate the nature of space non-homogeneity in soft-glassy dynamics and provide quantitative measurements of the statistical features of plastic events in the ...
Benzi, R. +5 more
core +7 more sources