Normal stress differences in non-Brownian fiber suspensions
نویسندگان
چکیده
منابع مشابه
Normal stress differences in non-Brownian fiber suspensions
In this paper, we present an experimental study of the normal stress differences that arise in nonBrownian rigid fiber suspensions subject to a shear flow. While early measurements of the normal stress in fiber suspensions in Newtonian fluids measured only N1 −N2, the recent work of Snook et al. J. Fluid Mech. 758 486 (2014) and the present paper provide the first measurements of N1 and N2 sepa...
متن کاملMicrostructure in sheared non-Brownian concentrated suspensions
The shear-induced microstructure in non-Brownian suspensions is studied. The Pair Distribution Function in the shear plane is experimentally determined for particle volume fractions ranging from 0.05 to 0.56. Transparent suspensions made of PMMA particles (172μm in diameter) dispersed in a fluorescent index matched Newtonian liquid is sheared in a wide gap Couette rheometer. A thin laser sheet ...
متن کاملNormal stresses in non - Brownian suspensions : bulk rheology and particle migration
Submitted for the DFD10 Meeting of The American Physical Society Normal stresses in non-Brownian suspensions: bulk rheology and particle migration FRANCOIS BOYER, OLIVIER POULIQUEN, ELISABETH GUAZZELLI, IUSTI, CNRS Aix-Marseille Universite — Concentrated suspensions are known to exhibit non-Newtonian effects and classical rheology often fails to give a consistent description of actual flows. Pa...
متن کاملUnsteady flow and particle migration in dense, non-Brownian suspensions
We present experimental results on dense corn-starch suspensions as examples of non-Brownian, nearly hard particles that undergo continuous and discontinuous shear thickening (DST) at intermediate and high densities, respectively. Our results offer strong support for recent theories involving a stress-dependent effective contact friction among particles. We show, however, that in the DST regime...
متن کاملMultiple transient memories in experiments on sheared non-Brownian suspensions.
A system with multiple transient memories can remember a set of inputs but subsequently forgets almost all of them, even as they are continually applied. If noise is added, the system can store all memories indefinitely. The phenomenon has recently been predicted for cyclically sheared non-Brownian suspensions. Here we present experiments on such suspensions, finding behavior consistent with mu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Rheology
سال: 2016
ISSN: 0148-6055,1520-8516
DOI: 10.1122/1.4954084