Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Sun, Jin"'
Colloidal gels formed from small attractive particles are commonly used in formulations to keep larger components in suspension. However, despite extensive work characterizing unfilled gels, little is known about how larger inclusions alter the phase
Externí odkaz:
http://arxiv.org/abs/2207.03864
Recent advances in shear-thickening suspension rheology suggest a relation between (wet) suspension flow below jamming and (dry) granular physics. To probe this connection, we simulated the contact force networks in suspensions of non-Brownian sphere
Externí odkaz:
http://arxiv.org/abs/1904.03144
Autor:
Guy, Ben M., Ness, Christopher, Hermes, Michiel, Sawiak, Laura J., Sun, Jin, Poon, Wilson C. K.
There is a growing consensus that shear thickening of concentrated dispersions is driven by the formation of stress-induced frictional contacts. The Wyart-Cates (WC) model of this phenomenon, in which the microphysics of the contacts enters solely vi
Externí odkaz:
http://arxiv.org/abs/1901.02066
Autor:
Ness, Christopher, Ooi, Jin Y., Sun, Jin, Marigo, Michele, McGuire, Paul, Xu, Han, Stitt, Hugh
Extrusion is a widely used process for forming pastes into designed shapes, and is central to the manufacture of many industrial products. The extrusion through a square-entry die of a model paste of non-Brownian spheres suspended in a Newtonian flui
Externí odkaz:
http://arxiv.org/abs/1608.06188
Shear thickening, an increase of viscosity with shear rate, is a ubiquitous phenomena in suspended materials that has implications for broad technological applications. Controlling this thickening behavior remains a major challenge and has led to emp
Externí odkaz:
http://arxiv.org/abs/1605.09449
Autor:
Ness, Christopher, Sun, Jin
We propose a unifying rheological framework for dense suspensions of non-Brownian spheres, predicting the onsets of particle friction and particle inertia as distinct shear thickening mechanisms, while capturing quasistatic and soft particle rheology
Externí odkaz:
http://arxiv.org/abs/1509.04444
Autor:
Lin, Neil Y. C., Guy, Ben M., Hermes, Michiel, Ness, Chris, Sun, Jin, Poon, Wilson C. K., Cohen, Itai
Publikováno v:
Phys. Rev. Lett. 115, 228304 (2015)
Shear thickening is a widespread phenomenon in suspension flow that, despite sustained study, is still the subject of much debate. The longstanding view that shear thickening is due to hydrodynamic clusters has been challenged by recent theory and si
Externí odkaz:
http://arxiv.org/abs/1509.02750
Autor:
Ness, Christopher, Sun, Jin
Publikováno v:
Phys. Rev. E 93, 012604 (2016)
We use shear reversal simulations to explore the rheology of dense, non-Brownian suspensions, resolving lubrication forces between neighbouring particles and modelling particle surface contacts. The transient stress response to an abrupt reversal of
Externí odkaz:
http://arxiv.org/abs/1509.01530
Autor:
Ness, Christopher, Sun, Jin
Shear flow of dense, non-Brownian suspensions is simulated using the discrete element method, taking particle contact and hydrodynamic lubrication into account. The resulting flow regimes are mapped in the parametric space of solid volume fraction, s
Externí odkaz:
http://arxiv.org/abs/1409.1041
Autor:
Sun, Jin, Sundaresan, Sankaran
We present theoretical predictions of granular flow in a conical hopper based on a continuum theory employing a recently-developed constitutive model with microstructure evolution by Sun and Sundaresan [1]. The model is developed for strain rate-inde
Externí odkaz:
http://arxiv.org/abs/1207.1751