Zobrazeno 1 - 10
of 982
pro vyhledávání: '"McKinley, Gareth"'
Abstract Knowledge of the evolution of mechanical properties of the curing matrix is of great importance in composite parts or structure fabrication. Conventional rheometry, based on small amplitude oscillatory shear is limited by long interrogation
Externí odkaz:
http://arxiv.org/abs/2405.07721
Extensional flows of complex fluids are pivotal in industrial applications like spraying, atomisation, and microfluidic drop deposition. The Dripping-on-Substrate (DoS) technique is a conceptually simple, but dynamically-complex, probe of the extensi
Externí odkaz:
http://arxiv.org/abs/2404.06947
It is well known that inertia-free shearing flows of a viscoelastic fluid with curved streamlines, such as the torsional flow between a rotating cone and plate, or the flow in a Taylor-Couette geometry, can become unstable to a three-dimensional time
Externí odkaz:
http://arxiv.org/abs/2310.12050
Soft biological tissues exhibit a remarkable resilience to large mechanical loads, a property which is associated with the strain stiffening capability of the biopolymer networks that structurally support the tissues. Yet, recent studies have shown t
Externí odkaz:
http://arxiv.org/abs/2307.11687
Publikováno v:
J. Fluid Mech. 998 (2024) A4
We perform simulations of an impulsively-started, axisymmetric viscoelastic jet exiting a nozzle and entering a stagnant gas phase using the open-source code Basilisk. This code allows for efficient computations through an adaptively-refined volume-o
Externí odkaz:
http://arxiv.org/abs/2306.05137
Autor:
Sun, Sijie, Xue, Nan, Aime, Stefano, Kim, Hyoungsoo, Tang, Jizhou, McKinley, Gareth H., Stone, Howard A., Weitz, David A.
Addition of particles to a viscoelastic suspension dramatically alters the properties of the mixture, particularly when it is sheared or otherwise processed. Shear-induced stretching of the polymers results in elastic stress that causes a substantial
Externí odkaz:
http://arxiv.org/abs/2303.09493
Publikováno v:
Macromolecules, 57, 9, 4220-4235, 2024
Solutions of polymer chains are modelled using non-equilibrium Brownian dynamics simulations, with physically associative beads which form reversible crosslinks to establish a system-spanning physical gel network. Rheological properties such as the z
Externí odkaz:
http://arxiv.org/abs/2302.13623
In Part I of this paper [Haward et al. submitted (2023)], we presented a new three-dimensional microfluidic device (the optimized uniaxial and biaxial extensional rheometer, OUBER) for generating near-homogeneous uniaxial and biaxial elongational flo
Externí odkaz:
http://arxiv.org/abs/2302.12411
The rod-climbing or Weissenberg effect in which the free surface of a complex fluid climbs a thin rotating rod is a popular and convincing experiment demonstrating the existence of elasticity in polymeric fluids. The interface shape depends on the ro
Externí odkaz:
http://arxiv.org/abs/2302.06010
Autor:
Schoppink, Jelle J., Mohan, Keerthana, Quetzeri-Santiago, Miguel A., McKinley, Gareth, Rivas, David Fernandez, Dickerson, Andrew K.
A laser pulse focused near the closed end of a glass capillary partially filled with water creates a vapor bubble and an associated pressure wave. The pressure wave travels through the liquid toward the meniscus where it is reflected, creating a fast
Externí odkaz:
http://arxiv.org/abs/2301.10084