Supercooled liquids under shear: Theory and simulation

@article{citeulike:1244065, abstract = {We analyze the behavior of supercooled fluids under shear both theoretically and numerically. Theoretically, we generalize the mode-coupling theory of supercooled fluids to systems under stationary shear flow. Our starting point is the set of generalized fluctuating hydrodynamic equations with a convection term. A nonlinear integrodifferential equation for the intermediate scattering function is constructed. This theory is applied to a two-dimensional colloidal suspension. The shear rate dependence of the intermediate scattering function and the shear viscosity is analyzed. We have also performed extensive numerical simulations of a two-dimensional binary liquid with soft-core interactions near, but above, the glass transition temperature. Both theoretical and numerical results show the following. (i) A drastic reduction of the structural relaxation time and the shear viscosity due to shear. Both the structural relaxation time and the viscosity decrease as \&\#150; with an exponent 1, where is the shear rate. (ii) Almost isotropic dynamics regardless of the strength of the anisotropic shear flow.}, author = {Miyazaki, Kunimasa and Reichman, David R. and Yamamoto, Ryoichi }, citeulike-article-id = {1244065}, doi = {10.1103/PhysRevE.70.011501}, journal = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)}, keywords = {mct, shear, simulation, yamamoto}, number = {1}, posted-at = {2008-04-25 19:28:49}, priority = {2}, publisher = {APS}, title = {Supercooled liquids under shear: Theory and simulation}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PLEEE8000070000001011501000001\&idtype=cvips\&gifs=yes}, volume = {70}, year = {2004} }

TY - JOUR ID - citeulike:1244065 L3 - citeulike-article-id:1244065 TI - Supercooled liquids under shear: Theory and simulation JF - Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) VL - 70 IS - 1 PB - APS N2 - We analyze the behavior of supercooled fluids under shear both theoretically and numerically. Theoretically, we generalize the mode-coupling theory of supercooled fluids to systems under stationary shear flow. Our starting point is the set of generalized fluctuating hydrodynamic equations with a convection term. A nonlinear integrodifferential equation for the intermediate scattering function is constructed. This theory is applied to a two-dimensional colloidal suspension. The shear rate dependence of the intermediate scattering function and the shear viscosity is analyzed. We have also performed extensive numerical simulations of a two-dimensional binary liquid with soft-core interactions near, but above, the glass transition temperature. Both theoretical and numerical results show the following. (i) A drastic reduction of the structural relaxation time and the shear viscosity due to shear. Both the structural relaxation time and the viscosity decrease as – with an exponent 1, where is the shear rate. (ii) Almost isotropic dynamics regardless of the strength of the anisotropic shear flow. KW - mct KW - shear KW - simulation KW - yamamoto AU - Miyazaki, Kunimasa AU - Reichman, David AU - Yamamoto, Ryoichi PY - 2004/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000070000001011501000001&idtype=cvips&gifs=yes ER -