Symposium on Micromechanical Models for Complex Fluids
نویسندگان
چکیده
منابع مشابه
Lattice Boltzmann Models for Complex Fluids
We present various Lattice Boltzmann Models which reproduce the effects of rough walls, shear thinning and granular flow. We examine the boundary layers generated by the roughness of the walls. Shear thinning produces plug flow with a sharp density contrast at the boundaries. Density waves are spontaneously generated when the viscosity has a nonlinear dependence on density which characterizes g...
متن کاملa study on thermodynamic models for simulation of 1,3 butadiene purification columns
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
Microscopic models of complex fluids in nonequilibrium
The method of nonequilibrium molecular dynamics (NEMD) is used to simulate microscopic models of macromolecular fluids in flow situations. Procedures to extract rheological properties, such as the (non-newtonian) viscosity, normal pressure differences as well as information on flow induced structural changes, are discussed. This contribution focusses on polymer melts and polymer solutions, liqu...
متن کاملPhase-separation models for swimming enhancement in complex fluids.
Swimming cells often have to self-propel through fluids displaying non-Newtonian rheology. While past theoretical work seems to indicate that stresses arising from complex fluids should systematically hinder low-Reynolds number locomotion, experimental observations suggest that locomotion enhancement is possible. In this paper we propose a physical mechanism for locomotion enhancement of micros...
متن کاملMoment closure for FENE models of complex fluids
In this talk, we present some joint work with current and former colleagues at Penn State (C. Liu, P. Yu and Y. Hyon) on moment closure approximations of multiscale complex fluid models. Moment closure not only provides a computationally feasible approach to simulate many multiscale phenomena but also offers insight to the understanding of the underlying physical processes. We will discuss some...
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ژورنال
عنوان ژورنال: Applied Mechanics Reviews
سال: 1994
ISSN: 0003-6900,2379-0407
DOI: 10.1115/1.3124412