Project Director

Sánchez Díaz, Luis Enrique

Department Examiner

Lee, John

Department

Dept. of Chemistry

Publisher

University of Tennessee at Chattanooga

Place of Publication

Chattanooga (Tenn.)

Abstract

In this work, we study the changes in structure during the shear thinning regime using Brownian Dynamics with a simple steady-state shear flow of binary charged colloidal suspension. Previous research has analyzed the viscosity, radial distribution, elasticity and plasticity of materials with rheo-SANS experimentation; however, less research has been conducted to replicate the experiment through computer simulations. With Brownian Dynamic Simulation, this study was able to reproduce the results obtained in a recent rheo-SANS experiment and it also explored the viscosity, radial distribution, elastic and plastic behavior of a system under different parameters. The comparison of simulated data with experimental data revealed the computer simulation to successfully generate results indicative of shear thinning behavior in both the viscosity versus shear data as well as the radial distribution data. The simulated system was also able to successfully generate systems which exhibited plastic behavior and elastic behavior.

Degree

B. S.; An honors thesis submitted to the faculty of the University of Tennessee at Chattanooga in partial fulfillment of the requirements of the degree of Bachelor of Science.

Date

5-2021

Subject

Mathematical models; Non-Newtonian fluids; Shear (Mechanics)

Keyword

BD Simulations; Non-newtonian; Plasticity & Elasticity; Rheology; Shear Thinning; Viscosity

Discipline

Physical Chemistry

Document Type

Theses

Extent

48 leaves

DCMI Type

Text

Language

English

Rights

http://rightsstatements.org/vocab/InC/1.0/

License

http://creativecommons.org/licenses/by/4.0/

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