Course detail

Reology

FCH-DCO_REGAcad. year: 2020/2021

Subject of rheology, linear vector functions, gradients, tensors, surface vector, divergence balance, affine transformation and tensor algebra. Simple shear and shear flow, simple shear kinematics, shear dynamics of elastic material, elastic materials and viscous liquids, kinematics of stationary simple shear flow, dynamics of simple shear flow of viscous liquids, shear response of viscoelastic materials. Viscosity and its measurement, viscosity functions of nonnewtonian liquids, thixotropy, dilatancy and antithixotropy. Linear viscoelasticity, basic tests of linear viscoelasticity: relaxationa and creep, mathematical foundations of linearity: Boltzmann's superposition principle, basic material functions of linear viscoelasticity for shear movements, relaxation spectra, influence of inertia on complex viscosity measurement, viscometric normal tensions.

Learning outcomes of the course unit

Viscometry of non-Newtonian liquids, material functions of linear viscoelasticity, applications in chemical engineering and polymer science

Prerequisites

College physics and mathematics. Principles of (classical) physical chemistry. Calculus. Fundamentals of vectorial analysis in Eucleidean 3D space.

Co-requisites

Not applicable.

Recommended optional programme components

Not applicable.

Recommended or required reading

BARNES, H. A., HUTTON, J. F., WALTERS, K. An Introduction to Rheology. Amsterdam: Elsevier, 1989. (CS)
MORISSON, F. A. Understanding Rheology. New York: Oxford University Press, 2001. (CS)
WEIN, O., Úvod do reologie. Brno: FCH VUT v Brně, 1996. (CS)

Planned learning activities and teaching methods

The course uses teaching methods in form of individual consultation. The e-learning system (LMS Moodle) is available to teachers and students.

Assesment methods and criteria linked to learning outcomes

(only in Czech)

Language of instruction

Czech

Work placements

Not applicable.

Course curriculum

Mechanical behaviour and properties of materials: Newtonian liquids and Hookean materials.
Non-Newtonian liquids: Basic types, constitutional equations, thixotropy, rheopexy.
linear viskoelasticity: Maxwell and Kelvin models, material functions.
Viskozimetry and rheometry: Theory of measurement, devices.
Rheology and rheometry of disperzions (polymer solutions, suspensions, emulsions).

Aims

Acquiring basic notions and methods of non-linear continuum mechanics, used for quantitative understanding of the simple rheometrical flow situations, common in characterizing the flow properties of non-newtonian liquids.

Specification of controlled education, way of implementation and compensation for absences

none

Classification of course in study plans

  • Programme DKAP_FCH_4 Doctoral

    branch DKAO_FCH , 1. year of study, winter semester, 0 credits, compulsory-optional

  • Programme DPCP_FCH_4 Doctoral

    branch DPCPO_FCH_4 , 1. year of study, winter semester, 0 credits, compulsory-optional

  • Programme DPAP_FCH_4 Doctoral

    branch DPAO_FCH , 1. year of study, winter semester, 0 credits, compulsory-optional

  • Programme DKCP_FCH_4 Doctoral

    branch DKCPO_FCH_4 , 1. year of study, winter semester, 0 credits, compulsory-optional