Clint Joung
Tel: 93512252 (Room 307), cjoung@aeromech.usyd.edu.au
PhD Research Title:
Fibre Suspension- Numerical Simulations for Newtonian and Non-Newtonian Solvents, Containing Rigid or Non-rigid Fibres
Objective:
We are able to successfully predict the bulk rheological properties of multiple rigid fibre suspensions using theoretical research, Monte-Carlo based methods, and also through the direct simulation and tracking of multiple individual suspension particles in numerical simulation. The SyDCom computing facility consisting of 32 Dec-alpha workstations, and parallelized computing techniques (PVM) allows large computationally intensive simulations of this type to be conducted within this department. The rigid fibre suspension simulations have been extended to study the effects of particulate shape on rheological bulk properties. Existing theoretical predictions for qualitatively different behaviour have been verified using recently developed flexible fibre models and numerical simulations.
Flexible fibre direct simulation |
Single curved fibre motion |
The eigenvectors of the fibre suspension orientation tensor <PP> form a orthogonal vector triplet - and may be represented with the three main axes of an ellipsoid. This figure shows the orientation evolution of the suspension in a shear flow.
