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Research Thesis Topic

Mesoscopic Simulation of Nutrients in Porous Media


Topic ID
83

Thesis Topic/Title
Mesoscopic Simulation of Nutrients in Porous Media

Description

The transport of nutrients in porous media can be considered as a mesoscopic mechanics problem. Micromechanics can thus be applied to investigate the behaviour of such a multiphase system. On meso length scale (microns), effective numerical simulation methods include Dissipative Particle Dynamics (DPD), Smoothed Dissipative Particle Dynamics and Lattice Boltzmann methods. in DPD, the method to be considered here, DPD particles are regarded as groups of molecules and thus the DPD simulations can be conducted on time and length scales that are far beyond those of molecular simulations. We propose using freely-movable DPD particles to model the fluid (water) and spring-connected DPD particles to represent the nutrients and soil grains. Through the interactions of three types of particles, the movement of nutrients in porous media can be tracked in a direct manner. Furthermore, force fields (e.g. magnetic) can be easily accommodated in the DPD system by applying appropriate potentials. This direct (natural) simulation approach is expected to lead to a significant improvement in accuracy over continuous-medium-based approaches.


Principal Supervisor

Associate Supervisors

Research Affiliations
  • Computational Engineering and Science Research Centre
  • Institute for Agriculture and the Environment
  • School of Mechanical and Electrical Engineering

Field of Research
  • Interdisciplinary Engineering
  • Numerical and Computational Mathematics
  • Soil Sciences

Available Academic Programs

Application Open Date
29/02/2016

Application Close Date
31/12/2019

USQ Scholarship Applications

Pre-approved for Ethics
No

Admission Requirements

Please review the admission requirements for the academic program associated with this Thesis Topic




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