Thesis-2007-KhanSiddiqui.pdf (4.92 MB)
A novel finite element technique for the solution of engineering flow problems
thesis
posted on 2018-11-14, 12:18 authored by Aroba Khan-SiddiquiA new technique known as the bubble function method is developed for the modelling of
fluid flow problems. The main motivation for this work has been the desire to resolve
difficulties that traditional methods show in dealing with multi-scale behaviour in flow
regimes. All of the traditionally used methods require excessive mesh refinement in the
simulations of systems that combine different scale of behaviour in one domain. The present
bubble function method avoids such crude remedies and instead of using an elegant
mathematical technique for the conjunctive approximation of fine and coarse scale
phenomena. Using numerical experiments it is shown that the implementation of the bubble
function method generates accurate and stable solutions for a wide range of problems. This
range includes convection and reaction dominated transport phenomena, and various types of
porous flow systems, it can also be extended to transient flow simulations. To demonstrate
the applicability of the present technique it has been used to solve a realistic problem,
namely solute dispersion in an estuary. The results of this simulation show good agreement
with field survey data.
Funding
Engineering and Physical Sciences Research Council.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Chemical Engineering
Publisher
© Aroba Khan-SiddiquiPublisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2007Notes
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of the degree of Doctor of Philosophy at Loughborough University.Language
- en