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Title: Numerical investigations of the coupled DEM-LBM technique with application to leakage-soil interaction due to a leaking pipe
Author: Li, Jun
ISNI:       0000 0004 2730 5293
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2013
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This thesis is motivated by developing a numerical tool, FPS-BHAM, in exploring the large-scale fluid-particle system with local interaction behaviours being captured. A blocked partitioning domain decomposition strategy with the philosophies of parallel computing and combination with a large-scale modelling technique is proposed in this thesis. The illustration of detailed implementation of DEM-LBM, with its verification in FPS-BHAM and its validation using a pipe leakage problem, are subsequently conducted. A good parallel behaviour is achieved by applying the blocked partitioning domain decomposition strategy, which is proposed in this thesis. The DEM-DFF technique is also successfully implemented in FPS-BHAM as well. Furthermore, a combination strategy between DEM-LBM and DEM-DFF is proposed in this thesis. A good computational benefit is found to be achieved by adopting the proposed combination strategy. Finally, different behaviours between LBM and DFF during the dynamic propagation to the steady state are investigated by parametric studies.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: TA Engineering (General). Civil engineering (General)