Exhaust Gas Recirculation (EGR) is one of several technologies that are
being investigated to deliver future legislative emissions targets for diesel
engines. Its application requires a detailed understanding of the thermofluidic processes within the engine's charge air system. A fully validated
Computational Fluid Dynamics (CFD) process is one way of providing this
understanding. This thesis describes how a process was developed using
validation data from a four-branch diesel engine inlet manifold with a
secondary EGR inlet.
The validation and verification technique adopted, divided the complex flow
problem into simpler elemental flow problems. Knowledge on these simple
problems was, in some cases, found to be well documented in published
literature. In other cases, additional detailed experimental validation and
verification studies were carried out to supplement published information.
Knowledge from these simple problems was utilised to develop the main
CFD process and to enhance understanding of the calculation uncertainties......
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.