Hybrid volume-of-ﬂuid and discrete particle solver for oil-mist ﬁlter simulations
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This paper presents a combined volume-of-fluid and discrete Lagrangian particle tracking method which can be used to simulate oil-mist or coalescing filters, and gauge their effectiveness. The solver is built on the open-source OpenFOAM CFD libraries, which are extended to include a physically accurate model for motion of small particles, coupled with a volume-offluid treatment as particles coalesce, or are collected on the fibres. A key part of the method is accounting for particles as they change between a discrete Lagrangian treatment to a volume-offluid treatment. Results from an investigation into an idealised filter geometry are used to demonstrate that the method is feasible, robust and that realistic behaviour of an oil-mist filter can be captured. Successful implementation of the method should lead to a better understanding of the behaviour of oil mist filters, and will allow design options to be explored through simulation, in addition to experimentation.
17th Australasian Fluid Mechanics Conference Proceedings
Mechanical Engineering not elsewhere classified