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Fluent partners at Chimera Technologies have developed a new “plug-in” model for FLUENT that addresses aerosol and hydrosol behavior. Referred to as the Fine Particle Model (FPM), the new model simulates the formation, growth, transport, and deposition of particles in systems influenced by fluid flow, heat transfer, and chemical reaction. Applications include chemical reactors, materials processing, pollutant formation and transport, nano-particle sprays, particle inhalation and transport, and other systems involving sub-micron particles in gas or liquid systems. In contrast to Fluent’s Lagrangian Discrete-Phase Model (DPM), the FPM treats particles in an Eulerian reference frame, and allows particle-particle interactions. It describes the spatial and temporal evolution of the particle size distribution accounting for nucleation and growth of particles, including effects like Brownian motion, adsorption, condensation, and coagulation. The FPM is a set of User-Defined Functions (UDFs) that work with FLUENT 6. It includes a native FLUENT GUI interface and also allows users to modify and extend the model microphysics and chemistry via their own UDFs. Release of the FPM is planned for late-2002. |
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