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Many applications in the process industries involve multiphase flows. The sustained and substantial investment in advanced technology development from ANSYS, combined with an ongoing focus in user-driven physical model development, play a key role in helping engineering simulation tools from ANSYS gain broad traction with researchers, process engineers and equipment designers. ANSYS provides an unparalleled depth of capabilities for modeling multiphase systems, including free surface, boiling, cavitations, wet steam, flashing, slurries and particulate systems. The applicability of ANSYS engineering simulation tools to the process industry is achieved through the development of capabilities tailored to meet multiphase modeling needs. For example ANSYS tools allow engineers to model particle size distribution through population balance, this combines detailed fluid mechanics analysis with a better description of the size distribution of particles, bubbles, or droplets in a multiphase mixture. Using this formulation accounts for phenomena such as nucleation, growth, dispersion, dissolution, aggregation and breakage. By employing ANSYS tools it is now possible to describe and track changes in the particle population. Similarly, for particulate laden flows, ANSYS provides simulation capabilities for a wide range of applications from diluted and high solid loading, to frictional flows. Because the applications of gas, solid and particulate flows are very diverse, ANSYS software tools provide a range of capabilities including discrete particle models (DPM), a macroscopic particle model (MPM), a smooth particle hydrodynamic (SPH) and full Euler-granular models. These models allow for the presence of large particles where particle collisions, rotation, adhesion, and other forces are accounted for using a hard sphere approach. For example, ANSYS fluid mechanics software has a well established track record of being used to help analyze and design the flow and performance of systems including:
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Droplet break up, using ANSYS Volume of Fluid (VOF)
Fluidized bed with internals using ANSYS Euler-granular
Particles entrained by bubbles using Multi-Fluid model |
