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Particles in diesel emissions most significantly , many currently used to collect particles , each with its own advantages and disadvantages . References of industrial dust cyclone principle , the use of settlement theory , structure modifications after the cyclone for the collection of diesel exhaust particles . Taking into account the volume of the device , the structure of the separator was improved . And fluent software to simulate the internal flow field on the design of the cyclone , the collection efficiency and particle trajectories . Works by in-depth analysis of the cyclone , the use of some reasonable assumptions , and concluding on the basis of previous studies , respectively establish cyclone within the single-phase and gas-solid flow mathematical model . Difference discrete mathematical model created , the establishment of a the cyclone separator multiphase flow boundary conditions , SIMPLE pressure correction algorithm , numerical simulation of multiphase flow within the cyclone .
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