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High velocity grinding and classification system

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Old   July 27, 2008, 21:29
Default High velocity grinding and classification system
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Sri
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hi, i am a new fluent user. my system is a combination of high speed jet milling, dry air classifier & filtering system. The high impact collision between solid particles & air produces fine products & further the products are classified in the classification & filtering system. i need to explain & quantitatively show the mechanism within the mill & further relate it to the breakage kinetics & product quality in terms of fineness for example. i need to relate the input quality (raw material) with the output (product characteristics). How could i achieve this? i need to use 2d as well as 3d multiphase flow. Please kindly help me. thanks.

sri
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Old   July 29, 2008, 04:23
Default Re: High velocity grinding and classification syst
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tkm
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Start simulating few simple problems before taking up a complex one. Your problem is a complex one which contains simulation of flow, multiphase and mass transfer and as a beginner its difficult to handle such complex flows. rgds,
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Old   July 30, 2008, 08:30
Default Re: High velocity grinding and classification syst
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Smith_K
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Start the solution with flow analysis only. Add complexities as you start getting the results. Like, first inject particles, then move the jet miller, introduce mass transfer etc.
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Old   July 30, 2008, 10:35
Default Re: High velocity grinding and classification syst
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Sri
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TQ Smith & tkm. With respect to the study , 1st i start with 2d model & proceed to 3d model. I am trying to study the fluidization of solid particles with carrier gas, flow analysis & the profile within the mill including pressure distribution , velocity & volume fraction for both phases. How about 'patching' region in 2d & 3d models? How about setting the under relaxation factors? What are the special attention i should give in setting the pressure, momentum, volume fraction, turbulant viscosity ratio etc. for convergence? Thank you.
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