Using discrete element method and EDEM software,the influence of magnification of material particle size on material mass flow,material flow speed and total particle number during material conveying of vertical buried scraper ship unloader was studied.By comparison,it is found that the influence of the enlargement of particle size on the mass flow and velocity of materials can be basically ignored,so the calculation amount can be reduced by enlarging particle radius when simulating physical quantities such as mass flow and velocity.In case of a magnification of particle size not more than 3 times,the number of particles will be greatly reduced,and in case of a magnification more than 3 times,the reduction of particle number will slow down.The above research conclusion can serve as a reference for related simulation studies.
关键词
离散单元法/埋刮板式卸船机/EDEM/散料
Key words
discrete element method/buried scraper ship unloader/EDEM/bulk material
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