Improved experimental tracking techniques for validating discrete element method simulations of tumbling mills

被引:18
作者
Govender, I [1 ]
McBride, AT [1 ]
Powell, MS [1 ]
机构
[1] Univ Cape Town, Dept Chem Engn, Mineral Proc Res Unit, ZA-7701 PB Rondebosch, South Africa
关键词
template matching; angiography; comminution; discrete element method;
D O I
10.1177/0014485104048333
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report on further developments in the three-dimensional tracking of a particle deep within the tumbling ball charge of an experimental mill. The experimental X-ray program employing the use of bi-planar X-ray angiography now includes the tracking of a typical 6 mm bulk charge particle in three dimensions with a spatial resolution that is accurate to within 0.15 mm. The improved experimental tracking techniques presented were developed for the purpose of generating accurate three-dimensional particle trajectory data against which to validate a numerical method for the simulation of discrete media, namely the discrete element method (DEM). These improvements are complimented with techniques for comparing charge profiles between numerical DEM simulations and three-dimensional experimental trajectory data.
引用
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页码:593 / 607
页数:15
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