Národní úložiště šedé literatury Nalezeno 3 záznamů.  Hledání trvalo 0.00 vteřin. 
The Effects of Agitated Beds Homogenization on Stirrer Geometry and Bed Depth via DEM
Kohout, M. ; Trávníčková, Tereza ; Havlica, Jaromír
In this contribution open source DEM particle simulation software LIGGGHTS was studied and tested. Collision forces are there modelled by the softsphere approach with the Hertzian collision model. As an application we studied agitated particle beds (packed from glass spherical particles of two colours – packed vertically and horizontally) mixed by different types of agitators. Dependence of degree of homogenization on particle diameter, particle properties (Young’s modulus), and on geometrical aspects (bed depth, agitator position, etc.) will be also discussed.
Plný tet: SKMBT_C22014090110404 - Stáhnout plný textPDF
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Granular Dynamics of the Mixing Processes for Different RPM Using DEM
Jirounková, K. ; Havlica, Jaromír ; Kohout, M.
This paper emphasizes on the computer simulations of the granular materials via Discrete Element Method (DEM) by using open-source software LIGGGHTS. The examined process was mixing of two granular materials distinct by colour. The different initial conditions have led to finding the best way of homogenization, but it also shows the new perspective of noticing the process as a system of inseparable processes linked to each other.
Plný tet: SKMBT_C22014090110403 - Stáhnout plný textPDF
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Modelling of Mechanical Interactions of Particles in Disperse Solid-Fluid Systems
Barczi, T. ; Kohout, M. ; Hadač, O. ; Havlica, Jaromír
One of the possible ways for mathematical modelling of mechanical interactions of particles in disperse solid-fluid systems is based on ballistic deposition methods and discrete element methods. In this contribution both of these approaches are examined and discussed their advantages and disadvantages in more detail.
Plný tet: SKMBT_C22012102413440 - Stáhnout plný textPDF
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