Novel Approach to Characterize Fluidized Bed Dynamics Combining Particle Image Velocimetry and Finite Element Method

2009 ◽  
Vol 48 (10) ◽  
pp. 5010-5023 ◽  
Author(s):  
J. A. Almendros-Ibáñez ◽  
D. Pallarès ◽  
F. Johnsson ◽  
D. Santana
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Particle Image Velocimetry ◽  
Fluidized Bed ◽  
Particle Image ◽  
Novel Approach ◽  
Image Velocimetry ◽  
Element Method

scholarly journals A Novel Particle-Based Approach for Modeling a Wet Vertical Stirred Media Mill

Minerals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 55
Author(s):  
Simon Larsson ◽  
Juan Manuel Rodríguez Prieto ◽  
Hannu Heiskari ◽  
Pär Jonsén
Keyword(s):  
Finite Element Method ◽  
Reynolds Number ◽  
Finite Element ◽  
Grinding Fluid ◽  
Novel Approach ◽  
Grinding Media ◽  
Interparticle Contacts ◽  
Mineral Slurry ◽  
Stirred Media Mill ◽  
Element Method

Modeling of wet stirred media mill processes is challenging since it requires the simultaneous modeling of the complex multiphysics in the interactions between grinding media, the moving internal agitator elements, and the grinding fluid. In the present study, a multiphysics model of an HIG5 pilot vertical stirred media mill with a nominal power of 7.5 kW is developed. The model is based on a particle-based coupled solver approach, where the grinding fluid is modeled with the particle finite element method (PFEM), the grinding media are modeled with the discrete element method (DEM), and the mill structure is modeled with the finite element method (FEM). The interactions between the different constituents are treated by loose (or weak) two-way couplings between the PFEM, DEM, and FEM models. Both water and a mineral slurry are used as grinding fluids, and they are modeled as Newtonian and non-Newtonian fluids, respectively. In the present work, a novel approach for transferring forces between grinding fluid and grinding media based on the Reynolds number is implemented. This force transfer is realized by specifying the drag coefficient as a function of the Reynolds number. The stirred media mill model is used to predict the mill power consumption, dynamics of both grinding fluid and grinding media, interparticle contacts of the grinding media, and the wear development on the mill structure. The numerical results obtained within the present study show good agreement with experimental measurements.

Evolution on deformation behaviour of brazilian test under different contact area using particle image velocimetry and finite element modelling

Measurement ◽  
2020 ◽  
Vol 159 ◽  
pp. 107796
Author(s):  
Rini Abdullah ◽  
Takashi Tsutsumi ◽  
Mohd For Mohd Amin ◽  
Ahmad Safuan A. Rashid ◽  
Firas Ahmed Ibrahim Khalfalla ◽  
...  
Keyword(s):  
Finite Element ◽  
Particle Image Velocimetry ◽  
Contact Area ◽  
Finite Element Modelling ◽  
Particle Image ◽  
Deformation Behaviour ◽  
Brazilian Test ◽  
Element Modelling ◽  
Image Velocimetry

A novel approach to suppress the DC modes in eigenvalue problems using the finite element method

2012 ◽  
Vol 55 (1) ◽  
pp. 210-212
Author(s):  
Marcos S. Gonçalves ◽  
Francisco J. Arnold ◽  
Leonardo L. Bravo-Roger ◽  
Talia S. Santos
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Eigenvalue Problems ◽  
The Finite Element Method ◽  
Novel Approach ◽  
Element Method
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