TY - JOUR
T1 - CFD-DEM Modeling of Shaft Furnaces Using the Volume Fraction Smoother Approach
AU - Spijker, Christoph
AU - Pollhammer, Werner
AU - Raupenstrauch, Harald
N1 - Publisher Copyright: © 2023 The Authors. Chemical Engineering & Technology published by Wiley-VCH GmbH.
PY - 2023/7
Y1 - 2023/7
N2 - Shaft furnaces are widely used in high-temperature processes for granular materials due to their high energy efficiency. The modeling of these furnaces is challenging because of large domains and long process times. Small geometric details like the natural gas burner nozzles demand a fine grid on the computational fluid dynamics (CFD) side, resulting in a grid size smaller than the particle size. Resolving a discrete element particle over several cells is computationally expensive. Interpolation methods on non-structured grids are complex. In order to provide a fast and simple solution, the volume fraction smoother was developed, and to shorten the calculation time, the time scale splitting method, which separates the time steps for CFD and the discrete-element method (DEM), was introduced.
AB - Shaft furnaces are widely used in high-temperature processes for granular materials due to their high energy efficiency. The modeling of these furnaces is challenging because of large domains and long process times. Small geometric details like the natural gas burner nozzles demand a fine grid on the computational fluid dynamics (CFD) side, resulting in a grid size smaller than the particle size. Resolving a discrete element particle over several cells is computationally expensive. Interpolation methods on non-structured grids are complex. In order to provide a fast and simple solution, the volume fraction smoother was developed, and to shorten the calculation time, the time scale splitting method, which separates the time steps for CFD and the discrete-element method (DEM), was introduced.
KW - Computational fluid dynamics
KW - Discrete-element method
KW - Shaft furnace
KW - Time scale splitting method
KW - Volume fraction smoother
UR - http://www.scopus.com/inward/record.url?scp=85159895882&partnerID=8YFLogxK
U2 - 10.1002/ceat.202200617
DO - 10.1002/ceat.202200617
M3 - Article
AN - SCOPUS:85159895882
VL - 46.2023
SP - 1333
EP - 1339
JO - Chemical Engineering and Technology
JF - Chemical Engineering and Technology
SN - 0930-7516
IS - 7
ER -