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Torrence CE, Grasley Z, Lawrimore WB, Garboczi EJ. Using surface asperities for efficient random particle overlap detection in the generation of randomly oriented and located particle arrangements. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2021.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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George GR, Bockelmann M, Schmalhorst L, Beton D, Gerstle A, Torkuhl L, Lindermeir A, Wehinger GD. Workflow for computational fluid dynamics modeling of fixed‐bed reactors packed with metal foam pellets: Hydrodynamics. AIChE J 2021. [DOI: 10.1002/aic.17284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ginu R. George
- Institute of Chemical and Electrochemical Process Engineering Clausthal University of Technology Clausthal‐Zellerfeld Germany
| | - Marina Bockelmann
- CUTEC Research Centre Clausthal University of Technology Clausthal‐Zellerfeld Germany
| | | | | | | | | | - Andreas Lindermeir
- CUTEC Research Centre Clausthal University of Technology Clausthal‐Zellerfeld Germany
| | - Gregor D. Wehinger
- Institute of Chemical and Electrochemical Process Engineering Clausthal University of Technology Clausthal‐Zellerfeld Germany
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Abstract
Covering spheroids (ellipsoids of revolution) by different spheres is studied. The research is motivated by packing non-spherical particles arising in natural sciences, e.g., in powder technologies. The concept of an ε -cover is introduced as an outer multi-spherical approximation of the spheroid with the proximity ε . A fast heuristic algorithm is proposed to construct an optimized ε -cover giving a reasonable balance between the value of the proximity parameter ε and the number of spheres used. Computational results are provided to demonstrate the efficiency of the approach.
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Neumann M, Abdallah B, Holzer L, Willot F, Schmidt V. Stochastic 3D Modeling of Three-Phase Microstructures for Predicting Transport Properties: A Case Study. Transp Porous Media 2019. [DOI: 10.1007/s11242-019-01240-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Lin SS, Chung YC, Lin CK, Chen YC. DEM simulation and experimental validation for mechanical response of ellipsoidal particles under confined compression. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.02.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Qian Q, Wang L, An X, Wu Y, Wang J, Zhao H, Yang X. DEM simulation on the vibrated packing densification of mono-sized equilateral cylindrical particles. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.10.050] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Numerical study of the motion behaviour of three-dimensional cubic particle in a thin drum. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2017.11.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Partopour B, Dixon AG. An integrated workflow for resolved-particle packed bed models with complex particle shapes. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.09.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Goñi C, Celi D, Concha F. Determination of the volumetric solids fraction of saturated polydisperse ore tailing sediments. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2016.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Chen H, Zhu Z, Liu L, Sun W, Miao C. Aggregate shape effect on the overestimation of ITZ thickness: Quantitative analysis of Platonic particles. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2015.11.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Xu W, Chen H, Duan Q, Chen W. Strategy for interfacial overlapping degree in multiphase materials with complex convex particles. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Lu G, Third J, Müller C. Discrete element models for non-spherical particle systems: From theoretical developments to applications. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2014.11.050] [Citation(s) in RCA: 335] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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