TY - JOUR
T1 - Resolved-particle simulation by the Physalis method
T2 - Enhancements and new capabilities
AU - Sierakowski, Adam J.
AU - Prosperetti, Andrea
N1 - Funding Information:
The present work has been supported by the United States National Science Foundation under grants CBET1258398 and CBET1335965 . A.J.S. also acknowledges support from the Johns Hopkins University Modeling Complex Systems IGERT Fellowship Program, under National Science Foundation grant DGE0801471 .
Publisher Copyright:
© 2016 Elsevier Inc.
PY - 2016/3/15
Y1 - 2016/3/15
N2 - We present enhancements and new capabilities of the Physalis method for simulating disperse multiphase flows using particle-resolved simulation. The current work enhances the previous method by incorporating a new type of pressure-Poisson solver that couples with a new Physalis particle pressure boundary condition scheme and a new particle interior treatment to significantly improve overall numerical efficiency. Further, we implement a more efficient method of calculating the Physalis scalar products and incorporate short-range particle interaction models. We provide validation and benchmarking for the Physalis method against experiments of a sedimenting particle and of normal wall collisions. We conclude with an illustrative simulation of 2048 particles sedimenting in a duct. In the appendix, we present a complete and self-consistent description of the analytical development and numerical methods.
AB - We present enhancements and new capabilities of the Physalis method for simulating disperse multiphase flows using particle-resolved simulation. The current work enhances the previous method by incorporating a new type of pressure-Poisson solver that couples with a new Physalis particle pressure boundary condition scheme and a new particle interior treatment to significantly improve overall numerical efficiency. Further, we implement a more efficient method of calculating the Physalis scalar products and incorporate short-range particle interaction models. We provide validation and benchmarking for the Physalis method against experiments of a sedimenting particle and of normal wall collisions. We conclude with an illustrative simulation of 2048 particles sedimenting in a duct. In the appendix, we present a complete and self-consistent description of the analytical development and numerical methods.
KW - Computational fluid dynamics
KW - Disperse multiphase flow
KW - Physalis method
KW - Resolved particle numerical simulation
KW - Spherical particle
KW - 2023 OA procedure
UR - http://www.scopus.com/inward/record.url?scp=84954286098&partnerID=8YFLogxK
U2 - 10.1016/j.jcp.2015.12.057
DO - 10.1016/j.jcp.2015.12.057
M3 - Article
SN - 0021-9991
VL - 309
SP - 164
EP - 184
JO - Journal of computational physics
JF - Journal of computational physics
ER -