Effects of Polarization on Particle-Laden Flows

被引：21

作者：

Kolehmainen, Jari ^{[1
]}

Ozel, Ali ^{[1
]}

Gu, Yile ^{[1
]}

Shinbrot, Troy ^{[1
]}

Sundaresan, Sankaran ^{[1
]}

机构：

[1] Princeton Univ, Dept Chem & Biol Engn, Olden St, Princeton, NJ 08544 USA

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 12期

基金：

美国国家科学基金会;

关键词：

SOLID FLUIDIZED-BEDS; CFD-DEM; SIMULATION; CONTACT; FORCE; MODEL; ELECTROSTATICS; ENTRAINMENT; SAND; WALL;

D O I：

10.1103/PhysRevLett.121.124503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Simulations of particle-laden flow with dielectric particles are carried out with varying levels of electrical charging and particle polarization. Simulation results reveal three distinct flow regions. For low particle charge and polarizability, flow is nearly symmetric and nonmeandering. For strong charging and polarization, particles form a continuous and tightly clustered sheet close to one of the walls. Between these extremes, particles form localized particle-rich regions, around which the gas executes a meandering flow. These results indicate that polarization can lead to qualitative changes in the characteristics of particle-laden flows subject to tribocharging.

引用

页数：5

共 50 条

[1] Experiments on turbulent particle-laden flows
Longmire, EK
Khalitov, DA
Pothos, S
[J]. ENERGY AND ENVIRONMENT: TECHNOLOGICAL CHALLENGES FOR THE FUTURE, 2001, : 221 - 238
[2] ON PREDICTING PARTICLE-LADEN TURBULENT FLOWS
ELGHOBASHI, S
[J]. APPLIED SCIENTIFIC RESEARCH, 1994, 52 (04): : 309 - 329
[3] A stochastic model for gravity effects in particle-laden turbulent flows
Gao, Z
Mashayek, F
[J]. JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 2004, 126 (04): : 620 - 625
[4] Effects of particle polydispersity on radiative heat transfer in particle-laden turbulent flows
Rahmani, M.
Geraci, G.
Iaccarino, G.
Mani, A.
[J]. INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 2018, 104 : 42 - 59
[5] Recent advances in the simulation of particle-laden flows
Harting, J.
Frijters, S.
Ramaioli, M.
Robinson, M.
Wolf, D. E.
Luding, S.
[J]. EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS, 2014, 223 (11): : 2253 - 2267
[6] Turbulence generation in homogeneous particle-laden flows
[J]. Chen, J.-H., 1600, AIAA, Reston, VA, United States (38):
[7] Optical depth in particle-laden turbulent flows
Frankel, A.
Iaccarino, G.
Mani, A.
[J]. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 2017, 201 : 10 - 16
[8] Particle-laden exchange flows in inclined pipes
Mirzaeian, Nima
Alba, Kamran
[J]. PHYSICAL REVIEW FLUIDS, 2018, 3 (11):
[9] Bubbly and Buoyant Particle-Laden Turbulent Flows
Mathai, Varghese
Lohse, Detlef
Sun, Chao
[J]. ANNUAL REVIEW OF CONDENSED MATTER PHYSICS, VOL 11, 2020, 2020, 11 : 529 - 559
[10] On the Influence of Wall Roughness in Particle-laden flows
Milici, Barbara
De Marchis, Mauro
[J]. PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2014 (ICNAAM-2014), 2015, 1648

← 1 2 3 4 5 →