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Inertial migration of a neutrally buoyant circular particle in a planar Poiseuille flow with thermal fluids
Liu, Wenwei1,2,3; Wu, Chuan-Yu3
2021-06-01
Source PublicationPHYSICS OF FLUIDS
ISSN1070-6631
Volume33Issue:6Pages:14
AbstractThis work presents an extensive numerical study on the inertial migration of a neutrally buoyant circular particle in a planar Poiseuille flow with thermal convection using the lattice Boltzmann method. The numerical analysis confirms that, once the channel Grashof number Gr reaches a critical value Gr(c), the particle lateral equilibrium position transits from above the centerline to below. Moreover, the critical Grashof number Gr(c) depends on the channel Reynolds number and the particle-to-channel size ratio. A force scaling analysis is performed, from which a unified Grashof number Gr* is introduced to consider the synergetic effects of thermal convection and particle size. In addition, it is also found that the occurrence of equilibrium position transition is not sensitive to the initial conditions, but the exact transition point depends on the initial conditions, such as the initial position of the particle and the fluid flow state.
DOI10.1063/5.0051024
Language英语
WOS KeywordDIRECT NUMERICAL-SIMULATION ; MACROSCOPIC RIGID SPHERES ; LATTICE BOLTZMANN METHOD ; PARTICULATE FLOWS ; SPHERICAL-PARTICLES ; NEWTONIAN FLUID ; HEAT-TRANSFER ; CHANNEL ; BEHAVIOR ; LIFT
Funding ProjectEngineering and Physical Sciences Research Council, UK (EPSRC)[EP/N033876/1] ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry[E0010712]
WOS Research AreaMechanics ; Physics
WOS SubjectMechanics ; Physics, Fluids & Plasmas
Funding OrganizationEngineering and Physical Sciences Research Council, UK (EPSRC) ; Key Research Program of Nanjing IPE Institute of Green Manufacturing Industry
WOS IDWOS:000677513600001
PublisherAMER INST PHYSICS
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49478
Collection中国科学院过程工程研究所
Corresponding AuthorWu, Chuan-Yu
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Nanjing IPE Inst Green Mfg Ind, Nanjing 211135, Peoples R China
3.Univ Surrey, Dept Chem & Proc Engn, Guildford GU2 7XH, Surrey, England
Recommended Citation
GB/T 7714
Liu, Wenwei,Wu, Chuan-Yu. Inertial migration of a neutrally buoyant circular particle in a planar Poiseuille flow with thermal fluids[J]. PHYSICS OF FLUIDS,2021,33(6):14.
APA Liu, Wenwei,&Wu, Chuan-Yu.(2021).Inertial migration of a neutrally buoyant circular particle in a planar Poiseuille flow with thermal fluids.PHYSICS OF FLUIDS,33(6),14.
MLA Liu, Wenwei,et al."Inertial migration of a neutrally buoyant circular particle in a planar Poiseuille flow with thermal fluids".PHYSICS OF FLUIDS 33.6(2021):14.
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