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Force evaluations in lattice Boltzmann simulations with moving boundaries in two dimensions
Li, HB(李华兵); Lu, XY; Fang, HP(方海平); Qian, YH; Fang, HP (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
2004
Source PublicationPHYSICAL REVIEW E
ISSN1539-3755
Volume70Issue:2
AbstractTwo techniques, based on the exchange of momentum and the integration of stress tensor, for the evaluation of the hydrodynamic forces in the lattice Boltzmann simulations are investigated on the curved and moving boundaries in two dimensions. The following results are obtained by numerical simulations: (i) the hydrodynamic forces on an inclined boundary and arc in liquid without flow computed by the stress-integration method agree with analytical predictions to a very high accuracy, while those by the momentum-exchange method have considerable errors for small segments; (ii) the simulation results of the sedimentation of a circular cylinder in a two-dimensional channel with the stress-integration method for hydrodynamic forces are in excellent agreement with those by a second-order moving finite-element method; (iii) the particle migrated from the centerline is found to occur in the simulations of a circular cylinder in a Poiseuille flow by the stress-integration method, consistent with the Segre-Silberberg effect. In conclusion, the stress-integration method can be a good candidate to evaluate the hydrodynamic forces on the elastic boundaries and moving particles in fluid.
Subject AreaPhysics
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000223784600085
Citation statistics
Cited Times:62[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8286
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorFang, HP (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, POB 800-204, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Li, HB,Lu, XY,Fang, HP,et al. Force evaluations in lattice Boltzmann simulations with moving boundaries in two dimensions[J]. PHYSICAL REVIEW E,2004,70(2).
APA Li, HB,Lu, XY,Fang, HP,Qian, YH,&Fang, HP .(2004).Force evaluations in lattice Boltzmann simulations with moving boundaries in two dimensions.PHYSICAL REVIEW E,70(2).
MLA Li, HB,et al."Force evaluations in lattice Boltzmann simulations with moving boundaries in two dimensions".PHYSICAL REVIEW E 70.2(2004).
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