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Lattice Boltzmann simulation on particle suspensions in a two-dimensional symmetric stenotic artery
Li, HB(李华兵); Fang, HP(方海平); Lin, ZF; Xu, SX; Chen, SY; 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
Volume69Issue:3
AbstractThe technique of lattice Boltzmann simulation has been applied to the study of two-dimensional particle suspensions through a modeled arterial stenosis. The stenosis model consists of two-side symmetric semicirculars in a planar channel with the width of the stenosis throat larger than d and less than 2d, where d is the diameter of the particles. When only one particle is positioned off-centerline initially, the particle migrates off-centerline after passing the stenosis and the velocity at the stenosis throat is much larger than that in a flat tube. Only when two particles are positioned symmetrically to the centerline to a very high accuracy can the flow be blocked by two particles completely. A very small asymmetry will be amplified proximal to the stenosis throat in that one of the particles goes back to leave space to let the other particle passing the stenosis first so that the particles cannot be blocked. An evidence of attractive interactions between the particles as well as a particle and a proximal protuberance is observed when the asymmetry is very small and the width at the stenosis throat is between two critical values. The hematocrit distribution of the particles is studied by simulating multiparticle suspensions. It is found that the width of the stenosis throat has a significant influence on the hematocrit distribution of the particles in the flat tubes far from the stenosis.
Subject AreaChemistry
Indexed BySCI
Language英语
Funding Project应物所项目组
WOS IDWOS:000220729100078
Citation statistics
Cited Times:68[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8309
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,Fang, HP,Lin, ZF,et al. Lattice Boltzmann simulation on particle suspensions in a two-dimensional symmetric stenotic artery[J]. PHYSICAL REVIEW E,2004,69(3).
APA Li, HB,Fang, HP,Lin, ZF,Xu, SX,Chen, SY,&Fang, HP .(2004).Lattice Boltzmann simulation on particle suspensions in a two-dimensional symmetric stenotic artery.PHYSICAL REVIEW E,69(3).
MLA Li, HB,et al."Lattice Boltzmann simulation on particle suspensions in a two-dimensional symmetric stenotic artery".PHYSICAL REVIEW E 69.3(2004).
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