| INTERACTIONS BETWEEN TWO SEDIMENTING PARTICLES WITH DIFFERENT SIZES |
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| 引用本文： | 邵雪明 刘杨 余钊圣. INTERACTIONS BETWEEN TWO SEDIMENTING PARTICLES WITH DIFFERENT SIZES[J]. 应用数学和力学(英文版), 2005, 26(3): 407-414. DOI: 10.1007/BF02440092 |
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| 作者姓名： | 邵雪明 刘杨 余钊圣 |
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| 作者单位： | Department of Mechanics，Zhejiang University，Hangzhou 310027，P. R. China，Department of Mechanics，Zhejiang University，Hangzhou 310027，P. R. China，Department of Mechanical and Mechatronic Engineering，The University of Sydney，NSW 2006，Australia |
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| 基金项目： | ProjectsupportedbytheNationalNaturalScienceFoundationofChina (No .1 0 472 1 0 4)andtheNaturalScienceFoundationofZhejiangProvinceGovernment(No.1 0 1 0 47) |
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| 摘 要： | IntroductionParticulateflowsarecommonlyencounteredinvariousnaturalphenomenaandindustrialprocesses,suchasinthechemicalandpetroleumindustries,thesedimentationofparticlesisawayofseparatingparticlesfromfluid ,aswellasawayofseparatingparticleswithdifferentsettlingspeedsfromeachother[1].Animportantaspectoftheseflowsisparticlepairinteraction ,whichisfundamentalmechanismsthatenterstronglyintoallpracticalapplicationsofparticulateflows.Problemofthesedimentationoftwoequalparticleshasbeenpreviouslystudied…
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| 关 键 词： | 交感作用 拉格朗日放大器 假域法 循环粒子 多相流 |
| 收稿时间： | 2003-08-25 |
Interactions between two sedimenting particles with different sizes |
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| Shao Xue-ming Associate Professor, Doctor,Liu Yang,Yu Zhao-sheng. Interactions between two sedimenting particles with different sizes[J]. Applied Mathematics and Mechanics(English Edition), 2005, 26(3): 407-414. DOI: 10.1007/BF02440092 |
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| Authors: | Shao Xue-ming Associate Professor Doctor Liu Yang Yu Zhao-sheng |
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| Affiliation: | 1. Department of Mechanics, Zhejiang University, Hangzhou 310027, P. R. China
2. Department of Mechanical and Mechatronic Engineering, The University of Sydney, NSW 2006, Australia |
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| Abstract: | An improved implementation of Distributed Lagrange multiplier/fictitious domain method was presented and used to simulate the interactions between two circular particles sedimenting in a two_dimensional channel. The simulation results were verified by comparison with experiments. The results show that the interactions between two particles with different sizes can be described as drafting, kissing, tumbling and separating. Only for small diameter ratio, the two particles will interact undergoing repeated DKT (Drafting, Kissing and Tumbling) process. Otherwise, the two particles will separate after their tumbling. The results also show that, during the interaction process, the motion of the small particle is strongly affected while the large particle is affected slightly. |
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| Keywords: | interaction Distributed Lagrange multiplier/fictitious domain method circular particle |
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