Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지
DOI QR코드

DOI QR Code

INERTIAL MIGRATION AND DYNAMICS OF AN ELASTIC CAPSULE IN CHANNEL FLOW

채널 유동 내 유연한 캡슐의 관성 이동과 움직임

  • Shin, S.J. (Fluid System Design Division, Advanced Reactor Development Institute, KAERI) ;
  • Sung, H.J. (Dept. of Mechanical Engineering, KAIST)
  • 신수재 (한국원자력연구원 신형원자로개발연구소 유체계통설계부) ;
  • 성형진 (한국과학기술원 기계공학과)
  • Received : 2012.05.04
  • Accepted : 2012.06.07
  • Published : 2012.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

We explored the dynamic motions and the lateral equilibrium positions of an elastic capsule in channel flow at moderate Reynolds number varying Re, aspect ratio, size ratio, membrane stretching and bending coefficient. The transition of tank-treading/swinging to tumbling motion was observed in the simulations and the transition of dynamic motions for capsules resulted in different trend of the variation in the lateral equilibrium positions. Though other conditions were similar, the capsule with tumbling motion migrated closer to the wall than that with tank-treading motion.

Keywords

References

  1. 1993, Chang, K.S. and Olbricht, W.L., "Experimental studies of the deformation of a synthetic capsule in extensional flow," J. Fluid Mech., Vol.250, pp.587-608. https://doi.org/10.1017/S0022112093001570
  2. 2003, Pozrikidis, C., "Numerical simulation of the flow-induced deformation of red blood cells," Ann. Bio-med. Eng., Vol.31, pp.1194-1205. https://doi.org/10.1114/1.1617985
  3. 2007, Sui, Y., Chew, Y.T., Roy, P., Chen, X.B. and Low, H.T., "Transient deformation of elastic capsules in shear flow: Effect of membrane bending stiffness," Phys. Rev. E, Vol.75, pp.066301. https://doi.org/10.1103/PhysRevE.75.066301
  4. 2009, Bagchi, P. and Kalluri, R. M., "Dynamics of nonspherical capsules in shear flow," Phys. Rev. E, Vol.80, pp.016307. https://doi.org/10.1103/PhysRevE.80.016307
  5. 2008, Doddi, S.K., Bagchi, P., "Lateral migration of a capsule in a plane Poiseuille flow in a channel," Int. J. Multiph. Flow, Vol.34, pp.966-986. https://doi.org/10.1016/j.ijmultiphaseflow.2008.03.002
  6. 2009, Ma, G., Hua, J. and Li, H., "Numerical modeling of the behavior of an elastic capsule in a microchannel flow:The initial motion," Phys. Rev. E, Vol.79, pp.046710. https://doi.org/10.1103/PhysRevE.79.046710
  7. 2009, Di Carlo, D., "Inertial microfluidics," Lab Chip, Vol.9, pp.3038-3046. https://doi.org/10.1039/b912547g
  8. 2010, Choi, Y.-S. and Lee, S.-J., "Holographic analysis of three-dimensional inertial migration of spherical particles in micro-scale pipe flow," Microfluid Nanofluid, Vol.9, pp.819-829. https://doi.org/10.1007/s10404-010-0601-8
  9. 2009, Park, J.-S., Song, S.-H. and Jung, H.-I., "Continuous focusing of microparticles using inertial lift force and vorticity via multi-orifice microfluidic channels," Lab Chip, Vol.9, pp.939-948. https://doi.org/10.1039/b813952k
  10. 2011, Hur, S.C., Henderson-MacLennan, N.K., McCabe, E.R.B. and Di Carlo, D., "Deformability-based cell classification and enrichment using inertial microfluidics," Lap Chip, Vol.11, pp.912-920. https://doi.org/10.1039/c0lc00595a
  11. 2011, Kilimnik, A., Mao, W. and Alexeev, A., "Inertial migration of deformable capsules in channel flow," Phys. Fluids, Vol.23, pp.123302. https://doi.org/10.1063/1.3664402
  12. 2011, Shin, S.J. and Sung, H.J., "Inertial migration of an elastic capsule in a Poiseuille flow," Phys. Rev. E, Vol.83(4), pp.321-333.
  13. 2011, Song, C., Shin, S.J, Sung, H.J. and Chang, K.-S., "Dynamic fluid-structure interaction of an elastic capsule in a viscous shear flow at moderate Reynolds number," J. Fluid. Struct., Vol.27, pp.438-455. https://doi.org/10.1016/j.jfluidstructs.2010.11.011