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Angular dynamics of small particles in fluids

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Title: Angular dynamics of small particles in fluids
Authors: Einarsson, Jonas
Issue Date: 20-Nov-2015
University: Göteborgs universitet. Naturvetenskapliga fakulteten
Institution: Department of Physics ; Institutionen för fysik
Parts of work: Paper A: Effect of weak fluid inertia upon Jeffery orbits, J. Einarsson, F. Candelier, F. Lundell, J. R. Angilella, and B. Mehlig, Phys. Rev. E 91, 041002(R) (2015)

Paper B: Role of inertia for the rotation of a nearly spherical particle in a general linear flow, F. Candelier, J. Einarsson, F. Lundell, B. Mehlig, and J.-R. Angilella, Phys. Rev. E 91, 053023 (2015)

Paper C: Rotation of a spheroid in a simple shear at small Reynolds number, J. Einarsson, F. Candelier, F. Lundell, J. R. Angilella and B. Mehlig, Phys. Fluids 27, 063301 (2015)

Paper D: Numerical analysis of the angular motion of a neutrally buoyant spheroid in shear flow at small Reynolds numbers, T. Rosen, J. Einarsson, A. Nordmark, C. K. Aidun, F. Lundell, B. Mehlig, in review Physical Review E (2015) arXiv:1508.04976

Paper E: Tumbling of asymmetric microrods in a microchannel flow, J. Einarsson, B. M. Mihiretie, A. Laas, S. Ankardal, J. R. Angilella, D. Hanstorp, B. Mehlig, in review Physics of Fluids (2015) (arXiv:1503.03023)

Paper F: Shape-dependence of particle rotation in isotropic turbulence, M. Byron, J. Einarsson, K. Gustavsson, G. Voth, B. Mehlig and E. Variano, Phys. Fluids 27, 035101 (2015)

Date of Defence: 2015-12-14
Disputation: Dec. 14, 2015. 09:00 in PJ-salen, Fysikgården 2, Göteborg
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: Fluid mechanics
Particle dynamics
Multi-phase flow
Abstract: This thesis concerns the angular motion of small particles suspended in fluid flows. A small particle experiences a hydrodynamic torque due to the local fluid velocity, and this torque leads to rotational motion. When inertial effects are negligible the torque on an ellipsoidal particle is given by Jeffery's theory [Jeffery, G. B. Proc. R. Soc. Lond. A 102, 161–179 (1922)]. In this thesis and the appended papers I describe three studies that all relate to this well-known result. First, we d... more
ISBN: 978-91-628-9656-0
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för fysik



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