Bulletin of the American Physical Society
67th Annual Meeting of the APS Division of Fluid Dynamics
Volume 59, Number 20
Sunday–Tuesday, November 23–25, 2014; San Francisco, California
Session J8: Invited Session: Life on a Surface in a Low-Reynolds Number Flow |
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Chair: John Hinch, University of Cambridge Room: 3001/3003 |
Monday, November 24, 2014 2:00PM - 2:35PM |
J8.00001: Life on a Surface in a Low-Reynolds-Number Flow Invited Speaker: Howard A. Stone There are many studies of the dynamics of swimming microorganisms. There are far fewer studies of how bacteria that attach to surfaces respond to motions of the surrounding fluid. Such motions can influence bacterial orientation, which can, in turn, impact bacterial colonization and motility on surfaces. Moreover, as biofilms develop, stresses from the flow on the surface can cause three-dimensional rearrangements of the soft biofilm in the form of ``streamers'' that can bridge the sides of a porous system; such suspended filaments trigger rapid clogging. Some of the underlying fluid dynamics will be discussed in the spirit of how the flow couples to the spatial and temporal evolution of these bacterial systems. Joint work with N. Autrusson, B. Bassler, K. Drescher, Z. Gitai, L. Guglielmini, F. Ingremeau, M.K. Kim, S. Lecuyer, O. Pak, A. Persat, R. Rusconi, Y. Shen, A. Siryaporn, N. Wingreen [Preview Abstract] |
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