Instytut Podstawowych Problemów Techniki
Polskiej Akademii Nauk

Partnerzy

Steve Kuei

Princeton University (US)

Ostatnie publikacje
1.  Kuei S., Słowicka A.M., Ekiel-Jeżewska M.L., Wajnryb E., Stone H.A., Dynamics and topology of a flexible chain: knots in steady shear flow, NEW JOURNAL OF PHYSICS, ISSN: 1367-2630, DOI: 10.1088/1367-2630/17/5/053009, Vol.17, pp.053009-1-15, 2015

Streszczenie:
We use numerical simulations of a bead–spring model chain to investigate the evolution of the conformations of long and flexible elastic fibers in a steady shear flow. In particular, for rather open initial configurations, and by varying a dimensionless elastic parameter, we identify two distinct conformational modes with different final size, shape, and orientation. Through further analysis we identify slipknots in the chain. Finally, we provide examples of initial configurations of an 'open' trefoil knot that the flow unknots and then knots again, sometimes repeating several times.

Słowa kluczowe:
knots, low Reynolds number flows, multipole method

Afiliacje autorów:
Kuei S. - Princeton University (US)
Słowicka A.M. - IPPT PAN
Ekiel-Jeżewska M.L. - IPPT PAN
Wajnryb E. - IPPT PAN
Stone H.A. - Princeton University (US)
40p.

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