BICKEL, Thomas; MAJEE, Arghya; WÜRGER, Alois

doi:10.1103/PhysRevE.88.012301

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BICKEL, Thomas
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

MAJEE, Arghya
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Max-Planck-Institut für Intelligente Systeme
Institut für Theoretische Physik IV [Leipzig] [ITP4]

WÜRGER, Alois
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Zentrum für Höhere Studien [Leipzig] [ZHS]

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Physical Review E : Statistical, Nonlinear, and Soft Matter Physics. 2013-06-24, vol. 88, n° 1, p. 012301 (1-6)

American Physical Society

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We study the temperature field and the resulting flow pattern in the vicinity of a heated metal-capped Janus particle. If its thickness exceeds about 10 nm, the cap forms an isotherm and the flow pattern comprises a quadrupolar term that decays with the square of the inverse distance ∼r−2. For much thinner caps the velocity varies as ∼r−3. These findings could be relevant for collective effects in dense suspensions and for the circular tracer motion observed recently in the vicinity of a tethered Janus particle.< Leer menos

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Flow pattern in the vicinity of self-propelling hot Janus particles

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