منابع مشابه
Two-dimensional elastic turbulence.
We report numerical evidence of elastic turbulence phenomenology in a two-dimensional periodic Kolmogorov flow. By direct numerical simulations of the Oldroyd-B viscoelastic model at very small Reynolds numbers, we find that above the elastic instability threshold the flow develops an elastic turbulent regime. We observe that both the turbulent drag and the Lyapunov exponent increase with the W...
متن کاملParticle-laden two-dimensional elastic turbulence
The aggregation properties of heavy inertial particles in the elastic turbulence regime of an Oldroyd-B fluid with periodic Kolmogorov mean flow are investigated by means of extensive numerical simulations in two dimensions. Both the small and large scale features of the resulting inhomogeneous particle distribution are examined, focusing on their connection with the properties of the advecting...
متن کاملElastic waves and transition to elastic turbulence in a two-dimensional viscoelastic Kolmogorov flow.
We investigate the dynamics of the two-dimensional periodic Kolmogorov flow of a viscoelastic fluid, described by the Oldroyd-B model, by means of direct numerical simulations. Above a critical Weissenberg number the flow displays a transition from stationary to randomly fluctuating states, via periodic ones. The increasing complexity of the flow in both time and space at progressively higher v...
متن کاملTwo dimensional gyrokinetic turbulence
G. G. PLUNK1,2,6 †, S. C. COWLEY3,4, A. A. SCHEKOCHIHIN5 AND T. TATSUNO6 Department of Physics, University of California, Los Angeles, CA 90095, USA Wolfgang Pauli Institute, University of Vienna, A-1090 Vienna, Austria EURATOM/UKAEA Fusion Association, Culham Science Centre, Abington OX 143DB, UK Plasma Physics, Blackett Laboratory, Imperial College, London SW7 2AZ, UK Rudolf Peierls Centre fo...
متن کاملTwo dimensional magnetised plasma turbulence
Two dimensional magnetised plasma turbulence G. G. PLUNK1,2,3 †, S. C. COWLEY4,5, A. A. SCHEKOCHIHIN6,7 AND T. TATSUNO7 Department of Physics, University of California, Los Angeles, CA 90095, USA Wolfgang Pauli Institute, University of Vienna, A-1090 Vienna, Austria IREAP, University of Maryland, College Park, MD 20742, USA EURATOM/UKAEA Fusion Association, Culham Science Centre, Abington OX 14...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2008
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.77.055306