Evidences of Bolgiano scaling in 3D Rayleigh-Benard convection

Details Evidences of Bolgiano scaling in 3D Rayleigh-Benard convection Evidences of Bolgiano scaling in 3D Rayleigh-Benard convection

2001-11-20

arxiv.org/abs/nlin/0111044v1

Phys. Rev. E 66, 016304 (2002)

Nonlinear Sciences

Chaotic Dynamics

4 pages, 3 figures

Scientific paper

We present new results from high-resolution high-statistics direct numerical simulations of a tri-dimensional convective cell. We test the fundamental physical picture of the presence of both a Bolgiano-like and a Kolmogorov-like regime. We find that the dimensional predictions for these two distinct regimes (characterized respectively by an active and passive role of the temperature field) are consistent with our measurements.

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