Zobrazeno 1 - 10
of 342
pro vyhledávání: '"Herman, J. H."'
Publikováno v:
Phys. Rev. E 110, 015301 (2024)
In many natural and industrial applications, turbulent flows encompass some form of dispersed particles. Although this type of multiphase turbulent flow is omnipresent, its numerical modeling has proven to be a remarkably challenging problem. Models
Externí odkaz:
http://arxiv.org/abs/2404.10479
We report on an investigation of the vertical transport of tracer particles released within a shallow, continuously-forced flow by means of numerical simulations. The investigation is motivated by the shallow flows encountered in many environmental s
Externí odkaz:
http://arxiv.org/abs/2404.03807
We report flow measurements in rotating Rayleigh--B\'enard convection in the rotationally-constrained geostrophic regime. We apply stereoscopic particle image velocimetry to measure the three components of velocity in a horizontal cross-section of a
Externí odkaz:
http://arxiv.org/abs/2212.10991
Publikováno v:
EPL 135, 54002 (2021)
Rotating Rayleigh--B\'enard convection is an oft-employed model system to evaluate the interplay of buoyant forcing and Coriolis forces due to rotation, an eminently relevant interaction of dynamical effects found in many geophysical and astrophysica
Externí odkaz:
http://arxiv.org/abs/2111.02130
Using direct numerical simulations of rotating Rayleigh-B\'enard convection, we explore the transitions between turbulent states from a 3D flow state towards a quasi-2D condensate known as the large-scale vortex (LSV). We vary the Rayleigh number $Ra
Externí odkaz:
http://arxiv.org/abs/2106.01158
We present the analytical solution for the two-dimensional velocity and density fields within an approximation for laminar stratified inclined duct (SID) flows where diffusion dominates over inertia in the along-channel momentum equation but it is ne
Externí odkaz:
http://arxiv.org/abs/2006.10535
Autor:
Guzmán, Andrés J. Aguirre, Madonia, Matteo, Cheng, Jonathan S., Ostilla-Mónico, Rodolfo, Clercx, Herman J. H., Kunnen, Rudie P. J.
Publikováno v:
Phys. Rev. Lett. 125, 214501 (2020)
We perform direct numerical simulations of rotating Rayleigh--B\'enard convection of fluids with low ($Pr=0.1$) and high ($Pr=5$) Prandtl numbers in a horizontally periodic layer with no-slip top and bottom boundaries. At both Prandtl numbers, we dem
Externí odkaz:
http://arxiv.org/abs/2001.11889
Akademický článek
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Autor:
de Wit, Xander M., Guzmán, Andrés J. Aguirre, Madonia, Matteo, Cheng, Jonathan S., Clercx, Herman J. H., Kunnen, Rudie P. J.
Publikováno v:
Phys. Rev. Fluids 5, 023502 (2020)
Recent studies of rotating Rayleigh-B\'enard convection at high rotation rates and strong thermal forcing have shown a significant discrepancy in total heat transport between experiments on a confined cylindrical domain on the one hand and simulation
Externí odkaz:
http://arxiv.org/abs/1911.06601
Autor:
Alards, Kim M. J., Kunnen, Rudie P. J., Stevens, Richard J. A. M., Lohse, Detlef, Toschi., Federico, Clercx, Herman J. H.
Publikováno v:
Phys. Rev. Fluids 4, 074601 (2019)
In RB convection for fluids with Prandtl number $Pr\gtrsim 1$, rotation beyond a critical (small) rotation rate is known to cause a sudden enhancement of heat transfer which can be explained by a change in the character of the BL dynamics near the to
Externí odkaz:
http://arxiv.org/abs/1907.02451