To understand turbulent convection at very high Rayleigh numbers typical of natural phenomena, computational studies in slender cells are an option if the needed resources …
D Wang, S Liu, Q Zhou, C Sun - Physics of Fluids, 2022 - pubs.aip.org
We analyze the power spectra and structure functions (SFs) of the temperature and radial velocity fields, calculated in the radial and azimuthal directions, in annular centrifugal …
In this paper, we develop a multivariate regression model and a neural network model to predict the Reynolds number (Re) and Nusselt number in turbulent thermal convection. We …
Horizontally extended turbulent convection, termed mesoscale convection in natural systems, remains a challenge to investigate in both experiments and simulations. This is …
Y Li, H Mei, S Ye, Z Tao, H Deng, X Wu, R Rao - Photonics, 2024 - mdpi.com
Controlled turbulence simulators in the laboratory have been extensively employed to investigate turbulence effects on light propagation in the atmosphere, driven by some …
R Samuel, R Samtaney, MK Verma - Physics of Fluids, 2022 - pubs.aip.org
We adopt the stretched spiral vortex sub-grid model for large-eddy simulation (LES) of turbulent convection at extreme Rayleigh numbers. We simulate Rayleigh–Bénard …
S Smirnov, A Smirnovsky, S Bogdanov - Fluids, 2021 - mdpi.com
The revealing of the turbulence archetypes is one of the fundamental problems in the study of turbulence, which is important not only from the fundamental point of view but also for …
Understanding the behavior of the kinetic energy spectrum and flux in two-dimensional (2D) turbulent thermal convection remains a challenge. In this paper, using high-resolution direct …
M Sharma, K Chand, AK De - Physics of Fluids, 2024 - pubs.aip.org
In the present study, we numerically investigate the effect of Prandtl number on the heat transfer mechanism in turbulent Rayleigh–Bénard convection inside a cubical box endowed …