Results 41 to 50 of about 243,456 (164)

Energy Spectra in Rayleigh-Benard Convection

Journal of Physics: Conference Series, 2011
We present a numerical study of the energy spectra and fluxes in the inertial range of turbulent Rayleigh-Benard convection for a wide range of Prandtl number. We consider both free-slip and no-slip conditions for our simulation. Our results support the Kolmogorov-Obukhov (KO) scaling for velocity field for zero-Prandtl number and low-Prandtl number (P
Mahendra K Verma, Pankaj Mishra, Mani Chandra, Supriyo Paul   +3 more
openaire   +1 more source

A Model Intercomparison Study of Mixed‐Phase Clouds in a Laboratory Chamber

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.
Abstract Supercooled liquid water often persists in mixed‐phase clouds for hours to days, even though a simple, well‐mixed Wegener‐Bergeron‐Findeisen model predicts rapid depletion of liquid water in the presence of ice. The persistence is well documented, but the relative importance of the maintaining mechanisms remains uncertain.
Aaron Wang, Sisi Chen, Steven K. Krueger, Piotr Dziekan, Kotaro Enokido, Fabian Hoffmann, Agnieszka Makulska, Bernhard Mehlig, Gaetano Sardina, Grigory Sarnitsky, Silvio Schmalfuß, Shin‐ichiro Shima, Fan Yang, Mikhail Ovchinnikov, Raymond A. Shaw   +14 more
wiley   +1 more source

Analysis of Turbulent Free Convection in a Rectangular Rayleigh-Benard Cell [PDF]

, 2007
The present study compares results of direct numerical simulations of thermal convection within a rectangular geometry with Rayleigh-Benard convection in thin fluid layers and cylindrical geometries.
Kaczorowski, Matthias, Wagner, Claus
core  

Turbulent superstructures in Rayleigh-Bénard convection

Nature Communications, 2018
Turbulent fluids in nature, counter-intuitively, can exhibit large-scale order that persists for long times. Pandey et al. numerically characterize the formation of these superstructures in turbulent convection by separating the fast motions at small ...
Ambrish Pandey, Janet D. Scheel, Jörg Schumacher   +2 more
doaj   +1 more source

High‐Resolution LiDAR Observations for Coupled Effects of Dry‐Air Entrainment and Haze‐Cloud Interactions on Cloud Vertical Structure

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract This study demonstrates the high‐resolution profiling of cloud microphysics in a laboratory chamber using Time‐Correlated Single Photon Counting (TCSPC) LiDAR. We present a novel retrieval method to derive vertical extinction (σ) $(\sigma )$ profiles, constrained by in situ measurements, to diagnose responses to dry‐air entrainment.
Jae Min Yeom, Suryadev Pratap Singh, Fan Yang, Hamed Fahandezh Sadi, Jesse C. Anderson, Yong Meng Sua, Manikandan Rajagopal, Steven K. Krueger, Will Cantrell, Raymond A. Shaw   +9 more
wiley   +1 more source

Physics‐Informed Machine Learning Framework to Retroactively Estimate Mantle Thermal Convection From Partial Geophysical Observations

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Mantle convection drives the solid Earth, powering plate motions, volcanism, and earthquakes while regulating planetary heat loss. Reconstructing its history is hampered by sparse, noisy observations concentrated near the surface and the present day. Here I develop an inverse physics‐informed neural network framework to estimate mantle thermal
Atsushi Nakao
wiley   +1 more source

Oscillatory Instabilities of Two-Layer Rayleigh-Marangoni-Benard Convection [PDF]

, 2006
The Rayleigh–Marangoni–Bénard convective instability (R–M–B instability) in the two-layer systems such as Silicone oil (10cSt)/Fluorinert (FC70) and Silicone oil (2cSt)/water liquids are studied.
刘荣, Liu, QS (reprint author), Chinese Acad Sci, Inst Mech, NML, Beijing 100080, Peoples R China., 周炳宏, 刘秋生   +3 more
core   +1 more source

Study on the Instability of Two-Phase Flow in the Heat-Absorbing Tube of Trough Solar Collector

International Journal of Photoenergy, 2017
The Marangoni effect and Rayleigh-Benard effect in the two-phase region of solar trough heat-absorbing tube are simulated by FTM (front tracking method). Considering the Marangoni effect alone, although surface tension gradient and surface tension affect
Ying Zhang, Peiyao Liu, Peisheng Li, Yue Chen, Yanni Pan   +4 more
doaj   +1 more source

Diffusion‐Free Scaling in Rotating Spherical Rayleigh‐Bénard Convection

Geophysical Research Letters, 2021
Direct numerical simulations are employed to reveal three distinctly different flow regions in rotating spherical Rayleigh‐Bénard convection. In the high‐latitude region I vertical (parallel to the axis of rotation) convective columns are generated ...
Guiquan Wang, Luca Santelli, Detlef Lohse, Roberto Verzicco, Richard J. A. M. Stevens   +4 more
doaj   +1 more source

How Does Ice Shell Geometry Shape Ocean Dynamics on Icy Moons?

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract A poleward‐thinning ice shell can drive circulation in the subsurface oceans of icy moons by imposing a meridional temperature gradient–colder at the equator than the pole–through the freezing point suppression due to pressure. This temperature gradient sets a buoyancy gradient, whose sign depends on the thermal expansion coefficient ...
Yixiao Zhang, Wanying Kang, John Marshall   +2 more
wiley   +1 more source