Results 41 to 50 of about 603 (136)

Multiple Steady States in Laminar Rayleigh–Bénard Convection of Air

Fluids, 2023
In this article, we report on numerical simulations of laminar Rayleigh–Bénard convection of air in cuboids. We provide numerical evidence of the existence of multiple steady states when the aspect ratio of the cuboid is sufficiently large.
Julien Carlier, Miltiadis V. Papalexandris   +1 more
doaj   +1 more source

Scaling of Latitude‐Dependent Heat Transport in Geostrophic Convection

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Latitudinal variations in heat transport shape the thermal and magnetic evolution of rapidly rotating planets, stars, and icy moons. Although global simulations have revealed strong equatorial–polar contrasts, a predictive scaling theory has been lacking.
Veeraraghavan Kannan, Varghese Mathai, Xiaojue Zhu   +2 more
wiley   +1 more source

Experimental and numerical study of turbulent penetrative Rayleigh-Bénard flow of water near 4 °C in a box-shaped container

Case Studies in Thermal Engineering
Understanding the reversal process of the large-scale circulation will facilitate system recognition of turbulent penetrative Rayleigh-Bénard convection.
Xiao-Jie Huang, Guang-Yong Gao, You-Rong Li   +2 more
doaj   +1 more source

Fast and Slow Signal Propagation in Abiotic Polypeptide Assemblies

ChemBioChem, Volume 27, Issue 6, 27 March 2026.
Proteinoid microspheres formed by thermal polymerization of amino acids exhibit spontaneous electrical potential fluctuations without genetic material, membranes, or ion channels. Multi‐electrode recordings and electron microscopy reveal composition‐dependent voltage oscillations, long‐term drifts, and correlated signals across electrodes.
Panagiotis Mougkogiannis, Andrew Adamatzky   +1 more
wiley   +1 more source

Morphological Regimes of Rotating Moist Convection

The Astrophysical Journal
Moist convection is a physical process in planetary atmospheres where the latent heat released by condensation acts as a buoyancy source that can enhance or even trigger an overturning convective instability.
Whitney T. Powers, Adrian E. Fraser, Evan H. Anders, Jeffrey S. Oishi, Benjamin P. Brown   +4 more
doaj   +1 more source

GENETIC SOURCES AND TECTONOPHYSICAL REGULARITIES OF DIVISIBILITY OF THE LITHOSPHERE INTO BLOCKS OF VARIOUS RANKS AT DIFFERENT STAGES OF ITS FORMATION: TECTONOPHYSICAL ANALYSIS

Геодинамика и тектонофизика, 2015
The paper presents the first tectonophysical reconstruction of initial divisibility of the protolithosphere as a result of convection in the cooling primitive mantle. Initial division of the protolithosphere into separate masses, i.e.
Semen I. Sherman
doaj   +1 more source

Flow Compensation Recovers Sensitivity Lost to Convection in Gradient‐Enhanced TOCSY NMR Experiments

Chemistry–Methods, Volume 6, Issue 3, March 2026.
Gradient‐enhanced TOCSY techniques are an essential tool in the NMR spectroscopist's toolkit. However, in the presence of convection, signal intensities can be severely diminished, an issue that is particularly common when using cryoprobes. Here, we present an easily implemented TOCSY experiment that reverses signal loss due to convection and ...
Elsa Caytan, Harry Harbor‐Collins, Mathias Nilsson, Ralph W. Adams, Gareth A. Morris   +4 more
wiley   +1 more source

Controlling the Collective Transport of Large Passive Particles With Suspensions of Microorganisms

Small, Volume 22, Issue 18, 25 March 2026.
Directional light stimuli induce the accumulation of microalgae in suspensions of Chlamydomonas reinhardtii. This accumulation triggers large scale bioconvection rolls capable of macroscale transport. Exploiting these bioconvective flows enables to collectively transport of hundreds of large passive particles, paving the way for future applications in ...
Taha Laroussi, Julien Bouvard, Etienne Jambon‐Puillet, Mojtaba Jarrahi, Gabriel Amselem   +4 more
wiley   +1 more source

The Barrel of Ilmenau: A large-scale convection experiment to study dust devil-like flow structures.

Meteorologische Zeitschrift, 2021
We present an experimental facility for the validation of numerical simulations on atmospheric dust devils in a controlled laboratory experiment. Dust devils are atmospheric air vortices with a vertical axis, and are formed by intense solar radiation and
Alice Loesch, Ronald du Puits
doaj   +1 more source

Slantwise Convection and Heat Transport in Icy Moon Oceans

Geophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Ocean heat transport on icy moons shapes the ice shell topography, a primary observable of these moons. Two key processes control the heat transport: baroclinic instability driven by surface buoyancy contrasts and convective instability driven by heating from the core.
Yaoxuan Zeng, Malte F. Jansen
wiley   +1 more source