Results 61 to 70 of about 259 (134)

Symmetry Breaking in Chemical Systems: Engineering Complexity Through Self‐Organization and Marangoni Flows

Advanced Science, Volume 13, Issue 5, 27 January 2026.
We show that solutal Marangoni flows in thin films climbing the outer surfaces of hydrophilic obstacles break circular Belousov‐Zhabotinsky waves into striking flower‐like patterns. Evaporation‐driven surface‐tension gradients, coupled with gravity, trigger the instability; above a threshold, petal number scales linearly with obstacle diameter ...
Sangram Gore, Binaya R. Paudyal, Duarte Rocha, Mohamed Ali, Nader Masmoudi, Albert J. Bae, Christian Diddens, Detlef Lohse, Oliver Steinbock, Azam Gholami   +9 more
wiley   +1 more source

Impacts of high viscosity variation and internal heating on mantle convection in different aspect ratio cells

Heliyon
This study examines the Rayleigh-Bénard convection model with free slip boundary conditions appropriate for the Earth's mantle in narrow and elongated cells with aspect ratios of 1:2 and 2:1, respectively.
Tania S. Khaleque, Md. Shafiul A. Khan, Romana Yesmin   +2 more
doaj   +1 more source

Two-Dimensional Lattice Boltzmann for Reactive Rayleigh–Bénard and Bénard–Poiseuille Regimes

Entropy, 2015
We perform a computer simulation of the reaction-diffusion and convection that takes place in Rayleigh–Bénard and Bénard–Poiseuille regimes. The lattice Boltzmann equation (LBE) is used along with the Boussinesq approximation to solve the non-linear ...
Suemi Rodríguez-Romo, Oscar Ibañez-Orozco   +1 more
doaj   +1 more source

Computational Fluid Dynamic Analysis of Fluid Motion and Volumetric Gas–Liquid Mass Transfer in Agitated Platelet Concentrate Storage

Biotechnology Journal, Volume 21, Issue 1, January 2026.
Graphical Abstract and Lay Summary Platelets (PLTs) are small blood cells that play a vital role in stopping bleeding. After donation, they are stored in special bags, but their quality decreases over time. One reason for this decline is the mechanical stress they experience during collection, processing, and storage.
Dean Pym, Amanda J. Davies, Jessica O. Williams, Christine Saunders, Chloë E. George, Allan Mason‐Jones, Philip E. James   +6 more
wiley   +1 more source

The effect of controlled vibrations on Rayleigh-Benard convection

Journal of Physics: Conference Series, 2021
Abstract The paper presents the results of a numerical study of convective heat transfer in a long horizontal layer heated from below with and without the vibration effect of the lower wall. The simulation was carried out on the basis of solving the Navier-Stokes 2D equations for an incompressible fluid in the Boussinesq approximation ...
openaire   +1 more source

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

Heat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey, Muhammad Ashraf, A. M. Rashad, Ali J. Chamkha   +3 more
wiley   +1 more source

Numerical Study of Rotating Thermal Convection on a Hemisphere

Fluids, 2020
Numerical simulations of rotating two-dimensional turbulent thermal convection on a hemisphere are presented in this paper. Previous experiments on a half soap bubble located on a heated plate have been used for studying thermal convection as well as the
Patrick Fischer, Charles-Henri Bruneau, Hamid Kellay   +2 more
doaj   +1 more source

Moist convection and radiative cooling: Dynamical response and scaling

Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 775, January 2026 Part B.
The mechanism that sets the updraught velocities in deep convective clouds is studied here using cloud‐resolving model simulations in radiative–convective equilibrium. We show that, for simulations with vastly different rates of radiative cooling and surface temperatures, the buoyancy in clouds remains remarkably constant (histogram shown here).
Lokahith Agasthya, Caroline Muller
wiley   +1 more source

Approximate Analytical Solutions of the Time‐Fractional Swift–Hohenberg Equation via Yang Transform Adomian Decomposition Method

Journal of Applied Mathematics, Volume 2026, Issue 1, 2026.
This study examines approximate analytical solutions of the time‐fractional Swift–Hohenberg equation involving the Caputo–Fabrizio fractional derivative. The main objective of this study is to investigate efficient analytical approximation techniques using the Yang transform Adomian decomposition method (YTADM).
Mustafa Ahmed Ali, Mehmet Merdan, Serbay Duran   +2 more
wiley   +1 more source

A heat transfer correlation of Poiseuille-Rayleigh-Bénard convection in the thermal entrance region of a horizontal rectangular channel

Case Studies in Thermal Engineering
In order to understand heat transfer characteristics and obtain a heat transfer correlation of Poiseuille-Rayleigh-Bénard (P-R-B) convection in the thermal entrance region of a horizontal rectangular channel, we performed a series of the direct numerical
Yu-Zhi Zhu, Yue Huang, Li Zhang, You-Rong Li   +3 more
doaj   +1 more source