Results 31 to 40 of about 221 (89)

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

Thermal Analysis of Phase Change Material Based Energy Storage Module With Triply Periodic Minimal Surfaces

Energy Storage, Volume 8, Issue 4, June 2026.
ABSTRACT The thermal performance of two triply periodic minimal surface (TPMS) thermal Energy Storage modules, Diamond and Primitive, was investigated using computational fluid dynamics. The melting and solidification behaviors, as well as the charging and discharging characteristics, of the TPMS Energy Storage units were studied for various flow rates.
Tong Su, Guanyang Xue, Setayesh Javadirad, Animesh Kundu, Alparslan Oztekin   +4 more
wiley   +1 more source

Vertical heat transport at infinite Prandtl number for micropolar fluid

Archives of Mechanics, 2020
We investigate the upper bound on the vertical heat transport in the fully 3D Rayleigh–Bénard convection problem at the infinite Prandtl number for a micropolar fluid.
M. Caggio, P. Kalita, G. Łukaszewicz, K.A. Mizerski   +3 more
doaj   +1 more source

Topographically Controlled Marangoni-Rayleigh-Bénard Convection in Liquid Metals

Fluids, 2021
Convection induced in a layer of liquid with a top free surface by a distribution of heating elements at the bottom can be seen as a variant of standard Marangoni–Rayleigh–Bénard Convection where in place of a flat boundary at constant temperature ...
Marcello Lappa, Aydin Sayar, Wasim Waris
doaj   +1 more source

Localized Convection in Sputnik Planitia, Pluto

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract The cellular plains on Sputnik Planitia (SP) are thought to originate from convection in the nitrogen ice layer that fills the basin. Whereas the cells toward the center of SP's cellular plains are wider and interconnected—features explained by vigorous convection—the cells near the margins are smaller and less contiguous, with some appearing ...
C. Jain, V. S. Solomatov, W. B. McKinnon
wiley   +1 more source

Tailoring Defective Tungsten Oxide Aerogel Evaporator for Enhanced Solar Steam Generation and Heavy Metal Adsorption Toward Agricultural Irrigation

Carbon Neutralization, Volume 5, Issue 3, May 2026.
A cost‐effective defective WO3−x@cellulose aerogel composites that simultaneously convert wastewater into agricultural irrigation water through solar‐driven freshwater generation and heavy metal remediation was proposed. And the precision defect engineering of oxygen‐vacancy modulated WO3−x nanocrystals demonstrate excellent solar absorption efficiency
Baihang Cai, Wei Zhao, Zhonghua Yuan, Jie Xiao, Dajun Li, Yuntao Cui, Yanru Wang, Chenglu Jiang, Yun Zeng, Yingjun She, Jiangtao Zhao, Hongzhang Wang, Yang Zhao, Jun‐Heng Fu   +13 more
wiley   +1 more source

Impact of Uncertain Parameters on Navier–Stokes Equations With Heat Transfer via Polynomial Chaos Expansion

International Journal for Numerical Methods in Fluids, Volume 98, Issue 5, Page 557-577, May 2026.
This study investigates the impact of uncertain parameters on Navier–Stokes equations coupled with heat transfer using the Intrusive Polynomial Chaos Method (IPCM). Sensitivity equations are formulated for key input parameters, such as viscosity and thermal diffusivity, and solved numerically using the Finite Element‐Volume method.
N. Nouaime, B. Després, M. A. Puscas, C. Fiorini   +3 more
wiley   +1 more source

ROTATING RAYLEIGH-BENARD CONVECTION

TASK Quarterly, 2008
In the this paper our results on the natural convection in an enclosed rotating cavity are presented. We have focused our attention on the influence of the Rayleigh and Taylor numbers on the flow structure.
WOJCIECH MAJCHROWSKI, EWA TULISZKA-SZNITKO   +1 more
doaj  

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

Evaluating the Collision‐Coalescence Process in Idealized Cloud Convection Using Large‐Eddy Simulations With Lagrangian Microphysics

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Drizzle initiation through the collision and coalescence of cloud droplets plays a crucial role in warm cloud precipitation. Recent theoretical studies suggest that the influence of collisional growth on the droplet size distribution can be quantified by a non‐dimensional drizzle number (Dz).
Yangze Ren, Kamal Kant Chandrakar, Fan Yang, Raymond A. Shaw   +3 more
wiley   +1 more source