Results 51 to 60 of about 1,327 (186)

Forced Draught Impact on Externally Venting Flames: An Experimental and Numerical Investigation

Fire and Materials, EarlyView.
ABSTRACT Wind can significantly influence fire development and spread in urban and forest environments causing fatal consequences for the public, the first responders, and the environment. Wind‐driven fires can have a significant impact on structural fires as wind can increase the fire's intensity, development, and flame spread.
Anoop Subramania Warrier, Jan Smolka, Kamila Kempna, Meet Panchal, Tony Graham, Eleni Asimakopoulou   +5 more
wiley   +1 more source

Prandtl number effect on near wall temperature profile in high-Reynolds number channel flows

Nihon Kikai Gakkai ronbunshu, 2014
Prandtl number (Pr) effects on characteristics of the thermal boundary layer were investigated by means of Direct Numerical Simulations (DNS) in high-Reynolds number turbulent channel flows. The molecular Pr conditions were changed from 0.71 to 25.0, and
Shogo SARUWATARI, Yoshinobu YAMAMOTO
doaj   +1 more source

Scale dependence of the marine atmospheric boundary‐layer response to ocean surface‐temperature variability in the EUREC4$$ {\mathrm{EUREC}}^4 $$A region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
With a minimal physics model and a high‐resolution fully 3D simulation, we demonstrate that the marine atmospheric boundary layer (MABL) response to sea‐surface temperature (SST) variability displays a dependence on the horizontal scales of motion.
Alessandro Storer, Matteo Borgnino, Claudia Pasquero, Agostino Niyonkuru Meroni   +3 more
wiley   +1 more source

Assessment of Turbulence Models in a Hypersonic Cold-Wall Turbulent Boundary Layer

Fluids, 2019
In this study, the ability of standard one- or two-equation turbulence models to predict mean and turbulence profiles, the Reynolds stress, and the turbulent heat flux in hypersonic cold-wall boundary-layer applications is investigated.
Junji Huang, Jorge-Valentino Bretzke, Lian Duan   +2 more
doaj   +1 more source

Bubble‐Mediated Intensification of Biomass‐Based Oil Conversion: Bubble Dynamics, Control Strategies and Equipment

Carbon and Hydrogen, Volume 28, Issue 3, Page 320-339, September 2026.
Focus on the bubble interface transfer behavior during the conversion process of biomass‐based oil, and mainly review the bubble dynamic characteristics in the gas‐solid/gas‐liquid reaction processes under extreme conditions during the conversion process.
Zhenghao Yang, Jiajia Li, Yong Yu, Zhibin Zhou, Benshuai Guo, Yulong Chang, Jianping Li, Xia Jiang   +7 more
wiley   +1 more source

Extension of the turbulent heat flux modelling in OpenFOAM for improved simulation of liquid metal flows

EPJ Nuclear Sciences & Technologies
Turbulent heat transfer is a fundamentally complex physical process that has challenged turbulence modellers for many years. A full differential second-moment closure model provides a solid foundation for the derivation of the simpler Algebraic Heat Flux
Mistry Hemish, Herb Joachim, Papukchiev Angel   +2 more
doaj   +1 more source

A Detailed Review of Colburn and Friction Factors for Various Types of Fins Used in Compact Plate‐Fin Heat Exchangers

Heat Transfer, Volume 55, Issue 6, Page 3495-3522, September 2026.
ABSTRACT Compact plate‐fin heat exchangers (PFHEs) are commonly utilized in diverse industries, including aerospace, automotive, processing, and space. Various fin configurations, such as Plain fins, Wavy fins, Lance and Offset fins (OSFs), Perforated fins, louvered fins, and pin fins, are employed in compact heat exchangers (CHEs).
Chennu Ranganayakulu
wiley   +1 more source

Ocean Mixing Regimes Set Heat and Buoyancy Fluxes From the Arctic's Atlantic Water Layer

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Quantifying Arctic Ocean mixing is important for understanding the Arctic climate system. Direct mixing measurements cannot robustly characterize mixing on a pan‐Arctic scale, while indirect estimates based on parameterizations must be made with care; multiple mixing mechanisms including double diffusion, internal wave breaking and molecular ...
S. Waterman, M. Chanona, H. V. Dosser, N. C. Shibley, M.‐L. Timmermans   +4 more
wiley   +1 more source

Turbulent Prandtl Number and its Use in Prediction of Heat Transfer Coefficient for Liquids

مجلة النهرين للعلوم الهندسية, 2007
A theoretical study is performed to determine the turbulent Prandtl number (Prt ) for liquids of wide range of molecular Prandtl number (Pr=1 to 600) under turbulent flow conditions of Reynolds number range 10000- 100000 by analysis of experimental ...
Basim O. Hasan
doaj  

Heat Transfer Characteristics and Prediction Model of Supercritical Carbon Dioxide (SC-CO2) in a Vertical Tube

Energies, 2017
Due to its distinct capability to improve the efficiency of shale gas production, supercritical carbon dioxide (SC-CO2) fracturing has attracted increased attention in recent years. Heat transfer occurs in the transportation and fracture processes.
Can Cai, Xiaochuan Wang, Shaohua Mao, Yong Kang, Yiyuan Lu, Xiangdong Han, Wenchuan Liu   +6 more
doaj   +1 more source