Results 71 to 80 of about 8,244 (250)

Enhancing Efficiency in Double‐Pipe Heat Exchangers: A Detailed Review of NanoFluids and Their Impact on Thermal Performance

open access: yesHeat Transfer, Volume 55, Issue 1, Page 212-240, January 2026.
ABSTRACT This study reviews recent advances in using nanofluids to enhance double‐pipe heat exchanger (DPHE) efficiency. The review examines several types of nanofluids, that is, water‐based graphene oxide and CuO–water nanofluids, assessing their effectiveness under different operating conditions, including inlet temperature and nanoparticle volume ...
Farhan Lafta Rashid   +8 more
wiley   +1 more source

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

open access: yesHeat 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   +3 more
wiley   +1 more source

Numerical study of nanofluid natural convection in a square cavity with a hot obstacle using lattice Boltzmann method

open access: yesAlexandria Engineering Journal, 2018
In the present work, for the first time, laminar natural convection of water-TiO2 nanofluid around a hot obstacle in a square cavity is simulated by Lattice Boltzmann Method (LBM).
A.R. Rahmati, A.A. Tahery
doaj   +1 more source

A unified thermo‐chemo‐mechanical model for passive, active, and interfacial oxidation of silicon carbide

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract Silicon carbide (SiC) is a promising material for hypersonic thermal protection systems, but its complex oxidation behavior—marked by transitions between passive, active, and interfacial bubbling regimes—can lead to catastrophic failure. Existing SiC models typically focus exclusively on either passive or active oxidation.
Théo A. Rulko, Raúl A. Radovitzky
wiley   +1 more source

Influence of Layering and Curie Temperature Uncertainty on the Performance of Multilayer Active Magnetic Regenerators

open access: yesAdvanced Functional Materials, Volume 35, Issue 52, December 23, 2025.
This study examines how manufacturing uncertainties in Curie temperatures (1.5–2°C) affect multilayer active magnetic regenerators (AMR). While increasing the number of magnetocaloric layers boosts cooling power, performance degrades due to temperature variations.
Urban Tomc   +6 more
wiley   +1 more source

Mechanistic Modeling of Continuous Lyophilization for Biopharmaceutical Manufacturing

open access: yesAdvanced Science, Volume 12, Issue 47, December 18, 2025.
This article presents the first mechanistic model for continuous lyophilization (aka freeze drying). The model accurately describes the key phenomena and critical process parameters in continuous lyophilization, which can be used for process design, optimization, and control. Results from this work can drive the transition of (bio)pharmaceutical freeze
Prakitr Srisuma   +2 more
wiley   +1 more source

Effects of Slip Boundaries on Mixed Convection of Al2O3-water Nanofluid in Microcavity [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2015
Due to the importance of the slip effect on modeling of microchannel and microcavity, numerical investigations have been introduced in this work for studying the mixed convection of Al2O3-water nanofluid in a square microcavity.
A. R. Rahmati   +3 more
doaj  

Spectrally Engineered Greenhouse Cool Cover for Energy and Water Efficiency in Diverse Climates

open access: yesAdvanced Energy and Sustainability Research, Volume 6, Issue 12, December 2025.
A spectrally selective multilayer cool cover reflects NIR and transmits photosynthetically active radiation to reduce cooling demand while maintaining crop productivity. Designed for hot climates, it enhances energy and water efficiency in greenhouses.
Amrit Kumar Thakur   +3 more
wiley   +1 more source

Effects of viscous dissipation over an unsteady stretching surface embedded in a porous medium with heat generation and thermal radiation

open access: yesInternational Journal of Applied Mechanics and Engineering
This work analyzes the impact of viscous dissipation on an unstable stretching surface in a porous medium with heat generation and thermal radiation—an important factor for numerous engineering applications like cooling baths and plastic sheets.
Samuel Oluyemi Owoeye   +3 more
doaj   +1 more source

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