Transient magnetohydrodynamic flow over a rotating vertical porous surface incorporating thermal radiation, hall and ion-slip effects: Using finite element method

A Co-designed deep learning framework embedding physical insights for precise prediction of critical heat flux in microchannel flow boiling

Water volumes, heat flow, and solute discharge from Old Faithful Geyser eruptions, Yellowstone National Park, USA

Neuro-symbolic modeling of a radiative–convective moving radial fin with temperature-dependent conductivity and heat absorption

Operational insights and analyses of an integrated subsea CO2 injection system

Heatline-based investigation of inclined magnetic field effects on heat and fluid flow structures in a hexagonal Fe3O4-water nanofluid flow thermal system

Effects of alternating hydrophilic/hydrophobic structure on flow boiling heat transfer and flow stability in microchannels

The Scotian Basin is a tectonically complex passive margin basin. Triassic salt and Jurassic carbonates are overlain by clastic Cretaceous and Cenozoic rocks that locally form petroleum reservoirs. Its thermal history included mid-Cretaceous lithospheric heating and episodic up-dip flow of hot brines from the deep basin, controlled by salt tectonics. The diagenetic minerals in sandstones were influenced by detrital composition, depositional lithofacies and burial history. Meguma terrane detritus had abundant deformable feldspar, mica, chlorite, and lithic clasts leading to permeability loss during compaction. The Late Jurassic–Early Cretaceous Sable River supplied abundant polycyclic quartz and detrital ilmenite. The eastern basin received more low-grade metamorphic quartz, lithic clasts, micas and feldspars, resulting in more common clay cements. Meteoric water during sea-level lowstands corroded seafloor diagenetic minerals and precipitated kaolinite and anatase. Quartz overgrowths are widespread in sandstones, except where clay coats, now berthierine or chlorite, protected quartz grain surfaces. Remaining porosity was largely filled by Fe-calcite. At depths >2 km, K-feldspars dissolved and created secondary porosity or were partially replaced by albite where faulting or stratigraphic fairways allowed removal of diagenetic products; otherwise clays and carbonate cements were precipitated. Widespread secondary porosity formed during fracturing synchronous with hydrocarbon charge and was partly filled by diverse late minerals, including barite, brookite and illite. Diagenetic chlorite rims preserved porosity in rapidly deposited thick sandstones in areas of volcanic ash supply. Regional trends in detrital composition and diagenetic assemblages are partially obscured by local effects of sedimentary facies and flow of hot brines. • Passive margin basin, complex salt tectonics, detrital supply, and thermal history. • Sable River deposited linear sandstone fairways, up which deep basin fluids flowed. • Eodiagenesis influenced by lithofacies whereas mesodiagenesis by brine fairways. • Hot brine impacted cementation rates and apatite annealing, less so oil maturation. • Feldspar and mica supply favoured clay cement, volcanic ash favoured chlorite rims.

Numerical analysis of heat transfer and flow characteristics of ice slurry in flat-sided oval pipe

Experimental and numerical investigation on the heat transfer and flow characteristics of airfoil-shaped twisted hexagonal tubes

Heat transfer and flow characteristics of a rectangular channel with V-split protrusions

Computational analysis of thermophysical properties for radiative Jeffery fluid flow past an irregular magnetized wavy surface with motile microorganism: Biomedical and advanced energy applications.

Investigation of transient flow boiling heat transfer physics and system-level thermal-hydraulic responses during line chilldown

Experimental study on pool boiling heat transfer coefficient and critical heat flux on flat silicon surfaces under various heaving conditions

Integrated study of flow boiling heat transfer in enhanced tubes with varying three-dimensional structures

Boiling surface stability is essential for ensuring the safety and long-term performance of boiling-based thermal systems. While previous studies have addressed nanofluid boiling under repeated operation, this work focuses on finding the concentration threshold required for surface stabilization and explains how the sequence of nanofluid concentrations and post-stabilization dilution governs the evolution of SiO₂-deposited surfaces during successive pool boiling-cooling cycles. Nanoparticle concentration (0.01–2 wt. %), particle size (20–30 and 60–70 nm), and concentration sequencing effects are investigated. The results show that low concentrations (≤0.5 wt. %) of SiO2 nanofluid fail to stabilize surfaces within the accessible experimental range, whereas stable and repeatable behavior is achieved only at concentrations ≥1 wt. %. A surface stabilized with 2 wt. % SiO2 nanofluid achieves critical heat flux (CHF) values of about 1300 kW/m² and 1250 kW/m² for 20–30 and 60–70 nm nanoparticles, respectively, with wall superheats of about 52 °C. CHF is enhanced by 18 % and 13 % for 20–30 nm and 60–70 nm nanoparticles compared to deionized water, and this enhancement is preserved even after reducing the nanofluid concentration. On the 2 wt. %-stabilized surface, the boiling heat transfer coefficient (BHTC) rises with nanofluid concentration, and larger particles (60–70 nm) provide higher BHTC, with enhancements of approximately 8 %, 11 %, and 15 % at 2 %, 1 %, and 0.5 wt. %, respectively. Successive boiling-cooling cycles delay the onset of nucleate boiling (ONB) by about 75–85 % compared with the first cycle. The findings define a concentration-dependent stabilization threshold and propose a practical dilute-after-stabilization approach to achieve durable nanofluid boiling performance.

Pool boiling heat transfer mechanism on triply periodic minimal surface (TPMS) structures: experimental and theoretical analysis

Enhanced boiling heat transfer in silicon-based heat sinks with hybrid jet/gradient-density-pin-fin-microchannel

Zeotropic refrigerant mixtures are promising alternatives to high–global warming potential fluids due to their thermodynamic flexibility and temperature glide, which enables improved thermal matching in heat exchangers. However, the non-isothermal phase change and associated mass transfer effects introduce strong non-equilibrium behavior that challenges accurate prediction of flow boiling heat transfer. In this study, a generalized non-equilibrium heat transfer model is developed for annular flow boiling of binary zeotropic mixtures based on film theory. The model explicitly resolves coupled heat and mass transfer across the liquid film, vapor–liquid interface, and vapor core, accounting for interfacial temperature variation, axial and radial mass diffusion resistance, and species segregation. An iterative solution strategy is employed to simultaneously determine the interfacial temperature and heat flux by enforcing energy balance across all phases. A key advantage of the proposed framework is its flexibility, allowing integration of multiple liquid-film flow boiling correlations to optimize predictive performance for different mixtures and operating conditions. The model is validated against 1139 experimental data points covering 28 binary refrigerant pairs, a wide range of operating conditions, and temperature glides up to 35.8 °C, and it has achieved 81% of predictions within ±30% deviation. Overall, the proposed non-equilibrium framework consistently outperforms eleven existing flow boiling correlations, demonstrating improved robustness and broad applicability for modeling evaporation in zeotropic mixtures and supporting the design of advanced refrigeration and heat pump systems. • A generalized non-equilibrium model is developed for binary zeotropic evaporation. • Interfacial temperature and concentration gradients are included. • Validated against 1139 data points from various refrigerant pairs. • Allows tailored predictions for specific refrigerant mixtures. • Outperforms eleven existing correlations with 81% accuracy within ±30%.

Flow boiling heat transfer and pressure drop in gyroid and diamond TPMS channels