
Nanomaterials, Год журнала: 2025, Номер 15(10), С. 757 - 757
Опубликована: Май 18, 2025
Heat pipes are highly efficient heat transfer devices relying on phase-change mechanisms, with performance heavily influenced by working fluids and operational dynamics. This review article comprehensively examines hydrodynamics in pipes, contrasting conventional nanofluid-enhanced systems. In the present work we discuss mathematical models governing fluid flow transfer, emphasizing continuum porous media approaches for wick structures. Functional dependencies of thermophysical properties (e.g., viscosity, surface tension, thermal conductivity) reviewed, highlighting temperature-driven correlations nanofluid modifications. Transport mechanisms within wicks analyzed, addressing capillary-driven flow, permeability, challenges posed nanoparticle integration. Fourth, interfacial conditions—evaporation condensation—are modeled, focusing kinetic theory empirical correlations. Also, numerical experimental results synthesized to quantify enhancements from nanofluids, including resistance reduction capillary limit extension, while inconsistencies stability pressure drop trade-offs. Finally, applications spanning electronics cooling, aero-space, renewable energy systems evaluated, underscoring nanofluids’ potential expand pipe usability extreme environments. The identifies critical gaps, such as long-term scalability lab-scale models, advocating unified frameworks optimize selection design. serves a foundational reference researchers engineers aiming advance technology through integration, balancing theoretical rigor practical feasibility.
Язык: Английский