A CFD Study of [C2mim][CH3SO3]/Al2O3 Ionanofluid Flow and Heat Transfer in Grooved Tubes

Predicting the effects of environmental parameters on the spatio-temporal distribution of the droplets carrying coronavirus in public transport – A machine learning approach

“…Turbulence zone LES-RANS Dissipation rate-Re 15, 000 < Re < 87, 320 [34] Transient zone GEKO Re-turbulence intensity 5, 300 < Re < 15, 000 [35] Laminar model Laminar Zone -Re < 5, 300 [36] Evaporation method Arbitrary-Lagrangian-Eulerian Droplet diameter Upperrangeddroplet < 250μmLowerrangeddroplet > 1μm [37,38] Droplet temperature Non-uniform profile Temperature gradient of droplet and ambient…”

Analysis on flow structure and improvement of heat transfer in 3D circular tube with varying axial groove turbulator configurations

“…They found that the Nusselt number enhanced by 2.3 times and the friction characteristic improved by 2.83 times as compared to the smooth duct. In the recent numerical study for the enhancement of the thermal efficiency done by Mesgarpour et al 18 for different grooved tubes, for various range of Re between 500 and 2000, the working fluid use a ionanofluid with a concentration of 0.05%-2% the obtained results for the spirally corrugated grooves tube showed that the heat transfer coefficient increases by 15.54% for Re about 500 with 0.05% ionanofluid concentration with compression to the smooth tube. Based on the above studies, it can be observed that using turbulators devices are widely employed in different types of heat exchanging fields Bahiraei et al, 19 such as gas turbine blade cooling, solar air heaters are cooling devices for electronic components and compact heat exchangers.…”