Comparison of Nusselt number and stream function in tall and narrow enclosures in the mixed convection of hybrid nanofluid
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Thermal Analysis and Calorimetry"
DOI: 10.1007/s10973-020-09809-2
Abstract: In this research, the average Nusselt number in tall and narrow enclosures in the presence of mixed convection of a water-based nanofluid (H 2 O–Cu–TiO 2 ) is determined and compared. The effect of quantities… read more here.
Keywords: nusselt number; narrow enclosures; number; average nusselt ... See more keywords
Heat transfer in turbulent nanofluids: Separation flow studies and development of novel correlations
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Powder Technology"
DOI: 10.1016/j.apt.2020.06.001
Abstract: Abstract Convective heat transfer plays a significant role in numerous industrial cooling and heating applications. This method of heat transfer can be passively improved by reconfiguring flow passage, fluid thermophysical properties, or boundary conditions. The… read more here.
Keywords: heat; flow; heat transfer; nusselt number ... See more keywords
Gas-solid heat transfer in assemblies of cubes for Re ≤ 100
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Engineering Science"
DOI: 10.1016/j.ces.2020.115478
Abstract: Abstract The thermal lattice Boltzmann method using an immersed moving boundary condition was employed to calculate the particle-to-fluid heat transfer in an assembly of super-quadric cubes. The simulations were performed for Reynolds numbers 1–100 (based… read more here.
Keywords: number; assemblies cubes; heat transfer; nusselt number ... See more keywords
Numerical investigation on heat transfer behavior of thermally developing flow inside rectangular microchannels
Sign Up to like & getrecommendations! Published in 2021 at "Case Studies in Thermal Engineering"
DOI: 10.1016/j.csite.2021.100856
Abstract: Abstract A numerical investigation is conducted to study the heat transfer characteristics of laminar flow in three-dimensional rectangular microchannels with aspect ratios of 0.1–1 and Reynolds numbers of 5–400. In this paper, the effects of… read more here.
Keywords: number; reynolds number; numerical investigation; heat transfer ... See more keywords
Boundary effects on the drag coefficient and average Nusselt number of a sphere in SCW: A comparative study
Sign Up to like & getrecommendations! Published in 2019 at "Engineering Analysis with Boundary Elements"
DOI: 10.1016/j.enganabound.2019.02.001
Abstract: Abstract A comparative study on cold supercritical water (SCW) passing over a hot sphere is carried out using the particle-resolved direct numerical simulation (PR-DNS) to examine the wall effects. Different working conditions are considered to… read more here.
Keywords: comparative study; drag coefficient; average nusselt; nusselt number ... See more keywords
Role of finite element based grids and simulations on evaluation of Nusselt numbers for heatfunctions within square and triangular cavities involving multiple discrete heaters
Sign Up to like & getrecommendations! Published in 2017 at "International Communications in Heat and Mass Transfer"
DOI: 10.1016/j.icheatmasstransfer.2017.09.008
Abstract: Abstract Nusselt number is an important non-dimensional parameter which quantifies the heat transfer rate. Local Nusselt number is useful in predicting the heat transfer rate along the various hot and cold sections of the side… read more here.
Keywords: finite element; side walls; heat; nusselt numbers ... See more keywords
Hydro-thermal behaviour determination and optimization of fully developed turbulent flow in horizontal concentric annulus with ethylene glycol and water mixture based Al2O3 nanofluids
Sign Up to like & getrecommendations! Published in 2019 at "International Communications in Heat and Mass Transfer"
DOI: 10.1016/j.icheatmasstransfer.2019.104346
Abstract: Abstract In this study, a comprehensive analysis of forced convection heat transfer and pressure drop through a concentric annulus heated from the inner wall and utilizing ethylene glycol (EG)-water based nanofluids for fully developed turbulent… read more here.
Keywords: fully developed; concentric annulus; glycol water; number ... See more keywords
On the unsteady forced convection in porous media subject to inlet flow disturbances-A pore-scale analysis
Sign Up to like & getrecommendations! Published in 2020 at "International Communications in Heat and Mass Transfer"
DOI: 10.1016/j.icheatmasstransfer.2020.104639
Abstract: Abstract Heat convection response of a porous medium to the harmonic disturbances in the inlet flow is investigated in a configuration consisting of several obstacles. Navier Stokes and energy equations are solved computationally and the… read more here.
Keywords: convection porous; number; inlet flow; pore scale ... See more keywords
Application of M5 tree regression, MARS, and artificial neural network methods to predict the Nusselt number and output temperature of CuO based nanofluid flows in a car radiator
Sign Up to like & getrecommendations! Published in 2020 at "International Communications in Heat and Mass Transfer"
DOI: 10.1016/j.icheatmasstransfer.2020.104667
Abstract: Abstract In the current study, CuO nanoparticles were dispersed in a mixture of Ethylene Glycol-Water (60/40 wt. %) to prepare stable nanofluid in different concentrations (0.05 − 0.8 vol. %). The samples were used as the coolant… read more here.
Keywords: output temperature; regression; nusselt number;
Natural convection in a cubical cavity with a coaxial heated cylinder
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2017.11.046
Abstract: Abstract High-resolution three-dimensional simulations were conducted to investigate the velocity and temperature fields in a cold cubical cavity due to natural convection induced by a centrally placed hot cylinder. Unsteady, incompressible Navier-Stokes equations were solved… read more here.
Keywords: cavity; cylinder; spanwise; enclosure ... See more keywords
New friction factor and Nusselt number equations for turbulent convection of liquids with variable properties in circular tubes
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Heat and Mass Transfer"
DOI: 10.1016/j.ijheatmasstransfer.2018.03.082
Abstract: Abstract Large temperature differences between the wall and bulk fluid in heat exchangers will result in significant property variations in the cross section. Most existing equations use correction factors such as ( μ w /… read more here.
Keywords: variable properties; turbulent convection; friction; number ... See more keywords