Results 11 to 20 of about 430,419 (257)

Influence of Nusselt number on weight loss during chilling process

open access: goldProcedia Engineering, 2012
AbstractThe coupling of the heat and mass transfer occurs on foods during chilling process. The temperature of foods is reduced while weight changes with time. Chilling time and weight loss involve the operating cost and are affected by the design of refrigeration system.
C. Tangduangdee, R. Mekprayoon
openaire   +3 more sources

Classical 1/3 Nusselt number scaling in highly turbulent compressible convection [PDF]

open access: greenarXiv
Planetary and stellar convection, which are compressible and turbulent, remain poorly understood. In this paper, we report numerical results on the scaling of Nusselt number ($\mathrm{Nu}$) and Reynolds number ($\mathrm{Re}$) for extreme convection.
Himanshu Tiwari, Mahendra K. Verma
arxiv   +3 more sources

Local Nusselt number evaluation in the case of jet impingement [PDF]

open access: goldJournal of Physics: Conference Series, 2018
Jet impingement still is one of demanding cases regarding computational fluid dynamics, due to its highly turbulent behaviour, with occurrence of turbulent-laminar transition. Even recently developed methods exhibit some drawbacks - RANS based simulations lack accuracy, LES and DNS based ones require too much computational time.
Kura, T.M. (author)   +3 more
openaire   +5 more sources

The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows [PDF]

open access: yesAl-Khawarizmi Engineering Journal, 2008
In this numerical study a detailed evaluation of the heat transfer characteristics and flow structure in a laminar and turbulent flow through a rectangular channel containing built-in of different type vortex generator has been a accomplished in a range ...
Laith J.H   +2 more
doaj   +3 more sources

Fronts in reactive convection: bounds, stability and instability [PDF]

open access: yesarXiv, 2002
We consider front propagation in a reactive Boussinesq system in an infinite vertical strip. We establish nonlinear stability of planar fronts for narrow domains when the Rayleigh number is not too large.
Constantin, Peter   +2 more
core   +2 more sources

Nusselt number and friction factor in zig-zag microchannels subjected to constant heat flux

open access: goldInternational Journal of Thermofluids
This study quantifies the heat transfer coefficient, pressure drop, Nusselt number and friction factor associated with flow of water in zig-zag microchannels, with square cross-section and sharp edges, when subjected to constant heat flux boundary ...
Bobby Mathew   +5 more
doaj   +2 more sources

Relationship between Nusselt number and the thermoviscous (Rott) functions [PDF]

open access: bronzeThe Journal of the Acoustical Society of America, 2006
The characterization of the thermal properties of regenerator materials has traditionally been studied by measurement of the heat transport of a gas passing through a regenerator flanked by two heat exchangers. The results for heat transfer between the gas and regenerator are typically expressed as a nondimensional Nusselt number.
Steven L. Garrett, Jin Liu
openaire   +3 more sources

Heat Transfer Coefficients Analysis in a Helical Double-Pipe Evaporator: Nusselt Number Correlations through Artificial Neural Networks. [PDF]

open access: goldEntropy (Basel), 2019
Parrales A   +6 more
europepmc   +3 more sources

Empirical study for Nusselt number optimization for the flow using ANOVA and Taguchi method

open access: goldCase Studies in Thermal Engineering, 2023
ANOVA and Taguchi is an optimization tool used to find the optimal combination to achieve the highest heat transmission rate for a Casson-Carreau nanofluid flow over a curved surface.
B. Nagaraja   +5 more
doaj   +2 more sources

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