Heat Transfer Coefficients Analysis in a Helical Double-Pipe Evaporator: Nusselt Number Correlations through Artificial Neural Networks. [PDF]
Entropy (Basel), 2019 In this study, two empirical correlations of the Nusselt number, based on two artificial neural networks (ANN), were developed to determine the heat transfer coefficients for each section of a vertical helical double-pipe evaporator with water as the ...
Parrales A +6 more
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The Effects of Duct Shape on the Nusselt Number [PDF]
Mathematical and Computational Applications, 2005 As was pointed out by Mike Yuratich of [...]
M. Erdoğan, C. Imrak
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Nusselt number correlation for turbulent heat transfer of helium–xenon gas mixtures [PDF]
Nuclear Science and Techniques, 2021 A gas-cooled nuclear reactor combined with a Brayton cycle shows promise as a technology for high-power space nuclear power systems. Generally, a helium–xenon gas mixture with a molecular weight of 14.5–40.0 g/mol is adopted as the working fluid to ...
Biao Zhou, Yu Ji, Jun Sun, Yuliang Sun
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Upper bounds on Nusselt number at finite Prandtl number [PDF]
Journal of Differential Equations, 2016 We study Rayleigh B nard convection based on the Boussinesq approximation. We are interested in upper bounds on the Nusselt number $\mathrm{Nu}$, the upwards heat transport, in terms of the Rayleigh number $\mathrm{Ra}$, that characterizes the relative strength of the driving mechanism and the Prandtl number $\mathrm{Pr}$, that characterizes the ...
Antoine Choffrut +2 more
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Nusselt Number Correlation for Vertical Tubes with Inverted Triangular Fins under Natural Convection [PDF]
Energies, 2017 Vertical tubes with inverted triangular fins under natural convection are investigated experimentally. The thermal resistances of tubes with inverted triangular fins are measured for various fin numbers, fin heights, and heat inputs.
Byeong Dong Kang +2 more
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Influence of Nusselt number on weight loss during chilling process
Procedia 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
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The Effects of Vortex Generator Types on Heat Transfer and Flow Structure in a Rectangular Duct Flows [PDF]
Al-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
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Local Nusselt number evaluation in the case of jet impingement [PDF]
Journal 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
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Relationship between Nusselt number and the thermoviscous (Rott) functions [PDF]
The 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
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The influence of Nusselt number on dropwise condensation heat transfer for a single droplet on inclined and grooved surfaces. [PDF]
Sci RepMohammadpour L, Moghadasi H, Moosavi A.
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