Results 241 to 250 of about 51,105 (282)

Nusselt number for steady Poiseiulle flow through a pipe

Mechanics Research Communications, 1994
Abstract The efficiency of the heat transfer mechanism for the fully developed steady Poiseiulle flow of a viscus incompressible fluid through a pipe of uniform but arbitrary cross section, when the wall of the pipe is maintained at a constant temperature, is measured by the average Nusselt number Nu .
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Procedure for Optimal Formalization of Nusselt Number

2016
Theoretical equations of Nusselt number are derived out based on our innovative similarity transformation model. Such theoretical equations show that the wall similarity temperature gradient is the only one unknown variable dominating the evaluation of the Nusselt number.
De-Yi Shang, Liang-Cai Zhong
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Relationship between Nusselt number and the thermoviscous (Rott) functions

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.
Jin Liu, Steven L. Garrett
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Nußelt-Zahl Nu (Nusselt number Nu)

2000
Es handelt sich um eine dimensionslose Kennzahl im Sinne der Dimensionsanalysis. Sie wird haufig zur dimensionslosen Darstellung des Warmeuberganges in der Form Nu = Nu(⋯) benutzt und stellt in diesem Sinne eine Zielkennzahl dar (dimensionslose Form einer gesuchten Grose, hier der Wandwarmestromdichte).
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Combined-convection segregation coefficient and related Nusselt numbers

Journal of Crystal Growth, 2013
Abstract In Czochralski growth, forced convection is always accompanied by natural convection. Hence, an effective segregation coefficient, which accounts for both forced and buoyancy-induced convection, was recently proposed. This combined-convection coefficient is presented here in dimensionless form, k CC ( Nu FC , Nu NC , Pe ), where
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Nusselt numbers in laminar flow for H2 boundary conditions

International Journal of Heat and Mass Transfer, 1996
Abstract The present analysis deals with the velocity and temperature distribution in steady state, hydro dynamically and thermally fully developed, laminar forced flow for Newtonian fluids in rectangular ducts. The analytical solutions are presented for all the eight modified H2 thermal boundary conditions around the periphery of the duct cross ...
SPIGA, Marco, MORINI G. L.
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Relation between Nusselt number and Rayleigh number in turbulent thermal convection

Journal of Fluid Mechanics, 1976
A theory is developed for the dependence of the Nusselt number on the Rayleigh number in turbulent thermal convection in horizontal fluid layers. The theory is based on a number of assumptions regarding the behaviour in the molecular boundary layers and on the assumption of a buoyancy-defect law in the interior analogous to the velocity-defect law in ...
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Average Nusselt number on the downward-facing heated plate

International Journal of Heat and Mass Transfer, 1986
On applique le concept de deplacement virtuel pour trouver une correlation de forme close pour le nombre de ...
D.K. Edwards, J.C. Haiad
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A New Correlation of Nusselt Number for Impinging Jets

Heat Transfer Engineering, 2009
Jet impingement heat transfer has received a remarkable amount of attention by researchers throughout the world for many years due to widespread interest from both academic and industrial points of view. However, the fluid dynamics involved with arrays of jets are very complex and still not completely understood. Therefore, a functional relationship of
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NUSSELT NUMBER VARIATION IN MICROCHANNELS

Hybrid Methods in Engineering, 2001
Gokturk Tunc, Yildiz Bayazitoglu
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