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The limiting Sherwood and Nusselt numbers in sphere-packed beds
Letters in Heat and Mass Transfer, 1977A model for calculating the limiting values of the Sherwood and the Nusselt numbers is proposed. It is argued that these numbers, when based on local driving forces, must approach finite values as the Reynolds number approaches zero. The calculated results are in good agreement with available experimental data.
Hong Yong Sohn, Hong Yong Sohn
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Limit value of the Nusselt number for particles of different shape
International Journal of Heat and Mass Transfer, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Antje Wadewitz, Eckehard Specht
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Nusselt Numbers in Rectangular Ducts With Laminar Viscous Dissipation
Journal of Heat Transfer, 1999In this paper, the steady temperature distribution and the Nusselt numbers are analytically determined for a Newtonian incompressible fluid in a rectangular duct, in fully developed laminar flow with viscous dissipation, for any combination of heated and adiabatic sides of the duct, in H1 boundary condition, and neglecting the axial heat conduction in ...
Gian Luca Morini, M. Spiga
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Nusselt numbers in laminar flow for H2 boundary conditions
International Journal of Heat and Mass Transfer, 1996Abstract 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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A Nusselt Number Correlation Classification System
1999 Annual Conference ProceedingsComment: 13 ...
Todd Jammer +3 more
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Nusselt number for convection driven by tidal and radiogenic heating
Advances in Space Research, 2009Abstract The ‘traditional’ formulas giving the Nusselt number Nu as a function of Rayleigh number Ra cannot be used for low and moderate values of Ra. Moreover, the recent progress in 3D numerical modeling makes possible to determine the Nusselt number Nu as a function of Rayleigh number Ra for convection driven by radiogenic and tidal heating.
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Static and dynamic measurements of the Nusselt number in turbulent convection
Physica Scripta, 2013Measurements of the dimensionless heat transfer rate, or Nusselt number Nu, are typically made by static measurements of the heat flux and the average resulting temperature difference across a horizontal layer of fluid under steady state conditions. Here, we describe a dynamic method that uses the properties of a heat wave generated by sinusoidally ...
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Nußelt-Zahl Nu (Nusselt number Nu)
2000Es 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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Consideration on Nusselt numbers of liquid metals flowing in tubes
Nuclear Engineering and Design, 2019Abstract Representative experimental results for the heat transfer coefficients (HTCs) of liquid metals flowing in tubes under turbulent conditions are reviewed from the standpoint of experimental apparatuses, instrumentations and data derivation methods.
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NUSSELT NUMBER VARIATION IN MICROCHANNELS
Hybrid Methods in Engineering, 2001Yildiz Bayazitoglu, Gokturk Tunc
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