Results 241 to 250 of about 9,408,233 (288)

Drop Nusselt numbers in dropwise condensation

Applied Scientific Research, 1974
Most of the theoretical studies in dropwise condensation have based their analysis on the principle that the heat transfer rate limiting mechanism in dropwise condensation is the conduction of heat through drops. Based on this principle, Fatica and Katz presented shape factor values for droplets and these values have been used by other studies.
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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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Effects of outlet area on the Nusselt number of the solar chimney

AIP Conference Proceedings, 2021
Solar chimney has been applied widely in many aspects, such as civil engineering and building physics and demonstrated to be a good solution for natural ventilation of dwellings. It uses absorbed solar radiation to create stack effect which induces air flow and increases ventilation of building.
T. N. Huynh, Y. Q. Nguyen
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The developing Nusselt numbers for slug flow in rectangular ducts

International Journal of Heat and Mass Transfer, 1998
Abstract A rigorous solution is obtained for the 3-D temperature field in the thermal entrance region of rectangular ducts, for Newtonian fluids in slug flow, with constant wall heat flux and fluid longitudinal heat flux (H2 boundary conditions). The solution is presented as a series of the transverse Cartesian co-ordinates, where the coefficients ...
SPIGA, Marco, MORINI G. L.
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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.
Liang-Cai Zhong, De-Yi Shang
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Nusselt Number Measurements for Turbulent Rayleigh-Bénard Convection

Physical Review Letters, 2003
We present high-precision measurements of the Nusselt number N as a function of the Rayleigh number R for a cylindrical sample of water (Prandtl number sigma=4.4) of height L approximately equal to 50 cm and aspect ratio Gamma identical with D/L approximately equal to 1 (D is the diameter) for 3 x 10(9)< or =R< or =6 x 10(10).
Alexei Nikolaenko, Guenter Ahlers
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The limiting Sherwood and Nusselt numbers in sphere-packed beds

Letters in Heat and Mass Transfer, 1977
A 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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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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Nusselt Numbers in Rectangular Ducts With Laminar Viscous Dissipation

Journal of Heat Transfer, 1999
In 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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Darcy friction factor and Nusselt number in laminar tube flow of Carreau fluid

Rheologica Acta, 2022
S. K. Kim
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