Nusselt number - Wikipedia
Significance of Nusselt Number. The Nusselt number holds significance in the following ways: It establishes the connection between heat transfer through conduction and heat transfer through convection. When Nu = 1, it signifies an equilibrium where the rates of heat transfer via conduction and convection are equal, indicating a stationary fluid.
What is Nusselt Number - Definition - Thermal Engineering
Nusselt number equation | Nusselt number formula. Average Nusselt Number can be formulated as: Nu = Convective heat transfer / conductive heat transfer. Nu = h/(k/L c) Nu = hL c /k. where h = convective heat transfer coefficient of the flow. L = the characteristic length. k = the thermal conductivity of the fluid. The Local Nusselt Number is ...
Nusselt number: Definition, Formula, Significance, Examples [with Pdf ...
Nusselt number, defined as (6-5) where k is the thermal conductivity of the fluid and L c is the characteristic length. The Nusselt number is named after Wilhelm Nusselt, who made sig-nificant contributions to convective heat transfer in the first half of the twen-tieth century, and it is viewed as the dimensionless convection heat transfer ...
Nusselt Number - an overview | ScienceDirect Topics
Nusselt number is a dimensionless parameter that measures the rate of heat transfer by convection or conduction. Learn how it is calculated, applied and influenced by various factors in different engineering contexts, such as heat exchangers, impinging jets and rotating tubes.
Nusselt Number
The effect of pulsation on the heat transfer characteristics are presented in terms of both relative local and relative mean Nusselt number defined as the ratio of the value of local and mean Nusselt number for pulsated flow to the corresponding ones for steady flow at the same Reynolds numbers.
Bilangan Nusselt - Wikipedia bahasa Indonesia, ensiklopedia bebas
Nusselt Number. The Nusselt number is measured by the difference of temperature of the cooling liquid at the entrance and exit of the inner sphere and the Rayleigh number is measured by the jump of temperature across the gap. From: Treatise on Geophysics, 2007. Related terms: Nanoparticle; Ferrofluid; Free Convection; Magnetic Field; Reynolds ...
Nusselt number to describe convective heat transfer
On comparing the Nusselt number of single sources with the Nusselt number from a double source, very interesting findings emerge. It is found that Nusselt number for magnets placed at x = 25 mm is comparable with the Nusselt number for two magnetic source positioned at x = 7.5 and 15 mm.
Calculation of the Nusselt numbers for forced flows over plates and in ...
Show abstract. PDF | The often used Nusselt number is critically questioned with respect to its physical meaning. Based on a rigorous dimensional analysis, alternative... | Find, read and cite all ...
Nusselt Number - an overview | ScienceDirect Topics
Nusselt number is a measure of the ratio between heat transfer by convection (α) and heat transfer by conduction alone (λ/L). Convective heat transfer relationships are usually expressed in terms of Nusselt number as a function of Reynolds Number and Prandtl Number .
Nusselt Number - an overview | ScienceDirect Topics
Nusselt number is a dimensionless number that describes the ratio of the thermal energy convected to the fluid to the thermal energy conducted within the fluid. It is used to calculate the convection heat transfer coefficient at the surface of a fluid layer. Learn how to calculate Nusselt number for different flow regimes, such as laminar, turbulent, and liquid metal reactors, and see correlations and examples.