Shiming, Experimental Study of Natural Convection Heat Transfer of Air Layers in Vertical Annuli under High Rayleigh Number Conditions, Heat Transf. Asian Res., vol. 28, pp. 50-57, 1999.Experimental study of na
A magnetic field was applied with permanent magnets to the natural convection of oxygen-containing air in a cubic container consisting of a pair of vertical walls maintained at different temperatures. Two-dimensional numerical simulations were performed on this configuration to investigate the change in...
Moreover, the heat transfer coefficient decreased slightly with the gap. Sparrow et al. [5] analyzed the water natural convection heat transfer in a vertical rectangular channel both experimentally and numerically. One of the wider walls of the channel was maintained at a uniform temperature, ...
20.2.5.3.1 Natural Convection The convection of a fluid caused by gravity is called natural convection, and it can be divided into heat convection and mass convection. The driving force of heat convection is a temperature gradient, and for mass convection it is a solute concentration gradient. ...
Natural convection cooling using air as a fluid is commonly used in the cooling of electronic equipment and many other devices. In this work, a three-dimensional numerical study of natural convection heat transfer from multiple protruding heat sources simulating electronic components is conducted. ...
They concluded that when the heat transfer coefficient is small, then the temperature of the fluid phase was lower than that of the solid phase. Badruddin et al.24 also conducted a study on the effect of thermal-natural convection in a square porous cavity using LTNE approach. The onset of...
This work deals with analyzing the natural convection heat transfer process with the evaluation of Rayleigh number, Nusselt number, the wall convection coefficient, and the convective flux. The results show that many parameters affect the wall function and therefore the thermocirculation process. The ...
Discussion Forum Natural convection in heat transfer Note: This discussion is about an older version of the COMSOL Multiphysics® Discussion Closedclick here Send Private MessageFlag post as spam I am solving natural convection problem for 5hrs in which first problem start with conduction and ...
The temperature drop of the working fluid within the helical coil is taken as the convective loss occurring from the receiver. The natural convection loss is then calculated as (1) where is the fluid mass flow rate, cp is the specific heat of the working fluid, Tf,in is the fluid ...
This paper presents and discusses the experimental measurements versus the results from the available correlations in the literature that are commonly used to predict the free convection heat transfer coefficient between the surfaces and the flowing air. The experimental investigations were accomplished usin...