Abstract In this paper a numerical study of natural convection stationary laminar heat transfers in horizontal ring between heated square inner cylinder and cold elliptical outer is presented. A Cu-water nanofluid flows through annular space. Different values the Rayleigh number volume fraction nanoparticles are studied. The system equations governing problem was solved numerically by fluent ca...

H. Salt, Transient conduction in two-dimensional composite slab--I. Theoretical development of temperature modes, ht. J. Heat Mass Transfer 26, 1611-1616 (1983). H. Salt, Transient conduction in two-dimensional composite slab--II. Physical interpretation of temperature modes, ht. J. Heat Mass Transfe 26,1617-1623 (1983). M. D. Mikhailov, General solutions of heat equation in finite regions. ht....

Two-dimensional numerical study of flow and temperature fields for laminar natural convection and radiation in the inclined cavity is performed in the present work. The walls of the square cavity are assumed kept at constant temperatures. An absorbing, emitting, and scattering gray medium is enclosed by the opaque and diffusely emitting walls. The set of governing equations, including conservat...

The problem of steady, laminar and incompressible natural convection flow in an octagonalenclosure was studied. In this investigation, two horizontal walls were maintained at a constant hightemperature, two vertical walls were kept at a constant low temperature and all inclined walls wereconsidered adiabatic. The enclosure was assumed to be filled with a Bousinessq fluid. The studyincludes comp...

The motion of temperature dependent viscosity and thermal conductivity of steady incompressible laminar free convective (MHD) non-Newtonian Casson fluid flow over an exponentially stretching surface embedded in a thermally stratified medium are investigated. It is assumed that natural convection is induced by buoyancy and exponentially decaying internal heat generation across the space. The dim...

natural convection between vertical parallel plates occurs frequently in applications such as solar collectors and cooling of electronic instruments. the problem is a two dimensional developing buoyant flow. in this work, the two dimensional conservation equations are solved numerically for constant wall temperature and constant wall heat flux. the results for the local nusselt number at the du...