... sand mixed into hydrophilic sand. The sand–water mixtures experienced forced convection above and through the sand layer, while a simulated solar flux (i.e., 112±20 W/m 2 ) was applied. Evaporation from homogeneous porous media is classified into the constant-rate, falling-rate, and slow-rate periods...

... the impact of intersurface radiation between the target plate and confined surfaces on the overall cooling performance, three emissivity values ( ε = 0.05, 0.5, and 0.95) are taken into consideration. Additionally, simulations are done for the pure convective heat transfer, ignoring intersurface radiation...

... analyzes the nonlinear sublimation process driven by convective heat/mass transfer and evaporation of water vapor using the Legendre wavelet collocation method (LWCM). Results from the present work are shown to be in excellent agreement with the exact solution of the special case of a linear problem...

...S. Corasaniti; P. Coppa; M. Potenza; G. Bovesecchi Four probes for measuring thermal conductivity, thermal diffusivity, and convection heat transfer coefficient were designed, built, and tested. In two of these probes (SP-1 and SP-2), three thermocouples were placed at 25%, 50%, and 75...

...Y. Haseli; G. F. Naterer This article presents new semi-analytical solutions for transient heat conduction in a slab, which exchanges heat at the surface with its surroundings via convection, radiation, or simultaneous convection–radiation mechanisms. The concept of thermal penetration depth...

...Raoudha Chaabane; Abdelmajid Jemni; Patrick Perré Free convection heat transfer and flow characteristics in an open-ended enclosure occupied with fluid saturated porous media are highlighted in this paper. All numerical investigations are achieved using the mesoscopic approach thermal Lattice...

...Subrat Garnayak; Subhasisa Rath For the very first time, this study attempts to address the heat dissipation from an isothermal ribbed sphere under the action of pure natural convection. Semicircular ribs of different radii are superimposed azimuthally on the outer surface of a sphere. The addition...

...Yousef M. F. EL Hasadi; J. M. Khodadadi Development of the solid–liquid interface, distribution of the particle concentration field, as well as the development of thermosolutal convection during solidification of colloidal suspensions in a differentially heated cavity are investigated...

... pistons. oil-jet jet cooling piston heat transfer engine pistons convection Driven by the continuous demand for improvement in fuel economy, the average engine size has been progressively decreasing, and consequently the power density of engines has been progressively increasing to meet...

... February 12, 2014. Assoc. Editor: D. K. Tafti. 03 06 2013 20 11 2013 A new all-time model is developed to predict transient laminar forced convection heat transfer inside a circular tube under arbitrary time-dependent heat flux. Slug flow (SF) condition is assumed for the velocity...

... cooling channel convection infrared thermography ribbed channel thermal boundary condition Both numerical and experimental investigations of heat transfer enhancing cooling geometries should reproduce the thermal boundary conditions that reflect the application environment. Most studies do...

... of temperature [ 16 , 17 ]. The numerical heat and mass transfer analysis of the reacting heterogeneous medium is based on volume-averaged mass and energy conservation equations that couple radiative, conductive and convective heat transfer modes as well as the advection and diffusion of mass...

... strip mill of a steel plant. The current heat transfer analysis shows that surfactant added water jet produces higher heat flux than the pure water jet due to the higher forced convection cooling area. Dissolved surfactant increases the transition boiling heat flux, nucleate boiling heat flux...

... 2010 07 07 2012 A meshless method is used in a projection-based approach to solve the primitive equations for fluid flow with heat transfer. The method is easy to implement in a matlab format. Radial basis functions are used to solve two benchmark test cases: natural convection...

... a microcantilever beam by employing the thermal resistance network. At low pressures, the convective heat transfer coefficient is a function of pressure, as expected from free-molecular theory. As the pressure passes 40 kPa, the heat transfer coefficient goes to a constant value of 1250 W/m 2 K [( 21...

... to assess the convection effects, and a criterion for thermal conductivity measurements was obtained for water flowing in a circular tube. 15 03 2011 12 03 2012 27 06 2012 29 06 2012 convection liquid thermal conductivity measurement thermal wave three omega method...

... number, and surface-emissivity, on the convective, radiative, and total Nusselt numbers, are analyzed for 100 ≤ Re d ≤ 900, 1 ≤ H ≤ 8, 0.1 ≤ N RF,d ≤ 2, 0.01 ≤ Ri d ≤ 10, and 0.05 ≤ ɛ ≤ 0.85. It was found that the radiation-flow interaction parameter was most influential in affecting the radiative...

...M. Bachiri; A. Bouabdallah In this work, we attempt to establish a general analytical approximation of the convection heat transfer from an isothermal wedge surface to fluids for all Prandtl numbers. The flow has been assumed to be laminar and steady state. The governing equations have been written...

...P. S. Wei; C. L. Lin; H. J. Liu; T. DebRoy The molten pool shape and thermocapillary convection during melting or welding of metals or alloys are self-consistently predicted from scale analysis. Determination of the molten pool shape and transport variables is crucial due to their close...

...T. Hayat; M. Awais; S. Obaidat This paper discusses the mixed convection three-dimensional boundary layer flow of upper-convected Maxwell fluid over a stretching surface. Magnetohydrodynamic (MHD) combined with Soret and Dufour effects are also taken into account. The governing problems are first...